Dear Andre, I did not receive the details of Marco Micheli's observations. Marco sent me the observations of 97P and 36P at F65. Those of 36P were published in...
16748
ligustri rolando
astroligu2002
Oct 2, 2010 3:40 am
Comet this morning, the strong presence of the Moon has disturbed the image. the interesting thing is that in the B channel, you feel a long ion tail 8 'to PA...
16749
Seiichi Yoshida
seiichi_yosh...
Oct 2, 2010 12:41 pm
Dear colleagues, Here is the list of major rendezvous events of Comet 103P/Hartley 2, coming to the brightest :-) ...
16750
adastragrl
Oct 2, 2010 1:33 pm
It is wonderful seeing all of the great pics of comet Hartley 2. I hope that you'll consider sharing your images with the AOP, Amateur Observers' Program, ...
16751
davejm28
Oct 4, 2010 3:42 pm
I was at a "local" dark sites on Friday night with two friends and observed the comet through an 8x50 finder scope, 8x42 and 10x50 Celestron binoculars, a 6"...
103P/Hartley: 2010 Oct. 4.83 UT: m1=5.3, Dia.=45', DC=2, naked eye. [ In 4x30 monocular: m1=5.2. Observation made under better conditions, from a higher and...
16753
ligustri rolando
astroligu2002
Oct 5, 2010 3:34 pm
http://picasaweb.google.it/astroligu/CometeDiRolandoLigustriCASTItalia#5524584437690637458 best regards Rolando Ligustri =============================== ...
16754
walcom77
Oct 6, 2010 2:27 pm
Hi All Here you can see our confirming image and some info of newly discovered comet P/2010 T1 (McNAUGHT): http://bit.ly/c8pbJi Congratulation to Robert for...
16755
Alan Hale
ahale15
Oct 7, 2010 7:51 pm
Comet LONEOS C/2006 S3 Yet another distant long-period comet, although this one is somewhat notable in a couple of respects. It was discovered over four years...
16756
Dr S. Aguirre
drsaguirre
Oct 8, 2010 4:17 am
103P/Hartley 2010 Oct. 07.13UT: m1=6.5, Dia=16´, DC=3´, Cola: no visible, 15cm SCT(37x), Salvador Aguirre (Hermosillo, Sonora, Mexico) salvador...
16757
chergen
Oct 8, 2010 7:56 pm
I have updated my analysis and graphs for 103P at http://transientsky.wordpress.com/2010/10/08/update-on-comet-hartley-2/ Not much new to report. The average...
16758
francois Kugel
fkspect
Oct 8, 2010 11:14 pm
Hello Carl, I can confirm a 1° coma diameter tonight Oct. 08.91. Image V filter (High Contrast) here : ...
16759
walcom77
Oct 13, 2010 9:07 am
Hi All MPEC 2010-T98, issued 2010 October 13, reports our recovery of comet 164P/Christensen. We found the comet on October 07 and October 11, 2010 at about...
16760
Dimitry Chestnov
astroched
Oct 13, 2010 9:43 am
... Giovanni, Your 2nd night astrometry does not converge by itself. Try to stack 2nd night images to 2 sums and re-measure. http://tinyurl.com/37g7opn Soon I...
16761
walcom77
Oct 13, 2010 9:52 am
Dear Dimitry ... Below you can find the residual we obtained with findorb using 150 obs from 2005 to 2010. 10 10 07.50546 D96 20 11 35.01 -35 25 09.1...
16762
walcom77
Oct 13, 2010 10:25 am
... Just repeated the calculations. This time using 253 observations from 1998 to 2010 and the results are very good: 10 10 07.50546 D96 20 11 35.01 -35...
16763
Dimitry Chestnov
astroched
Oct 13, 2010 12:30 pm
... The magnitude limit of Takahashi TOA-150 is not deeper than 19.0-19.3 R. Residuals larger than 1 arcsec are not acceptable. In order to improve the quality...
16764
gvnn64@...
gvnn64
Oct 13, 2010 3:13 pm
Dear Dimitry. ... The software you are using (FindOrb) is a great tool. However, depending on its settings, and how many "clicks" you generate with your mouse...
16765
john@...
johnlmenke
Oct 13, 2010 4:54 pm
I have taken spectra of this comet on 09/20 and 10/12 using an N18 and DSS7. The only lines showing in my data appear to be fairly weak lines of O3 and C2....
16766
Daniel Fischer
skyweek
Oct 14, 2010 4:00 pm
In good photographs a tiny tail of 103P has been visible in recent days, largely covered by the huge gas coma. Is this a plasma or a dust tail? How could we...
16767
RICHARD MILES
gallileo99uk
Oct 14, 2010 5:09 pm
Daniel, As 103P approaches perihelion, its dust-to-gas ratio should decline very significantly as the gas dominates. The plasma tail would be relatively ...
16768
Carey Johnson
quarkcsj
Oct 14, 2010 5:18 pm
I believe gas tails usually point away from the Sun as the solar wind blows them back and are usually blue or green in color, while dust tails mark the motion...
16769
jbortle@...
cnj999
Oct 14, 2010 6:10 pm
... Although not having personally seen any photos showing other than Hartley's ion tail in recent days, I can offer the following regarding identifying the...
16770
dfischer@...
skyweek
Oct 15, 2010 2:35 pm
Regarding the physical nature of Hartley's short tail now clearly visible in photographs - such as ...
16771
Michael Mattiazzo
cometmanau
Oct 16, 2010 5:56 am
Hello all, 10P Tempel 2 still displays a prominent but faint dust trail, more than 2 months after Earth crossed the comets orbital plane. Not to be confused...
16772
ChanSong
tadiren@...
Oct 17, 2010 6:28 am
Hello all: That is IR images of 103P taken by 1m F8 RC at 2010-10-15T18:02:53' http://farm5.static.flickr.com/4111/5087474415_93764e496e_b.jpg DE BG4AHZ ...
16773
kaos@...
sigfridkaos
Oct 17, 2010 6:57 pm
Hello all, we have tried to image this comet via robotic 30-cm telescope at Argentina. We found nothing on comet position. I would like to call for some...
16774
Mike
mlynch53
Oct 18, 2010 3:16 pm
Which direction is the small tail of Hartley pointing? Has it been evident visually in modest telescopes? I thought I MIGHT have detected it visually in my...
16775
Bob King
cometlynx
Oct 18, 2010 6:56 pm
Hi Mike, It points to the southwest as I see it in my 15" reflector. The tail is very vague and looks more like an extension of the coma. Bob ... [Non-text...
16776
Mike
mlynch53
Oct 18, 2010 7:10 pm
Bob, Thank you! Now, my observation SEEMED to indicate a tail pointing in that general direction, but, as I said, I wasn't really sure I actually saw that. But...
