picture size: 1024 * 1024
picture name  position
20111102_0736_c2.gif (795,996)
20111102_0748_c2.gif (779,966)
20111102_0800_c2.gif (763,933)

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

Dear All,

Rainer and me compiled the list with October comets.

2144  Oct02,11 09:52:16  M.Kusiak         C2       Kreutz   Oct02,11
2145  Oct03,11 04:37:00  Z.Xu             C3,C2    Kreutz   Oct03,11
2146  Oct08,11 00:14:14  B.Zhou           C3       Kreutz   Oct08,11
2147  Oct11,11 12:17:30  S.Shurpakov      C3       Kreutz   Oct11,11
2148  Oct12,11 11:46:58  B.Zhou           C2       Kreutz   Oct11,11
2149  Oct12,11 18:34:18  M.Kusiak         C3       Kreutz  
Oct12/13,11
2150  Oct13,11 06:29:23  B.Zhou           C2       Kreutz   Oct13,11
2151  Oct16,11 11:36pm   S.Schmalz        C2       Kreutz   Oct15,11
2152* Oct16,11 09:15am   Z.Xu             C3,C2    Kreutz   Oct16,11
2153* Oct17,11 09:12am   S.Schmalz        C2       Kreutz   Oct16,11
resubmited in Sungrazer web @ Oct 17 2011 06:55:30
2154* Oct18,11 05:38:42  Kusiak/Schmalz   C3       Kreutz   Oct18,11
2155  Oct21,11 07:22:37  M.Kusiak         C3,C2    Kreutz   Oct21,11
2156  Oct23,11 19:37:37  M.Uchina         C2       Kreutz   Oct22,11
2157  Oct27,11 17:30:37  M.Kusiak         C3,C2    Kreutz   Oct27,11
2158  Oct28,11 22:42:18  S.Schmalz        C2       Kreutz   Oct29,11
2159  Oct29,11 07:37:48  S.Liwo           C3       Kreutz   Oct29,11
2160  Oct30,11 06:57:57  Z.Xu             C3       Kreutz   Oct29,11
2161  Oct30,11 18:34:19  M.Kusiak         C2       Kreutz   Oct30,11
2162  Oct30,11 18:55:42  M.Kusiak         C2       Kreutz   Oct30,11
2163  Oct30,11 23:33:50  Z.Xu             C3       Kreutz  
Oct30/31,11

(*)- submited via SOHO Hunter

Regards,
Michal

Well done for all
 
Jiangao~

--- 11年11月4日，周五, Michal Kusiak <komeciarz@...> 写道：


发件人: Michal Kusiak <komeciarz@...>
主题: [sohohunter] October confirmations, 2144-2163
收件人: sohohunter@yahoogroups.com
日期: 2011年11月4日,周五,上午4:15



 



Dear All,

Rainer and me compiled the list with October comets.

2144  Oct02,11 09:52:16  M.Kusiak         C2       Kreutz   Oct02,11
2145  Oct03,11 04:37:00  Z.Xu             C3,C2    Kreutz   Oct03,11
2146  Oct08,11 00:14:14  B.Zhou           C3       Kreutz   Oct08,11
2147  Oct11,11 12:17:30  S.Shurpakov      C3       Kreutz   Oct11,11
2148  Oct12,11 11:46:58  B.Zhou           C2       Kreutz   Oct11,11
2149  Oct12,11 18:34:18  M.Kusiak         C3       Kreutz  
Oct12/13,11
2150  Oct13,11 06:29:23  B.Zhou           C2       Kreutz   Oct13,11
2151  Oct16,11 11:36pm   S.Schmalz        C2       Kreutz   Oct15,11
2152* Oct16,11 09:15am   Z.Xu             C3,C2    Kreutz   Oct16,11
2153* Oct17,11 09:12am   S.Schmalz        C2       Kreutz   Oct16,11
resubmited in Sungrazer web @ Oct 17 2011 06:55:30
2154* Oct18,11 05:38:42  Kusiak/Schmalz   C3       Kreutz   Oct18,11
2155  Oct21,11 07:22:37  M.Kusiak         C3,C2    Kreutz   Oct21,11
2156  Oct23,11 19:37:37  M.Uchina         C2       Kreutz   Oct22,11
2157  Oct27,11 17:30:37  M.Kusiak         C3,C2    Kreutz   Oct27,11
2158  Oct28,11 22:42:18  S.Schmalz        C2       Kreutz   Oct29,11
2159  Oct29,11 07:37:48  S.Liwo           C3       Kreutz   Oct29,11
2160  Oct30,11 06:57:57  Z.Xu             C3       Kreutz   Oct29,11
2161  Oct30,11 18:34:19  M.Kusiak         C2       Kreutz   Oct30,11
2162  Oct30,11 18:55:42  M.Kusiak         C2       Kreutz   Oct30,11
2163  Oct30,11 23:33:50  Z.Xu             C3       Kreutz  
Oct30/31,11

(*)- submited via SOHO Hunter

Regards,
Michal








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

Greetings everyone!

I can't figure it out by myself. Please, help.

Sergey Shurpakov claimed a potential Kreutz-group comet in C3:

Nov 07 2011 18:31:57
Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011/11/07
    Kreutz group comet.
2154  631  676
2206  630  674
2218  627  672
2230  625  669
--Sergey Shurpakov

Then I claimed a potential Kreutz-group comet in C2:

Nov 07 2011 18:34:13
Potential comet:
Images: C2; 1024x1024 images.
(0,0) Upper Left.
20111107
    Kreutz group comet.
2236  711  1018
2312  687  990
2324  681  980
--Sergei Schmalz

which turned out to be a real one.

Now, I'm not sure if Sergey's claim is true, and if it is, then whether is it
the same comet?

Usually, a C3-comet coming from below the sun becomes visible in C2 images at
the Y-value of ~650. So, my comet is already visible in C2 at 22:36, which is
only 6 minutes after 22:30 in Sergey's claim, so his claimed object should be
around the Y-value of 667 or 668 at 22:36 , which is still 17-18px away from
650. So, in my opinion Sergey Shurpakov's claimed object is not the same with
mine. What is your opinion?

With best regards
Sergei Schmalz

Hi Sergei,

I think you are right.
I use Y=642 for the lower border of C2 in rotated C3 images
so Sergey's positions are even farther away from C2.

  Regards, Rainer

On 8 Nov 2011 at 0:19, Sergei Schmalz wrote:

> Greetings everyone!
>
> I can't figure it out by myself. Please, help.
>
> Sergey Shurpakov claimed a potential Kreutz-group comet in C3:
>
> Nov 07 2011 18:31:57
> Potential comet:
> Images: C3; 1024x1024 images.
> (0,0) Upper Left.
> 2011/11/07
>    Kreutz group comet.
> 2154  631  676
> 2206  630  674
> 2218  627  672
> 2230  625  669
> --Sergey Shurpakov
>
> Then I claimed a potential Kreutz-group comet in C2:
>
> Nov 07 2011 18:34:13
> Potential comet:
> Images: C2; 1024x1024 images.
> (0,0) Upper Left.
> 20111107
>    Kreutz group comet.
> 2236  711  1018
> 2312  687  990
> 2324  681  980
> --Sergei Schmalz
>
> which turned out to be a real one.
>
> Now, I'm not sure if Sergey's claim is true, and if it is, then whether is it
the same comet?
>
> Usually, a C3-comet coming from below the sun becomes visible in C2 images at
the Y-value of ~650. So, my comet is already visible in C2 at 22:36, which is
only 6 minutes after 22:30 in Sergey's claim, so his claimed object should be
around the Y-value of 667 or 668 at 22:36 , which is still 17-18px away from
650. So, in my opinion Sergey Shurpakov's claimed object is not the same with
mine. What is your opinion?
>
> With best regards
> Sergei Schmalz
>

Now in NEO Confirmation Page is object TLc001 and calculation of this orbit show
that's a sungrazer comet, hmm ?

TLc001
    Perihelion 2011 Dec 16.142575 TT =  3:25:18 (JD 2455911.642575)
Epoch 2011 Dec  2.0 TT = JDT 2455897.5   Earth MOID: 0.7340
M 359.877208             (2000.0)            P               Q
n   0.008682375    Peri.   28.417952     0.078898269    -0.296913669
a  23.44464634     Node   282.162916    -0.994136694     0.047371576
e   0.99966036     Incl.  103.221842     0.073941159     0.953728581
P 113.52           H   14.4     G   0.15   q 0.007962659  Q 46.88133003
From 11 observations 2011 Nov. 27-Dec. 1;   RMS error 3.642 arcseconds


Adam

Retracting my claim of��
picture size: 1024 * 1024
picture name  position
20111102_0736_c2.gif (795,996)
20111102_0748_c2.gif (779,966)
20111102_0800_c2.gif (763,933)

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

I did simulation of FOV from SOHO LASCO C2 and C3
AVI - x264 codec (731 KB)

c2011w3_on_soho.avi
<http://f1.grp.yahoofs.com/v1/EOXZTm8zh-k4owA8aGT8n4RqDw54y2ChZ1EvrPucBS\
wPaIGEIAtN5XY9ymE7PnHg4gBB4LnGkNv5aV_qpeYbrc1bcNHSBrzHwTA7UYc5sw/AdamLim\
ax7/c2011w3_on_soho.avi>
SOHO simulation of track C/2011 W3 (Lovejoy)

blue circle is FOV C3
red is C2

Elements of comet are:

C/2011 W3
     Perihelion 2011 Dec 15.996377 TT;  Constraint: e=0.99999
Epoch 2011 Dec  3.0 TT = JDT 2455898.5   Earth MOID: 0.5779
M 359.999002             (2000.0)            P               Q
n   0.000076746    Peri.   44.251913     0.163290829    -0.797120285
a 548.3992059      Node   312.314814    -0.970544656    -0.023991798
e   0.99999000     Incl.  128.173096     0.177141681     0.603343719
P  12842           M(T) 18.7    K  10.0   q 820294.1122km  Q 1096.792928





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

And I do track for STEREO-A HI 1 for this comet


c2011w3_on_stereo-a_hi1.avi
<http://f1.grp.yahoofs.com/v1/IPPZTi7pW2K6IZSsHK6McMaCn953Uo2xUEKUB4vmwY\
Vc4L6iYtaqOJq3QyshZERHbrvaYgZPlhuMbq1NSszpTLpdQIeihRmQQeMFuYIKmg/AdamLim\
ax7/c2011w3_on_stereo-a_hi1.avi>
C/2011 W3 track STEREO-A HI 1





Adam



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

Greetings!

Please, correct me if I'm wrong, but it looks to me, that Alan Watson confirmed
at Dec 11 2011 22:31:06 Rob Matson's C3 Kreutz-group comet reported at Dec 11
2011 19:43:14, which earlier already was reported by Zhijian Xu on C2 at Dec 11
2011 11:04:39 and confirmed by Tony Hoffman at Dec 11 2011 11:40:15. That's the
same comet, check it! In C3 it is at 15:06 in  445  645, as reported by Rob, and
the Y=645 is around the position on the Y-axis, when a Kreutz-group comet coming
up from below the Sun enters the C2 field of view, around the same time
Zhijian's reported comet appeard at the bottom border of C2.

With best regards
Sergei

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

Hi Sergei & all,

I agree with you,I did not expect it could be seen in C3. Now it  entered into
C3 but very faint. Thank you for your question~

Regards,
Zhijian

--- In sohohunter@yahoogroups.com, Sergei Schmalz <sergiuspro@...> wrote:
>
> Greetings!
>
> Please, correct me if I'm wrong, but it looks to me, that Alan Watson
confirmed at Dec 11 2011 22:31:06 Rob Matson's C3 Kreutz-group comet reported at
Dec 11 2011 19:43:14, which earlier already was reported by Zhijian Xu on C2 at
Dec 11 2011 11:04:39 and confirmed by Tony Hoffman at Dec 11 2011 11:40:15.
That's the same comet, check it! In C3 it is at 15:06 in  445  645, as reported
by Rob, and the Y=645 is around the position on the Y-axis, when a Kreutz-group
comet coming up from below the Sun enters the C2 field of view, around the same
time Zhijian's reported comet appeard at the bottom border of C2.
>
> With best regards
> Sergei
>
> [Non-text portions of this message have been removed]
>

Gidday Gents,
yes you might be right, apologies if it works out that way.
I was not too sure of the timing into C2,
  kind regards, Alan.

On Mon, Dec 12, 2011 at 2:57 PM, Sergei Schmalz <sergiuspro@...> wrote:

> **
>
>
> Greetings!
>
> Please, correct me if I'm wrong, but it looks to me, that Alan Watson
> confirmed at Dec 11 2011 22:31:06 Rob Matson's C3 Kreutz-group comet
> reported at Dec 11 2011 19:43:14, which earlier already was reported by
> Zhijian Xu on C2 at Dec 11 2011 11:04:39 and confirmed by Tony Hoffman at
> Dec 11 2011 11:40:15. That's the same comet, check it! In C3 it is at 15:06
> in 445 645, as reported by Rob, and the Y=645 is around the position on the
> Y-axis, when a Kreutz-group comet coming up from below the Sun enters the
> C2 field of view, around the same time Zhijian's reported comet appeard at
> the bottom border of C2.
>
> With best regards
> Sergei
>
> [Non-text portions of this message have been removed]
>
>
>



--
Kind regards, Alan


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

Hi Zhijian/Sergei,

I'm sure you are right. I mainly posted it because no
one else had reported it in C3 and I thought the
additional data might be helpful.

Cheers,
Rob

-----Original Message-----
From: sohohunter@yahoogroups.com on behalf of Zhijian
Sent: Sun 12/11/2011 8:42 PM
To: sohohunter@yahoogroups.com
Subject: [sohohunter] Re: Alan Watson's confirmation of Rob Matson's C3
Kreutz-group comet (Dec 11 2011 22:31:06)

Hi Sergei & all,

I agree with you,I did not expect it could be seen in C3. Now it  entered into
C3 but very faint. Thank you for your question~

Regards,
Zhijian

--- In sohohunter@yahoogroups.com, Sergei Schmalz <sergiuspro@...> wrote:
>
> Greetings!
>
> Please, correct me if I'm wrong, but it looks to me, that Alan Watson
confirmed at Dec 11 2011 22:31:06 Rob Matson's C3 Kreutz-group comet reported at
Dec 11 2011 19:43:14, which earlier already was reported by Zhijian Xu on C2 at
Dec 11 2011 11:04:39 and confirmed by Tony Hoffman at Dec 11 2011 11:40:15.
That's the same comet, check it! In C3 it is at 15:06 in  445  645, as reported
by Rob, and the Y=645 is around the position on the Y-axis, when a Kreutz-group
comet coming up from below the Sun enters the C2 field of view, around the same
time Zhijian's reported comet appeard at the bottom border of C2.
>
> With best regards
> Sergei


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

Hi guys,
Anyone have a take on the comet that i saw in the current Lasco C3 field, it's
below and a little left of the Sun.

Cheers,
Chris Wyatt
Walcha, NSW
Australia

And comet track from STEREO-B HI 1


c2011w1_stereo-b_hi1.avi
<http://f1.grp.yahoofs.com/v1/kHzgTubGpl-vrW0kL-wcU-q4kqs4RFC7v_7bw1RdpL\
ZxJgRFUpumbNOBd2j7kd3gyEvuEgjGV-C9wCLvPssAMmT43eyiJMc3BEZjsVpxiw/AdamLim\
ax7/c2011w1_stereo-b_hi1.avi>
C/2011 W3 track STEREO-B HI 1



All 3 files are in folder AdamLimax7



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

I am a beginner in finding Sun grazing comets.

On 13-Dec-2011 i posted following images --





Dec 13 2011 11:37:27

Salil Mulye
----------------------------------------------------------------------
----------------------------------------------------------------------

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
    Kreutz group comet.
16:06  442  671
16:18  442  669
16:30  441  667
--Salil Mulye




Dec 13 2011 11:37:16
Szymon Liwo
----------------------------------------------------------------------
----------------------------------------------------------------------

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
    Kreutz group comet.
1606  442  669
1618  442  667
1630  442  665
--Szymon Liwo



Both these images were confirmed 11:37:16 (by Hua Su) and 11:37:27 (by Szymon
Liwo)


I was late by 11 seconds from Szymon's post......In such case what is the time
tolerance which is taken ?

Will my discovery be considered ?

Thnax
Salil Mulye

Gidday Mr Wyatt,
please see this updated blog entry(scroll down) with images of the little
kreutz, well not so little really as it has produced a nice tail finally in
SOHO C2 images. I would say that this is a good prelude to Lovejoy
http://cometal-comets.blogspot.com/2011/12/comet-c2011-w3-lovejoy.html

kind regards, Alan Watson

On Wed, Dec 14, 2011 at 11:54 AM, outbackmanyep
<outbackmanyep@...>wrote:

> **
>
>
> Hi guys,
> Anyone have a take on the comet that i saw in the current Lasco C3 field,
> it's below and a little left of the Sun.
>
> Cheers,
> Chris Wyatt
> Walcha, NSW
> Australia
>
>
>



--
Kind regards, Alan


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

Hello Salil!


This one will be certainly considered as a co-discovery with Szymon (that's why
he confirmed your report)!

As for the time tolerance, we had confirmed co-discoveries of reports within up
to ~25 seconds. A report with a delay over 30 seconds will not get a
co-discovery credit.


With best regards

Sergei



________________________________
  Von: salilthecool <salilthecool@...>
An: sohohunter@yahoogroups.com
Gesendet: 2:10 Mittwoch, 14.Dezember 2011
Betreff: [sohohunter] Query ---


 
I am a beginner in finding Sun grazing comets.

On 13-Dec-2011 i posted following images --

Dec 13 2011 11:37:27

Salil Mulye
----------------------------------------------------------
----------------------------------------------------------

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
Kreutz group comet.
16:06  442  671
16:18  442  669
16:30  441  667
--Salil Mulye

Dec 13 2011 11:37:16
Szymon Liwo
----------------------------------------------------------
----------------------------------------------------------

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
Kreutz group comet.
1606  442  669
1618  442  667
1630  442  665
--Szymon Liwo

Both these images were confirmed 11:37:16 (by Hua Su) and 11:37:27 (by Szymon
Liwo)


I was late by 11 seconds from Szymon's post......In such case what is the time
tolerance which is taken ?

Will my discovery be considered ?

Thnax
Salil Mulye




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

Hello Karl and everyone!

Karl, I just wanted to ask a question regarding your last report:

Dec 14 2011 12:27:04 Mr Sungrazer
All,
I see in the SECCHI HI-1B images a fairly obvious small companion to Lovejoy. I
suspect
that this is the fragment first reported by Zhijian.
Karl

In the SECCHI image the fragment is moving parallelly just side by side with the
nucleus, whereas Zhijian's reported object on the C3 images is way ahead of it.
If you suspect it to be the same object, how could it speed up and pass by the
nucleus, is that really possible? Or do I misunderstand the geometry between the
two as seen in the SECCHI and C3 images?

WIth best regards
Sergei

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

Sergei,

> In the SECCHI image the fragment is moving parallelly just side by side with
the
> nucleus, whereas Zhijian's reported object on the C3 images is way ahead of
it.
> If you suspect it to be the same object, how could it speed up and pass by the
> nucleus, is that really possible? Or do I misunderstand the geometry between
the
> two as seen in the SECCHI and C3 images?

the SOHO and the STEREO spacecrafty are in different positions in space. Thus
the
different spatial perspective.

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

Hi all,

Bo Zhou told to me that,the position reported by him at
Dec 13 2011 18:05:15 should be a realy comet,and enter C2 at
2011/12/14 04:01,but Rafal Reszelewski reported it at
Dec 14 2011 05:30:35 and then Confirmed by Sergei Schmalz.

I check it again,found that this comet should been Bo Zhou's.

Dec 13 2011 18:05:15
Bo Zhou
Possible fragment/companion:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
    Kreutz group comet.
2130  446  689
2203  446  684
2218  446  682
2230  446  680
--Bo Zhou


Dec 14 2011 05:30:35
Rafal Reszelewski

Potential comet:
Images: C2; 1024x1024 images.
(0,0) Upper Left.
2011/12/14
    Kreutz group comet.
0401  219  936
0412  220  926
--Rafal Reszelewski

Regards~
Jiangao Ruan

Jiangao, thank you for checking it! I also asked Alexander Godunov to view it,
so we have now at least two persons who could confirm Bo's claim, I just couldnt
see his object well and was waiting for someone else more experienced to do
that. I have retracted now my confirmation that I'd given to Rafal.


With best regards

Sergei



________________________________
  Von: 建高 阮 <ruanjiangao19860202@...>
An: sohohunter@yahoogroups.com
Gesendet: 11:59 Samstag, 17.Dezember 2011
Betreff: [sohohunter] C3 comet report by Bo Zhou


 
Hi all,

Bo Zhou told to me that,the position reported by him at
Dec 13 2011 18:05:15 should be a realy comet,and enter C2 at
2011/12/14 04:01,but Rafal Reszelewski reported it at
Dec 14 2011 05:30:35 and then Confirmed by Sergei Schmalz.

I check it again,found that this comet should been Bo Zhou's.

Dec 13 2011 18:05:15
Bo Zhou
Possible fragment/companion:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011-12-13
Kreutz group comet.
2130  446  689
2203  446  684
2218  446  682
2230  446  680
--Bo Zhou

Dec 14 2011 05:30:35
Rafal Reszelewski

Potential comet:
Images: C2; 1024x1024 images.
(0,0) Upper Left.
2011/12/14
Kreutz group comet.
0401  219  936
0412  220  926
--Rafal Reszelewski

Regards~
Jiangao Ruan





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

Dear All,

Please note that current C3 Kreutz comet submited by me is visible at image of
22:06 (with wrong data name: 18:42UT)

Dec 18 2011 17:43:57  Michal Kusiak

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
20111218
    Kreutz group comet.
2206  425  703  -> wrong data name 18:42 UT
2218  424  701
2230  424  699
--Michal Kusiak

Regards,
Michal Kusiak

The date name is not wrong, the image of 18:42 is a mixture of two images - of
18:42 and 22:06 - you can see that by the star positions.This mixture always
happens, when SOHO begins to send new data and in the very beginning sends an
image from the last session.


To be honest, I also saw this C3 Kreutz-group comet in the image of 18:42 and
could report it, but I thought it wouldnt be fair, so I didnt report it and was
just honestly waiting for the next 3rd image, just like everyone else did for
sure....



________________________________
  Von: Michal Kusiak <komeciarz@...>
An: sohohunter@yahoogroups.com
Gesendet: 23:46 Sonntag, 18.Dezember 2011
Betreff: [sohohunter] About new C3 Kreutz


 
Dear All,

Please note that current C3 Kreutz comet submited by me is visible at image of
22:06 (with wrong data name: 18:42UT)

Dec 18 2011 17:43:57  Michal Kusiak

Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
20111218
Kreutz group comet.
2206  425  703  -> wrong data name 18:42 UT
2218  424  701
2230  424  699
--Michal Kusiak

Regards,
Michal Kusiak




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http://lasco-www.nrl.navy.mil/javagif/gifs/20111222_0342_c3.gif



Any idea what caused these streaks? (Presumably it's not an invasion fleet.)
An imaging artifact, or possible debris or outgassing from the SOHO
spacecraft?



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Comet Lovejoy survived perihelion and two science communities celebrated.  Now
it's time to bring the communities together to advance our knowledge in both
solar and comet physics.  This is a preliminary announcement for a 2-day
workshop to be held in Boulder, Colorado, USA on March 21 and 22, 2012 to
maximize the science return from this rare opportunity.

The remarkable journey of C/2011 W3 (Lovejoy) has been and will continue to be
chronicled by the dizzying array of solar and astrophysical missions currently
deployed in space and telescopes on the ground and by the large community of
amateur comet observers.  The impressive observations of instruments on SOHO,
SDO, Hinode, STEREO, and Proba-2 in particular provide a wealth of data that can
be used to address many solar physics questions.

However, solar physics must combine with the planetary crowd in order to do so. 
There are many questions that are relevant to both communities and whose answers
are needed to properly interpret these data. What was the precise orbit of the
comet?  What was the dust size and distribution as a function of time?  What was
the nucleus' size and composition?  And there will be many others.

Given the extensive role the amateur comet community has played throughout the
SOHO and STEREO missions, we want to make sure you know that you are invited as
well.

We are working to set up an e-mail list to facilitate discussion about C/2011 W3
and a web site to share data.  A conference website and call for papers will be
forthcoming.

In the meantime, the Yahoo Group "Comet Lovejoy Workshop" has been established
as a site where we will post information about the workshop as it becomes
available.  You can also use it to tell us if you are interested in attending
the workshop.

I'm curios too. Any Idea?. Is this 'event' the first time or there's been
before. Thanks.

Name: Sergey Shurpakov
Email: shurpakov_A98[at]tut.by
Report:
Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011/12/30  Kreutz group comet.
1906 336 717
1918 338 713
1930 339 711

Potential comet:
Images: C2; 1024x1024 images.
(0,0) Upper Left.
20111231  Kreutz group comet.
0412 7 923�
0424 13 913
0436 18 903
0448 22 893
0500 28 883


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Name: Sergey Shurpakov
Email: shurpakov_A98[at]tut.by
Report:
Potential comet:
Images: C3; 1024x1024 images.
(0,0) Upper Left.
2011/12/30  Kreutz group comet.
1006 384 857
1018 384 855
1030 384 854