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#19619 From: Seiichi Yoshida <comet@...>
Date: Sat May 19, 2012 5:16 am
Subject: 71P, 96P, C/2011 U3 		seiichi_yosh...
Send Email Send Email
  
Dear colleagues,

The following comets have not been observed recently. They are
observable in the Southern Hemisphere.

71P/Clark
96P/Machholz 1
C/2011 U3 ( PanSTARRS )

   http://www.aerith.net/comet/weekly/current.html

Best regards,

--
Seiichi Yoshida
comet@...
http://www.aerith.net/

Reply | Messages in this Topic (3)
#19620 From: "gvnn64\@libero\.it" <gvnn64@...>
Date: Sat May 19, 2012 10:30 am
Subject: RE: Update on comet C/2011 L4 (PANSTARRS) 		gvnn64
Send Email Send Email
  
> I notice that the phase angle of this comet is small at the moment. Do you
think that this might be contributing to the brightness of the central
condensation, giving it the almost star-like appearance being reported visually?

Interesting question, David. Unfortunately we don't have previous data to
compare the contribution of the phase effect to the brightness of this comet.
However, yes, considering the behaviour of other comets observed at small phase
angles, there are good chances that currently comet Panstarrs might show a surge
in its brightness due to the phase effect.
This phenomena is particularly effective in dust-rich comae, as it seems to be
the case of C/2011 L4. We hope to show this thing from the afrho lightcurve,
provided that we will be able to collect enough data.

With kind regards,
Giovanni Sostero

Reply | Messages in this Topic (3)
#19621 From: "RICHARD MILES" <rmiles.btee@...>
Date: Sat May 19, 2012 9:15 pm
Subject: A new outburst of Comet 17P/Holmes 		gallileo99uk
Send Email Send Email
  
Comet 17P/Holmes is a fascinating comet having drawn our attention bigtime
when it underwent a superoutburst brightening ~14 magnitudes on 2007 October
24. Interestingly, although its activity subsided, it did exhibit a clear
outburst on 2009 Jan 04. The exact date is known thanks to monitoring by
Luca Buzzi at Schiaparelli Obs. and by Richard Miles and George Faillace
using the 2.0-m Faulkes Telescope North.  The photometry can be seen here:

http://www.britastro.org/~rmiles/Images/17P_2008-9_photometry.png

In 2010 October, the comet reached aphelion at r = 5.188 AU and since then
it has been approaching the Sun at an ever-increasing rate.

The latest news is that although the cometary nucleus is still about 4.4 AU
from the Sun, it has just undergone another distinct outburst, brightening
by some 1.3 magnitudes as observed using the 2.0-m Faulkes Telescope South.
Here is the photometry as measured using an aperture radius of 2.4":

Date       R mag
Apr 13    21.1
Apr 19    20.9
May 15   19.7
May 17   20.1
May 18   20.2

The outburst probably occurred on 2012 May 12+/-2 as deduced from images
taken on each of the above 5 epochs. See:

http://www.britastro.org/~rmiles/Images/17P_2012May_outburstA.png

Comet Holmes has some unusual characteristics.  It is likely to be a very
slow rotator: one unofficial estimate is a rotation period of 44+/-2 days.
Observers located in the southern hemisphere may find this object to be a
rewarding target for study. Its current apparition comes to an end in about
August but the next one (2013 March - 2013 September inclusive) will be
favourable.  Perihelion occurs near solar conjunction in 2014 March and it
then moves northwards occupying a similar region of the sky to its famous
2007 apparition.

Given that the 2007 superoutburst was much more energetic than its outburst
on the occasion of its discovery in 1892, the physical integrity of the
cometary nucleus may have been compromised in some way so we may have to
expect the unexpected from this object during the next few years.

Assistance from the Faulkes Telescope Project led by Dr Paul Roche is
gratefully acknowledged (see for example:
http://en.wikipedia.org/wiki/Faulkes_Telescope_Project ) and without which
none of this work would have been possible.

Richard Miles
BAA

Reply | Messages in this Topic (7)
#19622 From: "Dave Herald" <drherald@...>
Date: Sun May 20, 2012 6:58 am
Subject: Re: A new outburst of Comet 17P/Holmes 		dave_herald
Send Email Send Email
  
I imaged this comet on Feb 24 and Mar 30. The mean magnitude was 21.0 on both
occasions.

An image from Feb 24 is at:
http://tinyurl.com/7u6t7vk


Dave Herald
Murrumbateman, Australia


From: RICHARD MILES
Sent: Sunday, May 20, 2012 7:15 AM
To: comets-ml@yahoogroups.com ; Comets-disc
Subject: [comets-ml] A new outburst of Comet 17P/Holmes
Comet 17P/Holmes is a fascinating comet having drawn our attention bigtime
when it underwent a superoutburst brightening ~14 magnitudes on 2007 October
24. Interestingly, although its activity subsided, it did exhibit a clear
outburst on 2009 Jan 04. The exact date is known thanks to monitoring by
Luca Buzzi at Schiaparelli Obs. and by Richard Miles and George Faillace
using the 2.0-m Faulkes Telescope North.  The photometry can be seen here:

http://www.britastro.org/~rmiles/Images/17P_2008-9_photometry.png

In 2010 October, the comet reached aphelion at r = 5.188 AU and since then
it has been approaching the Sun at an ever-increasing rate.

The latest news is that although the cometary nucleus is still about 4.4 AU
from the Sun, it has just undergone another distinct outburst, brightening
by some 1.3 magnitudes as observed using the 2.0-m Faulkes Telescope South.
Here is the photometry as measured using an aperture radius of 2.4":

Date       R mag
Apr 13    21.1
Apr 19    20.9
May 15   19.7
May 17   20.1
May 18   20.2

The outburst probably occurred on 2012 May 12+/-2 as deduced from images
taken on each of the above 5 epochs. See:

http://www.britastro.org/~rmiles/Images/17P_2012May_outburstA.png

Comet Holmes has some unusual characteristics.  It is likely to be a very
slow rotator: one unofficial estimate is a rotation period of 44+/-2 days.
Observers located in the southern hemisphere may find this object to be a
rewarding target for study. Its current apparition comes to an end in about
August but the next one (2013 March - 2013 September inclusive) will be
favourable.  Perihelion occurs near solar conjunction in 2014 March and it
then moves northwards occupying a similar region of the sky to its famous
2007 apparition.

Given that the 2007 superoutburst was much more energetic than its outburst
on the occasion of its discovery in 1892, the physical integrity of the
cometary nucleus may have been compromised in some way so we may have to
expect the unexpected from this object during the next few years.

Assistance from the Faulkes Telescope Project led by Dr Paul Roche is
gratefully acknowledged (see for example:
http://en.wikipedia.org/wiki/Faulkes_Telescope_Project ) and without which
none of this work would have been possible.

Richard Miles
BAA



------------------------------------

Comet Observations List: http://groups.yahoo.com/group/CometObs/
Comet Images List: http://groups.yahoo.com/group/Comet-Images/

NOTICE: Material quoted or re-posted from the Comets Mailing List should be
indicated by:

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http://www.yahoogroups.com/group/comets-ml
Yahoo! Groups Links




[Non-text portions of this message have been removed]

Reply | Messages in this Topic (7)
#19623 From: "terryjlovejoy" <terryjlovejoy@...>
Date: Sun May 20, 2012 7:38 am
Subject: Re: 71P, 96P, C/2011 U3 		terryjlovejoy
Send Email Send Email
  
Hi Seiichi,

From my survey images:

May 16.8 : 71P at detection limit of 12 second exposures with 8" f2.  Visual mag
~14.

May 19.8:
96P not visible (likely fainter than mag 14)
C/2011 R1 condensed and easily visible at mag 13
C/2011 U3 still too low for my location

Terry

--- In comets-ml@yahoogroups.com, Seiichi Yoshida <comet@...> wrote:
>
> Dear colleagues,
>
> The following comets have not been observed recently. They are
> observable in the Southern Hemisphere.
>
> 71P/Clark
> 96P/Machholz 1
> C/2011 U3 ( PanSTARRS )
>
>   http://www.aerith.net/comet/weekly/current.html
>
> Best regards,
>
> --
> Seiichi Yoshida
> comet@...
> http://www.aerith.net/
>

Reply | Messages in this Topic (3)
#19624 From: Seiichi Yoshida <comet@...>
Date: Sun May 20, 2012 11:26 am
Subject: Re: Re: 71P, 96P, C/2011 U3 		seiichi_yosh...
Send Email Send Email
  
Dear Terry Lovejoy,

Thank you very much for your report!

I updated the light curves of 71P and 96P in my web pages.

It's nice that 71P is still bright as expected :-)

P.S.
I also updated the light curve of 17P/Holmes. Richard Miles, thank you
for your report!

Best regards,

> Hi Seiichi,
>
> From my survey images:
>
> May 16.8 : 71P at detection limit of 12 second exposures with 8" f2.  Visual
mag ~14.
>
> May 19.8:
> 96P not visible (likely fainter than mag 14)
> C/2011 R1 condensed and easily visible at mag 13
> C/2011 U3 still too low for my location
>
> Terry
>
> --- In comets-ml@yahoogroups.com, Seiichi Yoshida <comet@...> wrote:
> >
> > Dear colleagues,
> >
> > The following comets have not been observed recently. They are
> > observable in the Southern Hemisphere.
> >
> > 71P/Clark
> > 96P/Machholz 1
> > C/2011 U3 ( PanSTARRS )
> >
> >   http://www.aerith.net/comet/weekly/current.html
> >
> > Best regards,
> >
> > --
> > Seiichi Yoshida
> > comet@...
> > http://www.aerith.net/
> >

--
Seiichi Yoshida
comet@...
http://www.aerith.net/

Reply | Messages in this Topic (3)
#19625 From: Luca Buzzi <lucabuzzi.204@...>
Date: Sun May 20, 2012 2:47 pm
Subject: New comet C/2011 KP36 (Spacewatch) 		buzzi_luca
Send Email Send Email
  
http://schiaparelli204.wordpress.com/

Dear all,
at the link above you can see some information and images about this new
discovery.

Regards,
Luca Buzzi
# 204

Reply | Messages in this Topic (1)
#19626 From: Luca Buzzi <lucabuzzi.204@...>
Date: Sun May 20, 2012 4:48 pm
Subject: Re: A new outburst of Comet 17P/Holmes 		buzzi_luca
Send Email Send Email
  
Dear Richard,
thank you for this valuable study, well done.

Best regards,
Luca Buzzi
# 204



Il 19/05/2012 23:15, RICHARD MILES ha scritto:
> Comet 17P/Holmes is a fascinating comet having drawn our attention bigtime
> when it underwent a superoutburst brightening ~14 magnitudes on 2007 October
> 24. Interestingly, although its activity subsided, it did exhibit a clear
> outburst on 2009 Jan 04. The exact date is known thanks to monitoring by
> Luca Buzzi at Schiaparelli Obs. and by Richard Miles and George Faillace
> using the 2.0-m Faulkes Telescope North. The photometry can be seen here:
>
> http://www.britastro.org/~rmiles/Images/17P_2008-9_photometry.png
>
> In 2010 October, the comet reached aphelion at r = 5.188 AU and since then
> it has been approaching the Sun at an ever-increasing rate.
>
> The latest news is that although the cometary nucleus is still about 4.4 AU
> from the Sun, it has just undergone another distinct outburst, brightening
> by some 1.3 magnitudes as observed using the 2.0-m Faulkes Telescope South.
> Here is the photometry as measured using an aperture radius of 2.4":
>
> Date R mag
> Apr 13 21.1
> Apr 19 20.9
> May 15 19.7
> May 17 20.1
> May 18 20.2
>
> The outburst probably occurred on 2012 May 12+/-2 as deduced from images
> taken on each of the above 5 epochs. See:
>
> http://www.britastro.org/~rmiles/Images/17P_2012May_outburstA.png
>
> Comet Holmes has some unusual characteristics. It is likely to be a very
> slow rotator: one unofficial estimate is a rotation period of 44+/-2 days.
> Observers located in the southern hemisphere may find this object to be a
> rewarding target for study. Its current apparition comes to an end in about
> August but the next one (2013 March - 2013 September inclusive) will be
> favourable. Perihelion occurs near solar conjunction in 2014 March and it
> then moves northwards occupying a similar region of the sky to its famous
> 2007 apparition.
>
> Given that the 2007 superoutburst was much more energetic than its outburst
> on the occasion of its discovery in 1892, the physical integrity of the
> cometary nucleus may have been compromised in some way so we may have to
> expect the unexpected from this object during the next few years.
>
> Assistance from the Faulkes Telescope Project led by Dr Paul Roche is
> gratefully acknowledged (see for example:
> http://en.wikipedia.org/wiki/Faulkes_Telescope_Project ) and without which
> none of this work would have been possible.
>
> Richard Miles
> BAA
>
>

Reply | Messages in this Topic (7)
#19627 From: walcom77 <walcom77@...>
Date: Thu May 24, 2012 9:44 am
Subject: New Comet: P/2012 K3 (GIBBS) 		walcom77
Send Email Send Email
  
Hi All

We just updated the blog with our confirmation image and info of newly
discovered comet P/2012 K3 (GIBBS):

http://bit.ly/MJnRPv

Ciao,
Ernesto Guido, Nick Howes and Giovanni Sostero
http://remanzacco.blogspot.com
http://twitter.com/comets77

Reply | Messages in this Topic (1)
#19628 From: walcom77 <walcom77@...>
Date: Fri May 25, 2012 7:21 pm
Subject: Recovery of comet P/2005 N3 = 2012 K4 (Larson) 		walcom77
Send Email Send Email
  
Hi All

We just updated the blog with info and image about our recovery of
comet P/2005 N3 (LARSON):

http://bit.ly/LAFDlQ

Before the recovery this comet was last observed on 2005, December 02.

Ciao,
Ernesto Guido, Giovanni Sostero and Nick Howes
http://remanzacco.blogspot.com
http://twitter.com/comets77

Reply | Messages in this Topic (2)
#19629 From: Erik Bryssinck <erik.bryssinck@...>
Date: Fri May 25, 2012 9:07 pm
Subject: Re: Recovery of comet P/2005 N3 = 2012 K4 (Larson) 		good4me_be
Send Email Send Email
  
Congratulations with the recovery !


__________________________________

kind regards,

Erik Bryssinck

Brixiis Observatory (B96) - Kruibeke - Belgium
http://www.astronomie.be/erik.bryssinck/
__________________________________
http://cara.uai.it - Cometary Archive for Af(Rho)
http://www.vvs.be - Belgian Association for Amateur Astronomers

----- Oorspronkelijk e-mail -----

Van: "walcom77" <walcom77@...>
Aan: comets-ml@yahoogroups.com
Verzonden: Vrijdag 25 mei 2012 21:21:01
Onderwerp: [comets-ml] Recovery of comet P/2005 N3 = 2012 K4 (Larson)





Hi All

We just updated the blog with info and image about our recovery of
comet P/2005 N3 (LARSON):

http://bit.ly/LAFDlQ

Before the recovery this comet was last observed on 2005, December 02.

Ciao,
Ernesto Guido, Giovanni Sostero and Nick Howes
http://remanzacco.blogspot.com
http://twitter.com/comets77



[Non-text portions of this message have been removed]

Reply | Messages in this Topic (2)
#19630 From: "Dave Herald" <drherald@...>
Date: Sun May 27, 2012 3:54 pm
Subject: Recovery of 189P NEAT 		dave_herald
Send Email Send Email
  
I’ve just posted some images of my recovery of 189P NEAT  tonight. They are
at:
http://tinyurl.com/6txvhcn
The comet is at about mag 18. The field is fairly crowded – and there is no
convincing evidence of any tail. The image size is about 3 arc mins across.

Dave Herald
Murrumbateman, Australia



[Non-text portions of this message have been removed]

Reply | Messages in this Topic (1)
#19631 From: "Richard" <rmiles.btee@...>
Date: Mon May 28, 2012 10:00 pm
Subject: Comet / Asteroids Meeting announcement 		gallileo99uk
Send Email Send Email
  
To members of the Comets Mailing List (comets-ml)
You may be interested in this forthcoming meeting

"OBSERVING PROJECTS WITH ASTEROID-COMET CONNECTIONS"
A joint meeting of the Comet Section and Asteroids and Remote
Planets Section of the BAA

at 10.00-17.00 hrs on Saturday, 2012 October 6
at the Berrill Lecture Theatre, Berrill Building, The Open University,
Walton Hall, Milton Keynes MK7 6AA, United Kingdom

Topics to include:

* Methods in common for observing asteroids and comets
* Discovering comets and asteroids
* Comets masquerading as asteroids
* Asteroids masquerading as comets
* Water ice in asteroids
* Short contributions from members

In addition, there will be keynote lectures by:

Dr Simon Green of The Open University
Dr Stephen Lowry and Dr Sam Duddy
of The University of Kent, Canterbury

Anyone wishing to contribute a short talk should contact Richard Miles or Guy
Hurst.

Travel directions to the Berrill Building can be found at:
http://www3.open.ac.uk/contact/locations.aspx
along with a map of the campus at:
http://www3.open.ac.uk/contact/maps/wh-campus.gif

More details of the programme will be made available in August.

Richard Miles
arps [at] britastro.org

Guy Hurst
guy [at] tahq.demon.co.uk

British Astronomical Association

Reply | Messages in this Topic (1)
#19632 From: walcom77 <walcom77@...>
Date: Tue May 29, 2012 10:58 am
Subject: New Comet C/2012 K5 (LINEAR) 		walcom77
Send Email Send Email
  
Hi All

We just updated the blog with our confirmation image and info about
the newly discovered comet C/2012 K5 (LINEAR):

http://bit.ly/LazjPX

Ciao,
Ernesto Guido, Giovanni Sostero and Nick Howes
http://remanzacco.blogspot.com
http://twitter.com/comets77

Reply | Messages in this Topic (2)
#19633 From: Soulier Jean-François <jeffcomete@...>
Date: Tue May 29, 2012 11:54 am
Subject: Re : New Comet C/2012 K5 (LINEAR) 		jeffcomete
Send Email Send Email
  
Good morning.
 
C 2012 K5 Linear (+gif)
http://6888comete.free.fr/fr/imageC2012K5Linearfrance.htm
 
Sincerely.
SOULIER Jean-François
C10/France



________________________________
De : walcom77 <walcom77@...>
À : comets-ml@yahoogroups.com
Envoyé le : Mardi 29 mai 2012 12h58
Objet : [comets-ml] New Comet C/2012 K5 (LINEAR)


 
Hi All

We just updated the blog with our confirmation image and info about
the newly discovered comet C/2012 K5 (LINEAR):

http://bit.ly/LazjPX

Ciao,
Ernesto Guido, Giovanni Sostero and Nick Howes
http://remanzacco.blogspot.com
http://twitter.com/comets77



[Non-text portions of this message have been removed]

Reply | Messages in this Topic (2)
#19634 From: "Hidetaka" <sedna_90377@...>
Date: Wed May 30, 2012 3:40 am
Subject: Recovery of 185P/Petriew 		sedna_90377
Send Email Send Email
  
Hi,

I recovered 185P at May 27 and confirmed it at May 29.
m1 = 18.6 to 18.7, diffuse object.
The location was 1.4' W and 0.3' S from the predicted position.

https://picasaweb.google.com/104133965506763777371/PICASA#5748163525696514354

Hidetaka Sato
Tokyo Japan

Reply | Messages in this Topic (1)
#19635 From: Seiichi Yoshida <comet@...>
Date: Fri Jun 1, 2012 1:54 am
Subject: Interesting rendezvous in June 		seiichi_yosh...
Send Email Send Email
  
Dear colleagues,

Several interesting rendezvous events will occur in June.

For other rendezvous events, please see:
   http://www.aerith.net/comet/rendezvous/current.html

* 96P will pass near by Orion Nebula.

2012 June 30   8h UT  2.217 deg (133.0 arcmin)
   96P/Machholz 1  05h29m.8  -03o43'   9.4 mag
   M42 (Nb) 66' 	 05h35m.4  -05o27'   4.0 mag

2012 June 30  10h UT  2.105 deg (126.3 arcmin)
   96P/Machholz 1  05h30m.5  -03o36'   9.4 mag
   M43 (Nb) 20' 	 05h35m.6  -05o16'   9.0 mag

* (596) Scheila will pass through Globular Cluster M80.

2012 June 17   1h UT  0.017 deg (  1.0 arcmin)
   (596) Scheila 	 16h17m.1  -23o00'  12.2 mag
   M80 (Gb) 5' 	 16h17m.1  -22o59'   7.7 mag

* 189P will pass near by Globular Cluster M69.

2012 June 30   6h UT  0.119 deg (  7.1 arcmin)
   189P/NEAT 	 18h30m.9  -32o18'  15.7 mag
   M69 (Gb) 7.1' 	 18h31m.4  -32o21'   7.7 mag

Best regards,

--
Seiichi Yoshida
comet@...
http://www.aerith.net/

Reply | Messages in this Topic (5)
#19636 From: walcom77 <walcom77@...>
Date: Fri Jun 1, 2012 10:41 am
Subject: Recovery of comet P/1994 X1 (McNaught-Russell) 		walcom77
Send Email Send Email
  
Hi All

We just updated the blog with info and image about our recovery of
comet P/1994 X1 (McNaught-Russell):

http://bit.ly/L1Zbzz

Before the recovery this comet was last observed on 1995, April 17.

Ciao,
Ernesto Guido, Giovanni Sostero, Nick Howes & Erik Bryssinck
http://remanzacco.blogspot.com
http://twitter.com/comets77

Reply | Messages in this Topic (1)
#19637 From: "Sárneczky, Krisztián" <sky@...>
Date: Mon Jun 4, 2012 5:41 am
Subject: HB and C/2012 K5 		sky@...
Send Email Send Email
  
Hmmm. Is C/2012 K5 a little fragment of HB? Peri, node adn incl are very
similar, but HB has prograde orbit, K5 has retrograde orbit.

C/1995 O1 (Hale-Bopp)
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5
T 1997 Mar. 31.0802 TT                                  MPC
q   0.908720             (2000.0)            P               Q
z  +0.005576       Peri.  130.5601      -0.1313037      -0.1665814
  +/-0.000000       Node   282.2358      +0.2821421      +0.9387339
e   0.994933       Incl.   89.4979      +0.9503448      -0.3017106

C/2012 K5 (LINEAR)
Epoch 2012 Dec. 19.0 TT = JDT 2456280.5
T 2012 Nov. 29.1614 TT                                  MPC
q   1.121690             (2000.0)            P               Q
z  +0.013853       Peri.  140.4042      -0.1462358      -0.0627887
  +/-0.003950       Node   278.7836      +0.4413646      +0.8890071
e   0.984461       Incl.   92.5996      +0.8853318      -0.4535680
>From 140 observations 2012 May 25-June 1, mean residual 0".6.


Cheers,
Krisztian

Reply | Messages in this Topic (4)
#19638 From: Alan Hale <ahale@...>
Date: Mon Jun 4, 2012 3:16 pm
Subject: Re: HB and C/2012 K5 		ahale15
Send Email Send Email
  
Dear Krisztian, and all,

I had noticed this basic similarity back when C/2012 K5 was still on the
NEOCP. I had tentatively dismissed it at the time, not only because of the
difference in Arg. of Perihelion, but also (IIRC) the difference in the
ascending node. However, with the latest orbit the node crossing is
different by less than 4 degrees . . . Meanwhile, I'm not too concerned in
the difference between retrograde and prograde, since the difference in
inclination itself is only 3 degrees.

Someone with a lot more knowledge of orbital dynamics than I have will have
to address this, but I would say at this point that the situation is at
least . . . "interesting."


Sincerely,

Alan

Reply | Messages in this Topic (4)
#19639 From: "Sárneczky, Krisztián" <sky@...>
Date: Mon Jun 4, 2012 5:48 pm
Subject: Re: HB and C/2012 K5 [Caution: Message contains Suspicious URL content] 		sky@...
Send Email Send Email
  
Dear Alan,

It is possible?

CD07546 12.7  0.15  K1262 359.94415  136.66226  271.80044   87.20842
0.9898737  0.00027621 233.5117464                 33   1    3 days 0.49
  NEOCPNomin


Sincerely,

Krisztián


> Dear Krisztian, and all,
>
> I had noticed this basic similarity back when C/2012 K5 was still on the
> NEOCP. I had tentatively dismissed it at the time, not only because of the
> difference in Arg. of Perihelion, but also (IIRC) the difference in the
> ascending node. However, with the latest orbit the node crossing is
> different by less than 4 degrees . . . Meanwhile, I'm not too concerned in
> the difference between retrograde and prograde, since the difference in
> inclination itself is only 3 degrees.
>
> Someone with a lot more knowledge of orbital dynamics than I have will have
> to address this, but I would say at this point that the situation is at
> least . . . "interesting."
>
>
> Sincerely,
>
> Alan
>
>
>
>

Reply | Messages in this Topic (4)
#19640 From: "Maik Meyer" <maik@...>
Date: Mon Jun 4, 2012 6:41 pm
Subject: Re: HB and C/2012 K5 [Caution: Message contains Suspicious URL content] 		maiki666
Send Email Send Email
  
Hello Kris, and all,

> CD07546 12.7  0.15  K1262 359.94415  136.66226  271.80044   87.20842
> 0.9898737  0.00027621 233.5117464                 33   1    3 days 0.49
>  NEOCPNomin

nice coincidence. ;) But here q is far off at about 2.4 AU. ;)

I am no expert on orbit dynamics (although fascinated by it) and can't say
whether
a genetic relation between C/1995 O1 and C/2012 K5 is possible (if anyone else
could, that is), but I think this depends strongly on the conditions during
splitting.

You may remember C/1988 A1 (Liller) and C/1996 Q1 (Tabur)? Separated by 8 years
the differences in the angular elements were below one degree! Or even better,
take C/1980 Y1 (Panther) and C/1998 M5 (LINEAR): Separated by 18 years their
angular elements differ by 4 degrees in peri and 1.5 degrees in node and below
one
degree in i! (Btw, the latter had even almost similar perihelion dates during
the
year which lead to a similar path in the sky...)

So, with 1995 Q1 and 2012 K5 the differences are a bit larger, but maybe the
splitting conditions were different... or there wasn't any splitting at all.

Cheers, Maik
--
If they give you ruled paper, write the other way.  * Juan Ramon Jimenez
________________________________________________________________________
        maik@...          http://www.comethunter.de
International Comet Quarterly    http://cfa-www.harvard.edu/icq/icq.html
             http://groups.yahoo.com/group/comets-ml

Reply | Messages in this Topic (4)
#19641 From: "Maik Meyer" <maik@...>
Date: Wed Jun 6, 2012 5:17 am
Subject: Another one ;) C/1785 A1 and C/2012 L2 		maiki666
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Hello all,

it seems we have a flurry of chance coincidences:

C/1785 A1 (Messier-Mechain)

Perihelion: 1785 Jan. 27.825
q     1.14340
Peri. 205.632
Node  267.214
Incl.  70.238

C/2012 L2 backwards integrated and forced for perihelion date:

C/2012 L2 (LINEAR)
    Perihelion 1785 Jan 26.628135 TT = 15:04:30 (JD 2373044.128135)
Epoch 1785 Jun  3.0 TT = JDT 2373171.5   Earth MOID: 0.3754
M   0.55555              (2000.0)            P               Q
n   0.00436171     Peri.  214.31424     -0.13385691     -0.28889573
a  37.0992111      Node   267.00209      0.97813266     -0.19216555
e   0.9664439      Incl.   71.66903     -0.15918169     -0.93787614
P 225.97           M(T)  9.3    K  10.0   q 1.24490171  Q 72.9535205
From 32 observations 2012 June 1-5; mean residual 0".486.


To make it clear: I think this is a chance coincidence. Future refinements of
the
orbit will quickly show this, I guess.

Kind regards, Maik
--
If they give you ruled paper, write the other way.  * Juan Ramon Jimenez
________________________________________________________________________
        maik@...          http://www.comethunter.de
International Comet Quarterly    http://cfa-www.harvard.edu/icq/icq.html
             http://groups.yahoo.com/group/comets-ml

Reply | Messages in this Topic (1)
#19642 From: "Dave Herald" <drherald@...>
Date: Fri Jun 8, 2012 3:28 pm
Subject: 105P 'recovered' 		dave_herald
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The last reported position for this comet was 2011 Mar 7. It was at perihelion
this February 26. I have just imaged the comet at mag 19-5 – 20.0. Offset from
prediction was 0.2 arc mins.


Dave Herald
Murrumbateman, Australia



[Non-text portions of this message have been removed]

Reply | Messages in this Topic (1)
#19643 From: "Michael Mattiazzo" <mmatti@...>
Date: Sun Jun 10, 2012 1:24 pm
Subject: C/2011 U3 PANSTARRS negative obs June 10 2012 		cometmanau
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Hi all,

C/2011 U3 PANSTARRS
Is not observable at its nominal position on a CCD image, when stars to
magnitude 17.0 are seen.
This comet is intrinsically very faint (M0=14) and may not have survived its
perihelion passage,
which occurred on June 3 at 1.07AU.
Alternatively, the orbit is not well known and it may lie outside the field
of view.
I have uploaded an image to my website.
2012 June 10 at 9:15UT.
15x10second exposures. C11 SCT and Starlight Express MX7c CCD imager.

http://members.westnet.com.au/mmatti/sc.htm

cheers,
Michael Mattiazzo
Castlemaine Victoria

Reply | Messages in this Topic (1)
#19644 From: "Pieter-Jan Dekelver" <pieterjan.dekelver@...>
Date: Sun Jun 10, 2012 7:10 pm
Subject: Observations Comets 24 - 29/05/2012 		pieterjan87
Send Email Send Email
  
Hello,



Attached all my observations of comets true the nights of 24 / 05 until
29/05



The pictures on the website will follow later.



---------------------------------------------------



Best Regards,



Mr. Pieter-Jan Dekelver

Maasmechelen, Belgium

pieterjan.dekelver@...

www.astronomie.be/pieterjan.dekelver




   ----------

COD X13
COM Long. 5 40 46.6 E, Lat. 50 56 30.1 N, Alt. 20m
CON Pieter-Jan Dekelver, Observatory Grömme, Heirstraat 496, Maasmechelen 3630,
Belgium [pieterjan.dekelver@...]
OBS P-J Dekelver
MEA P-J Dekelver
TEL 0.20m f/4.5 Refl + CCD
ACK MPCReport file updated 2012.06.04 21:23:28
AC2 pieterjan.dekelver@...
NET UCAC-3
0246P        KC2012 05 25.92847 12 51 06.251+12 45 19.65         14.91N      X13
0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N      X13
0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N      X13
0246P        KC2012 05 25.92847 12 51 06.230+12 45 19.79         14.93N      X13
0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N      X13
0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N      X13
     CK11L040 KC2012 05 24.98853 16 15 35.056-25 54 11.75         13.31N      X13
     CK11L040 KC2012 05 24.99529 16 15 34.584-25 54 12.23         13.26N      X13
     CK11L040 KC2012 05 25.00431 16 15 33.930-25 54 12.14         13.29N      X13
     CK11L040 KC2012 05 25.98221 16 14 22.172-25 54 24.62         13.20N      X13
     CK11L040 KC2012 05 25.98897 16 14 21.612-25 54 25.40         13.19N      X13
     CK11L040 KC2012 05 25.99798 16 14 20.911-25 54 24.78         13.20N      X13
     CK11L040 KC2012 05 27.00657 16 13 06.388-25 54 33.83         13.21N      X13
     CK11L040 KC2012 05 27.01107 16 13 05.966-25 54 34.44         13.28N      X13
     CK11L040 KC2012 05 27.01558 16 13 05.690-25 54 34.68         13.49N      X13
     CK11L040 KC2012 05 29.00479 16 10 37.177-25 54 41.53         13.17N      X13
     CK11L040 KC2012 05 29.00930 16 10 36.882-25 54 41.81         13.10N      X13
     CK11L040  C2012 05 29.01268 16 10 36.649-25 54 42.08         13.05N      X13
     CK10R010 KC2012 05 26.01245 15 09 00.180+08 11 06.75         16.57N      X13
     CK10R010 KC2012 05 26.01922 15 08 59.615+08 11 07.76         16.92N      X13
     CK10R010 KC2012 05 26.02825 15 08 58.905+08 11 08.94         16.56N      X13
     CK11F010 KC2012 05 26.06632 14 28 59.331+54 12 33.81         14.98N      X13
     CK11F010 KC2012 05 26.07308 14 28 58.906+54 12 29.24         15.02N      X13
     CK11F010 KC2012 05 26.07872 14 28 58.484+54 12 25.38         15.10N      X13
     CK11F010 KC2012 05 27.04774 14 27 48.675+54 01 36.23         14.83N      X13
     CK11F010 KC2012 05 27.05452 14 27 48.143+54 01 31.65         14.93N      X13
     CK11F010 KC2012 05 27.06355 14 27 47.521+54 01 25.35         15.02N      X13
     CK11F010 KC2012 05 28.91247 14 25 38.130+53 39 48.50         14.90N      X13
     CK11F010 KC2012 05 28.91924 14 25 37.694+53 39 43.71         14.92N      X13
     CK11F010 KC2012 05 28.92827 14 25 37.029+53 39 37.32         14.92N      X13
     CK06S030 KC2012 05 26.03784 16 57 39.379-12 42 31.12         14.12N      X13
     CK06S030 KC2012 05 26.04471 16 57 38.749-12 42 30.68         14.13N      X13
     CK06S030 KC2012 05 26.05374 16 57 37.910-12 42 29.80         14.14N      X13
0117P        KC2012 05 26.91962 10 55 31.504+15 50 48.59         17.47N      X13
0117P        KC2012 05 26.92638 10 55 31.692+15 50 46.37         17.19N      X13
0117P        KC2012 05 26.93541 10 55 31.779+15 50 44.13         17.05N      X13
     CK09P010 KC2012 05 26.88210 08 54 27.588+27 49 16.60         13.46N      X13
     CK09P010 KC2012 05 26.89183 08 54 27.755+27 49 04.83         13.42N      X13
     CK09P010 KC2012 05 26.90281 08 54 28.047+27 48 51.71         13.53N      X13
     CK10S010 KC2012 05 27.07455 23 27 32.958+52 51 34.39         15.02N      X13
     CK10S010 KC2012 05 27.08133 23 27 32.819+52 51 37.13         14.94N      X13
     CK10S010 KC2012 05 27.09036 23 27 32.628+52 51 39.59         14.90N      X13
     CK10S010 KC2012 05 29.03128 23 27 06.283+53 02 27.60         14.78N      X13
     CK10S010 KC2012 05 29.03805 23 27 06.292+53 02 29.77         14.87N      X13
     CK10S010 KC2012 05 29.04708 23 27 06.055+53 02 32.68         14.85N      X13

----- end -----

COD X13
CON Pieter-Jan Dekelver, Observatory Grömme
CATALOG: USNO A2.0 / CMC-14 - BAND: R

                                    10x10  20x20  30x30  40x40  50x50  60x60  
SNR   SB   COD
OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-    
N  FWHM  CAT
------------  ---------- --------  -----  -----  -----  -----  -----  ----- 
----  ----  ---
246P          25/05/2012 22:27:49  14.76  14.20  13.99  13.86  13.77  13.71 
13.9  17.8  X13
246P          25/05/2012 22:27:49*  0.04   0.09   0.11   0.10   0.13   0.14    
9   5.4  CMC
246P          25/05/2012 22:28:22  14.77  14.20  13.99  13.86  13.77  13.71 
14.5  17.8  X13
246P          25/05/2012 22:28:22*  0.04   0.08   0.10   0.10   0.13   0.13   
10   5.4  CMC
C/2011 L4     24/05/2012 23:54:50  12.96  12.41  12.22  12.12  12.06  12.03 
14.4  15.3  X13
C/2011 L4     24/05/2012 23:54:50*  0.04   0.06   0.05   0.06   0.06   0.08   
10   5.3  CMC
C/2011 L4     25/05/2012 23:45:44  12.95  12.38  12.22  12.14  12.11  12.08 
19.0  15.8  X13
C/2011 L4     25/05/2012 23:45:44*  0.03   0.05   0.07   0.08   0.09   0.09   
10   5.2  CMC
C/2011 L4     27/05/2012 00:17:34  13.01  12.47  12.28  12.22  12.22  12.07  
9.5  14.6  X13
C/2011 L4     27/05/2012 00:17:34*  0.06   0.05   0.09   0.11   0.12   0.18    
7   5.3  CMC
C/2011 L4     29/05/2012 00:11:46  12.94  12.42  12.27  12.19  12.12  12.08 
17.5  15.4  X13
C/2011 L4     29/05/2012 00:11:46*  0.04   0.03   0.03   0.04   0.06   0.07    
5   5.3  CMC
C/2011 F1     26/05/2012 01:43:36  14.97  14.16  13.80  13.57  13.40  13.31 
10.9  18.2  X13
C/2011 F1     26/05/2012 01:43:36*  0.02   0.06   0.06   0.06   0.06   0.07    
8   5.3  USN
C/2011 F1     27/05/2012 01:20:08  14.95  14.14  13.80  13.60  13.50  13.45 
11.0  17.8  X13
C/2011 F1     27/05/2012 01:20:08*  0.03   0.06   0.08   0.09   0.10   0.12   
10   5.0  USN
C/2011 F1     28/05/2012 22:05:20  14.96  14.17  13.84  13.65  13.55  13.49 
14.5  18.5  X13
C/2011 F1     28/05/2012 22:05:20*  0.02   0.04   0.04   0.05   0.06   0.06   
10   5.1  USN
C/2006 S3     26/05/2012 01:05:57  13.86  13.17  12.89  12.72  12.61  12.54 
15.2  16.9  X13
C/2006 S3     26/05/2012 01:05:57*  0.02   0.05   0.06   0.07   0.08   0.08   
10   5.3  CMC
C/2009 P1     26/05/2012 21:24:50  13.00  12.13  11.71  11.42  11.18  10.99 
15.4  16.4  X13
C/2009 P1     26/05/2012 21:24:50*  0.04   0.06   0.07   0.07   0.07   0.08    
9   5.4  CMC
C/2010 S1     27/05/2012 01:58:44  14.90  14.28  14.06  13.98  14.06  14.14  
8.9  16.3  X13
C/2010 S1     27/05/2012 01:58:44*  0.07   0.10   0.10   0.14   0.24   0.35   
10   5.0  USN
C/2010 S1     29/05/2012 00:56:25  14.75  14.11  13.84  13.71  13.63  13.57 
12.3  17.1  X13
C/2010 S1     29/05/2012 00:56:25*  0.03   0.05   0.07   0.11   0.11   0.13   
10   4.9  USN


FoCAs 3.33
www.astrosurf.com/cometas-obs
es.groups.yahoo.com/group/Cometas_Obs


[Non-text portions of this message have been removed]

Reply | Messages in this Topic (4)
#19645 From: "Pieter-Jan Dekelver" <pieterjan.dekelver@...>
Date: Sun Jun 10, 2012 7:17 pm
Subject: Observations Comets 24 - 29/05/2012 		pieterjan87
Send Email Send Email
  
UPDATED LIST: IGNORE PREVIOUS FILE



Hello,



Attached all my observations of comets true the nights of 24 / 05 until
29/05



The pictures on the website will follow later.



COD X13

COM Long. 5 40 46.6 E, Lat. 50 56 30.1 N, Alt. 20m

CON Pieter-Jan Dekelver, Observatory Grömme, Heirstraat 496, Maasmechelen
3630, Belgium [pieterjan.dekelver@...]

OBS P-J Dekelver

MEA P-J Dekelver

TEL 0.20m f/4.5 Refl + CCD

ACK MPCReport file updated 2012.06.04 21:23:28

AC2 pieterjan.dekelver@...

NET UCAC-3

0246P        KC2012 05 25.92847 12 51 06.251+12 45 19.65         14.91N
X13

0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N
X13

0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N
X13

0246P        KC2012 05 25.92847 12 51 06.230+12 45 19.79         14.93N
X13

0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N
X13

0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N
X13

     CK11L040 KC2012 05 24.98853 16 15 35.056-25 54 11.75         13.31N
X13

     CK11L040 KC2012 05 24.99529 16 15 34.584-25 54 12.23         13.26N
X13

     CK11L040 KC2012 05 25.00431 16 15 33.930-25 54 12.14         13.29N
X13

     CK11L040 KC2012 05 25.98221 16 14 22.172-25 54 24.62         13.20N
X13

     CK11L040 KC2012 05 25.98897 16 14 21.612-25 54 25.40         13.19N
X13

     CK11L040 KC2012 05 25.99798 16 14 20.911-25 54 24.78         13.20N
X13

     CK11L040 KC2012 05 27.00657 16 13 06.388-25 54 33.83         13.21N
X13

     CK11L040 KC2012 05 27.01107 16 13 05.966-25 54 34.44         13.28N
X13

     CK11L040 KC2012 05 27.01558 16 13 05.690-25 54 34.68         13.49N
X13

     CK11L040 KC2012 05 29.00479 16 10 37.177-25 54 41.53         13.17N
X13

     CK11L040 KC2012 05 29.00930 16 10 36.882-25 54 41.81         13.10N
X13

     CK11L040  C2012 05 29.01268 16 10 36.649-25 54 42.08         13.05N
X13

     CK10R010 KC2012 05 26.01245 15 09 00.180+08 11 06.75         16.57N
X13

     CK10R010 KC2012 05 26.01922 15 08 59.615+08 11 07.76         16.92N
X13

     CK10R010 KC2012 05 26.02825 15 08 58.905+08 11 08.94         16.56N
X13

     CK11F010 KC2012 05 26.06632 14 28 59.331+54 12 33.81         14.98N
X13

     CK11F010 KC2012 05 26.07308 14 28 58.906+54 12 29.24         15.02N
X13

     CK11F010 KC2012 05 26.07872 14 28 58.484+54 12 25.38         15.10N
X13

     CK11F010 KC2012 05 27.04774 14 27 48.675+54 01 36.23         14.83N
X13

     CK11F010 KC2012 05 27.05452 14 27 48.143+54 01 31.65         14.93N
X13

     CK11F010 KC2012 05 27.06355 14 27 47.521+54 01 25.35         15.02N
X13

     CK11F010 KC2012 05 28.91247 14 25 38.130+53 39 48.50         14.90N
X13

     CK11F010 KC2012 05 28.91924 14 25 37.694+53 39 43.71         14.92N
X13

     CK11F010 KC2012 05 28.92827 14 25 37.029+53 39 37.32         14.92N
X13

     CK06S030 KC2012 05 26.03784 16 57 39.379-12 42 31.12         14.12N
X13

     CK06S030 KC2012 05 26.04471 16 57 38.749-12 42 30.68         14.13N
X13

     CK06S030 KC2012 05 26.05374 16 57 37.910-12 42 29.80         14.14N
X13

0117P        KC2012 05 26.91962 10 55 31.504+15 50 48.59         17.47N
X13

0117P        KC2012 05 26.92638 10 55 31.692+15 50 46.37         17.19N
X13

0117P        KC2012 05 26.93541 10 55 31.779+15 50 44.13         17.05N
X13

     CK09P010 KC2012 05 26.88210 08 54 27.588+27 49 16.60         13.46N
X13

     CK09P010 KC2012 05 26.89183 08 54 27.755+27 49 04.83         13.42N
X13

     CK09P010 KC2012 05 26.90281 08 54 28.047+27 48 51.71         13.53N
X13

     CK10S010 KC2012 05 27.07455 23 27 32.958+52 51 34.39         15.02N
X13

     CK10S010 KC2012 05 27.08133 23 27 32.819+52 51 37.13         14.94N
X13

     CK10S010 KC2012 05 27.09036 23 27 32.628+52 51 39.59         14.90N
X13

     CK10S010 KC2012 05 29.03128 23 27 06.283+53 02 27.60         14.78N
X13

     CK10S010 KC2012 05 29.03805 23 27 06.292+53 02 29.77         14.87N
X13

     CK10S010 KC2012 05 29.04708 23 27 06.055+53 02 32.68         14.85N
X13

0029P        KC2012 05 26.94598 12 05 01.068-10 23 02.48         18.22N
X13

0029P        KC2012 05 26.95275 12 05 01.710-10 23 04.73         16.47N
X13

0029P        KC2012 05 26.96177 12 05 01.788-10 23 06.18         17.39N
X13

     CK12K050 KC2012 05 28.94988 19 16 13.840+28 34 12.54         17.86N
X13

     CK12K050 KC2012 05 28.96791 19 16 12.481+28 34 43.97         16.99N
X13

     CK12K050 KC2012 05 28.98819 19 16 10.837+28 35 17.59         16.71N
X13





----- end -----



COD X13

CON Pieter-Jan Dekelver, Observatory Grömme

CATALOG: USNO A2.0 / CMC-14 - BAND: R



                                    10x10  20x20  30x30  40x40  50x50  60x60
SNR   SB   COD

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-
N  FWHM  CAT

------------  ---------- --------  -----  -----  -----  -----  -----  -----
----  ----  ---

246P          25/05/2012 22:27:49  14.76  14.20  13.99  13.86  13.77  13.71
13.9  17.8  X13

246P          25/05/2012 22:27:49*  0.04   0.09   0.11   0.10   0.13   0.14
9   5.4  CMC

246P          25/05/2012 22:28:22  14.77  14.20  13.99  13.86  13.77  13.71
14.5  17.8  X13

246P          25/05/2012 22:28:22*  0.04   0.08   0.10   0.10   0.13   0.13
10   5.4  CMC

C/2011 L4     24/05/2012 23:54:50  12.96  12.41  12.22  12.12  12.06  12.03
14.4  15.3  X13

C/2011 L4     24/05/2012 23:54:50*  0.04   0.06   0.05   0.06   0.06   0.08
10   5.3  CMC

C/2011 L4     25/05/2012 23:45:44  12.95  12.38  12.22  12.14  12.11  12.08
19.0  15.8  X13

C/2011 L4     25/05/2012 23:45:44*  0.03   0.05   0.07   0.08   0.09   0.09
10   5.2  CMC

C/2011 L4     27/05/2012 00:17:34  13.01  12.47  12.28  12.22  12.22  12.07
9.5  14.6  X13

C/2011 L4     27/05/2012 00:17:34*  0.06   0.05   0.09   0.11   0.12   0.18
7   5.3  CMC

C/2011 L4     29/05/2012 00:11:46  12.94  12.42  12.27  12.19  12.12  12.08
17.5  15.4  X13

C/2011 L4     29/05/2012 00:11:46*  0.04   0.03   0.03   0.04   0.06   0.07
5   5.3  CMC

C/2011 F1     26/05/2012 01:43:36  14.97  14.16  13.80  13.57  13.40  13.31
10.9  18.2  X13

C/2011 F1     26/05/2012 01:43:36*  0.02   0.06   0.06   0.06   0.06   0.07
8   5.3  USN

C/2011 F1     27/05/2012 01:20:08  14.95  14.14  13.80  13.60  13.50  13.45
11.0  17.8  X13

C/2011 F1     27/05/2012 01:20:08*  0.03   0.06   0.08   0.09   0.10   0.12
10   5.0  USN

C/2011 F1     28/05/2012 22:05:20  14.96  14.17  13.84  13.65  13.55  13.49
14.5  18.5  X13

C/2011 F1     28/05/2012 22:05:20*  0.02   0.04   0.04   0.05   0.06   0.06
10   5.1  USN

C/2006 S3     26/05/2012 01:05:57  13.86  13.17  12.89  12.72  12.61  12.54
15.2  16.9  X13

C/2006 S3     26/05/2012 01:05:57*  0.02   0.05   0.06   0.07   0.08   0.08
10   5.3  CMC

C/2009 P1     26/05/2012 21:24:50  13.00  12.13  11.71  11.42  11.18  10.99
15.4  16.4  X13

C/2009 P1     26/05/2012 21:24:50*  0.04   0.06   0.07   0.07   0.07   0.08
9   5.4  CMC

C/2010 S1     27/05/2012 01:58:44  14.90  14.28  14.06  13.98  14.06  14.14
8.9  16.3  X13

C/2010 S1     27/05/2012 01:58:44*  0.07   0.10   0.10   0.14   0.24   0.35
10   5.0  USN

C/2010 S1     29/05/2012 00:56:25  14.75  14.11  13.84  13.71  13.63  13.57
12.3  17.1  X13

C/2010 S1     29/05/2012 00:56:25*  0.03   0.05   0.07   0.11   0.11   0.13
10   4.9  USN

29P           26/05/2012 22:47:37  16.10  15.45  15.06  14.70  14.27  13.99
5.8  16.2  X13

29P           26/05/2012 22:47:37*  0.29   0.11   0.03   0.10   0.06   0.06
3   5.4  CMC

C/2012 K5     28/05/2012 23:14:43  16.61  16.37  16.25
6.3  17.5  XXX

C/2012 K5     28/05/2012 23:14:43*  0.29   0.41   0.46
7   5.1  CM



FoCAs 3.33

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

---------------------------------------------------



Best Regards,



Mr. Pieter-Jan Dekelver

Maasmechelen, Belgium

pieterjan.dekelver@...

www.astronomie.be/pieterjan.dekelver




   ----------

COD X13
COM Long. 5 40 46.6 E, Lat. 50 56 30.1 N, Alt. 20m
CON Pieter-Jan Dekelver, Observatory Grömme, Heirstraat 496, Maasmechelen 3630,
Belgium [pieterjan.dekelver@...]
OBS P-J Dekelver
MEA P-J Dekelver
TEL 0.20m f/4.5 Refl + CCD
ACK MPCReport file updated 2012.06.04 21:23:28
AC2 pieterjan.dekelver@...
NET UCAC-3
0246P        KC2012 05 25.92847 12 51 06.251+12 45 19.65         14.91N      X13
0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N      X13
0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N      X13
0246P        KC2012 05 25.92847 12 51 06.230+12 45 19.79         14.93N      X13
0246P        KC2012 05 25.93524 12 51 06.172+12 45 16.86         14.91N      X13
0246P        KC2012 05 25.94426 12 51 06.126+12 45 13.57         14.97N      X13
     CK11L040 KC2012 05 24.98853 16 15 35.056-25 54 11.75         13.31N      X13
     CK11L040 KC2012 05 24.99529 16 15 34.584-25 54 12.23         13.26N      X13
     CK11L040 KC2012 05 25.00431 16 15 33.930-25 54 12.14         13.29N      X13
     CK11L040 KC2012 05 25.98221 16 14 22.172-25 54 24.62         13.20N      X13
     CK11L040 KC2012 05 25.98897 16 14 21.612-25 54 25.40         13.19N      X13
     CK11L040 KC2012 05 25.99798 16 14 20.911-25 54 24.78         13.20N      X13
     CK11L040 KC2012 05 27.00657 16 13 06.388-25 54 33.83         13.21N      X13
     CK11L040 KC2012 05 27.01107 16 13 05.966-25 54 34.44         13.28N      X13
     CK11L040 KC2012 05 27.01558 16 13 05.690-25 54 34.68         13.49N      X13
     CK11L040 KC2012 05 29.00479 16 10 37.177-25 54 41.53         13.17N      X13
     CK11L040 KC2012 05 29.00930 16 10 36.882-25 54 41.81         13.10N      X13
     CK11L040  C2012 05 29.01268 16 10 36.649-25 54 42.08         13.05N      X13
     CK10R010 KC2012 05 26.01245 15 09 00.180+08 11 06.75         16.57N      X13
     CK10R010 KC2012 05 26.01922 15 08 59.615+08 11 07.76         16.92N      X13
     CK10R010 KC2012 05 26.02825 15 08 58.905+08 11 08.94         16.56N      X13
     CK11F010 KC2012 05 26.06632 14 28 59.331+54 12 33.81         14.98N      X13
     CK11F010 KC2012 05 26.07308 14 28 58.906+54 12 29.24         15.02N      X13
     CK11F010 KC2012 05 26.07872 14 28 58.484+54 12 25.38         15.10N      X13
     CK11F010 KC2012 05 27.04774 14 27 48.675+54 01 36.23         14.83N      X13
     CK11F010 KC2012 05 27.05452 14 27 48.143+54 01 31.65         14.93N      X13
     CK11F010 KC2012 05 27.06355 14 27 47.521+54 01 25.35         15.02N      X13
     CK11F010 KC2012 05 28.91247 14 25 38.130+53 39 48.50         14.90N      X13
     CK11F010 KC2012 05 28.91924 14 25 37.694+53 39 43.71         14.92N      X13
     CK11F010 KC2012 05 28.92827 14 25 37.029+53 39 37.32         14.92N      X13
     CK06S030 KC2012 05 26.03784 16 57 39.379-12 42 31.12         14.12N      X13
     CK06S030 KC2012 05 26.04471 16 57 38.749-12 42 30.68         14.13N      X13
     CK06S030 KC2012 05 26.05374 16 57 37.910-12 42 29.80         14.14N      X13
0117P        KC2012 05 26.91962 10 55 31.504+15 50 48.59         17.47N      X13
0117P        KC2012 05 26.92638 10 55 31.692+15 50 46.37         17.19N      X13
0117P        KC2012 05 26.93541 10 55 31.779+15 50 44.13         17.05N      X13
     CK09P010 KC2012 05 26.88210 08 54 27.588+27 49 16.60         13.46N      X13
     CK09P010 KC2012 05 26.89183 08 54 27.755+27 49 04.83         13.42N      X13
     CK09P010 KC2012 05 26.90281 08 54 28.047+27 48 51.71         13.53N      X13
     CK10S010 KC2012 05 27.07455 23 27 32.958+52 51 34.39         15.02N      X13
     CK10S010 KC2012 05 27.08133 23 27 32.819+52 51 37.13         14.94N      X13
     CK10S010 KC2012 05 27.09036 23 27 32.628+52 51 39.59         14.90N      X13
     CK10S010 KC2012 05 29.03128 23 27 06.283+53 02 27.60         14.78N      X13
     CK10S010 KC2012 05 29.03805 23 27 06.292+53 02 29.77         14.87N      X13
     CK10S010 KC2012 05 29.04708 23 27 06.055+53 02 32.68         14.85N      X13
0029P        KC2012 05 26.94598 12 05 01.068-10 23 02.48         18.22N      X13
0029P        KC2012 05 26.95275 12 05 01.710-10 23 04.73         16.47N      X13
0029P        KC2012 05 26.96177 12 05 01.788-10 23 06.18         17.39N      X13
     CK12K050 KC2012 05 28.94988 19 16 13.840+28 34 12.54         17.86N      X13
     CK12K050 KC2012 05 28.96791 19 16 12.481+28 34 43.97         16.99N      X13
     CK12K050 KC2012 05 28.98819 19 16 10.837+28 35 17.59         16.71N      X13


----- end -----

COD X13
CON Pieter-Jan Dekelver, Observatory Grömme
CATALOG: USNO A2.0 / CMC-14 - BAND: R

                                    10x10  20x20  30x30  40x40  50x50  60x60  
SNR   SB   COD
OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-    
N  FWHM  CAT
------------  ---------- --------  -----  -----  -----  -----  -----  ----- 
----  ----  ---
246P          25/05/2012 22:27:49  14.76  14.20  13.99  13.86  13.77  13.71 
13.9  17.8  X13
246P          25/05/2012 22:27:49*  0.04   0.09   0.11   0.10   0.13   0.14    
9   5.4  CMC
246P          25/05/2012 22:28:22  14.77  14.20  13.99  13.86  13.77  13.71 
14.5  17.8  X13
246P          25/05/2012 22:28:22*  0.04   0.08   0.10   0.10   0.13   0.13   
10   5.4  CMC
C/2011 L4     24/05/2012 23:54:50  12.96  12.41  12.22  12.12  12.06  12.03 
14.4  15.3  X13
C/2011 L4     24/05/2012 23:54:50*  0.04   0.06   0.05   0.06   0.06   0.08   
10   5.3  CMC
C/2011 L4     25/05/2012 23:45:44  12.95  12.38  12.22  12.14  12.11  12.08 
19.0  15.8  X13
C/2011 L4     25/05/2012 23:45:44*  0.03   0.05   0.07   0.08   0.09   0.09   
10   5.2  CMC
C/2011 L4     27/05/2012 00:17:34  13.01  12.47  12.28  12.22  12.22  12.07  
9.5  14.6  X13
C/2011 L4     27/05/2012 00:17:34*  0.06   0.05   0.09   0.11   0.12   0.18    
7   5.3  CMC
C/2011 L4     29/05/2012 00:11:46  12.94  12.42  12.27  12.19  12.12  12.08 
17.5  15.4  X13
C/2011 L4     29/05/2012 00:11:46*  0.04   0.03   0.03   0.04   0.06   0.07    
5   5.3  CMC
C/2011 F1     26/05/2012 01:43:36  14.97  14.16  13.80  13.57  13.40  13.31 
10.9  18.2  X13
C/2011 F1     26/05/2012 01:43:36*  0.02   0.06   0.06   0.06   0.06   0.07    
8   5.3  USN
C/2011 F1     27/05/2012 01:20:08  14.95  14.14  13.80  13.60  13.50  13.45 
11.0  17.8  X13
C/2011 F1     27/05/2012 01:20:08*  0.03   0.06   0.08   0.09   0.10   0.12   
10   5.0  USN
C/2011 F1     28/05/2012 22:05:20  14.96  14.17  13.84  13.65  13.55  13.49 
14.5  18.5  X13
C/2011 F1     28/05/2012 22:05:20*  0.02   0.04   0.04   0.05   0.06   0.06   
10   5.1  USN
C/2006 S3     26/05/2012 01:05:57  13.86  13.17  12.89  12.72  12.61  12.54 
15.2  16.9  X13
C/2006 S3     26/05/2012 01:05:57*  0.02   0.05   0.06   0.07   0.08   0.08   
10   5.3  CMC
C/2009 P1     26/05/2012 21:24:50  13.00  12.13  11.71  11.42  11.18  10.99 
15.4  16.4  X13
C/2009 P1     26/05/2012 21:24:50*  0.04   0.06   0.07   0.07   0.07   0.08    
9   5.4  CMC
C/2010 S1     27/05/2012 01:58:44  14.90  14.28  14.06  13.98  14.06  14.14  
8.9  16.3  X13
C/2010 S1     27/05/2012 01:58:44*  0.07   0.10   0.10   0.14   0.24   0.35   
10   5.0  USN
C/2010 S1     29/05/2012 00:56:25  14.75  14.11  13.84  13.71  13.63  13.57 
12.3  17.1  X13
C/2010 S1     29/05/2012 00:56:25*  0.03   0.05   0.07   0.11   0.11   0.13   
10   4.9  USN
29P           26/05/2012 22:47:37  16.10  15.45  15.06  14.70  14.27  13.99  
5.8  16.2  X13
29P           26/05/2012 22:47:37*  0.29   0.11   0.03   0.10   0.06   0.06    
3   5.4  CMC
C/2012 K5     28/05/2012 23:14:43  16.61  16.37  16.25                       
6.3  17.5  XXX
C/2012 K5     28/05/2012 23:14:43*  0.29   0.41   0.46                         
7   5.1  CM

FoCAs 3.33
www.astrosurf.com/cometas-obs
es.groups.yahoo.com/group/Cometas_Obs


[Non-text portions of this message have been removed]

Reply | Messages in this Topic (4)
#19646 From: "Maik Meyer" <maik@...>
Date: Sun Jun 10, 2012 7:38 pm
Subject: Re: Observations Comets 24 - 29/05/2012 		maiki666
Send Email Send Email
  
Hello Pieter-Jan,

> Attached all my observations of comets true the nights of 24 / 05 until
> 29/05

this should be posted to CometObs, and not to comets-ml.

Thanks, Maik
--
If they give you ruled paper, write the other way.  * Juan Ramon Jimenez
________________________________________________________________________
        maik@...          http://www.comethunter.de
International Comet Quarterly    http://cfa-www.harvard.edu/icq/icq.html
             http://groups.yahoo.com/group/comets-ml

Reply | Messages in this Topic (4)
#19647 From: "Leonid Elenin" <l.elenin@...>
Date: Mon Jun 11, 2012 8:59 am
Subject: CD07610 - new object with small q? 		l.elenin
Send Email Send Email
  
CD07610 discovered by LINEAR may have relatively small q~0.11. Further
observations is encouraged.


Regards,
Leonid Elenin
ISON-NM Observatory (H15)

Reply | Messages in this Topic (1)
#19648 From: "Maik Meyer" <maik@...>
Date: Mon Jun 11, 2012 8:49 pm
Subject: C/2012 L3 		maiki666
Send Email Send Email
  
Hello all,

just to note that the low-q orbit is really preliminary as said in the CBET.
Here's an alternative orbit

C/2012 L3
    Perihelion 2012 Jun 8.091911 TT;  Constraint: e=1
Epoch 2012 Jun 11.0 TT = JDT 2456089.5   Ju: 0.5726   Sa: 0.0960
q   3.05122106      (2000.0)            P               Q
M(T) 11.7  K 10.0  Peri.  105.73867      0.37478525      0.72872171
                    Node    53.14868     -0.84295963      0.52520153
e   1.0000000      Incl.  134.25319      0.38594697      0.43946333
From 34 observations 2012 June 10-11 (27.4 hr); mean residual 0".459.

With the low-q solution the comet might have been visible in SWAN, I think.

Cheers, Maik
--
If they give you ruled paper, write the other way.  * Juan Ramon Jimenez
________________________________________________________________________
        maik@...          http://www.comethunter.de
International Comet Quarterly    http://cfa-www.harvard.edu/icq/icq.html
             http://groups.yahoo.com/group/comets-ml

Reply | Messages in this Topic (3)
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