By physical necessity and as I've pointed out previously, the dust tail of 2011 W3 SHOULD be continuing to lengthen...at least until the surface brightness of...
19177
Frans van Loo
frans.v.loo@...
Jan 1, 2012 2:17 pm
Some observers report the obervations /photo's in U.T. and others in local Time. So , info on the photo's we have to convert the given local time to U.T. I ts...
19178
Artyom Novichonok
artnovich
Jan 1, 2012 2:20 pm
Hello All! 2011 year was finished... Let me introduce some results of 2011 year from me. 1. Visual comet estimates. I got 13 estimates for 4 comets. All my...
19179
Jakub Černý
sigfridkaos
Jan 1, 2012 2:29 pm
Nice work Artyom! Jakub ... From: comets-ml@yahoogroups.com [mailto:comets-ml@yahoogroups.com] On Behalf Of Artyom Novichonok Sent: Sunday, January 01, 2012...
19180
Alan Hale
ahale15
Jan 1, 2012 7:51 pm
Comet 29P/Schwassmann-Wachmann 1 This is the famous comet discovered in 1927 that travels in a near-circular orbit between the planets Jupiter and Saturn, and...
19181
Alan Hale
ahale15
Jan 1, 2012 7:57 pm
Comet LINEAR C/2011 F1 After I had finished adding the newest "return" of Comet 29P to my tally on the morning of December 30, I turned by telescope towards...
19182
Rob
kaufman_rob
Jan 2, 2012 12:37 am
Lester Barnes of South Australia has continued to produce a great series of widefield images of the comet night by night and with his permission I'm posting a...
19183
JS & EJ Gifford
jsg388
Jan 2, 2012 1:17 am
Congratulations, Rob. I got my first clear night for several days but was not able to pick the tail naked eye, after moonset in a dark sky, probably part due...
19184
Ian Musgrave & Peta O...
ianfmusgrave
Jan 2, 2012 11:16 am
G'Day All Finally I can post again! Thanks for sharing Lester's Images Rob. I looked this morning (2Jan, 3:30 am AEDST) from the Western Victorian plains, sky...
19185
Rob
kaufman_rob
Jan 2, 2012 3:20 pm
Image taken after moonset tonight, only grabbed a few short (50-sec) tripod subs so not as smooth as I'd like. 14:40, 02 Jan 2012 UT: ...
19186
Rob
kaufman_rob
Jan 3, 2012 12:17 am
Another animation I made of Lester Barnes' images from the last two mornings, posted with permission. Faint tail shows to top of frame, a distance of 40...
19187
David Seargent
seargent@...
Jan 3, 2012 4:19 am
Hi all. Yesterday morning ((Jan. 1 UT) the sky was clear though possibly not quite as transparent as previous morning, but the tail appeared very faint (only...
19188
David Seargent
seargent@...
Jan 3, 2012 4:49 am
Hi all, Just a few ideas to put before the group. As I wrote previously, I suspect that the initial intrinsic faintness of this comet was not so much a...
19189
Bomber2 Panther
outbackmanyep
Jan 3, 2012 5:04 am
Hi David, What time span would the nucleus have had to endure the perihelion passage? The SOHO movies show the comet reappearing quite fast, and also as for...
19190
Robert McNaught
rmn@...
Jan 3, 2012 6:28 am
Jan 01 - tail only visible for ~22 deg, difficult to direct vision Jan 02 - much easier, but mostly using averted vision now that it has cleared the edge of...
19191
Erik Bryssinck
good4me_be
Jan 3, 2012 6:46 am
Hello, Alfons Diepvens (Olmen, Belgium MPC:C23) mentioned yesterday on his CCD images an increasing of the magnitude an starlike shape of the coma of comet...
19192
kaos@...
sigfridkaos
Jan 3, 2012 8:50 am
Hello Chris, In case of "ripped tail" there seems to be most important pressure of solar radiation. Smaller the dust particles are, highe this effect changing...
19193
ligustri rolando
astroligu2002
Jan 3, 2012 9:43 am
https://picasaweb.google.com/107386404051271210368/CometeDiRolandoLigustriCASTItalia#5693337278362844002 best regards Rolando Ligustri ...
19194
Paul Camilleri
pcamilleri71@...
Jan 3, 2012 11:20 am
Regarding Comet 2010 G2.... My astrometry images via C14 + CCD at Grove Creek Observatory E16 from 2011 Dec 30.4ut & 2012 Jan 01.4ut both show a magnitude of...
19195
GD
gd253
Jan 3, 2012 1:21 pm
Hi everyone, You can see the best pictures of the comet here by Astronomical Society of Victoria members: http://asv.org.au/lovejoy.php Hope you enjoy them as...
19196
walcom77
Jan 3, 2012 1:23 pm
Hi All we perfomed some follow-up of C/2010 G2 (Hill) remotely from the Faulkes FTS few minutes ago on 2012, January 03.46 through a 2.0-m f/10.0...
19197
jbortle@...
cnj999
Jan 3, 2012 1:49 pm
David - As a first approximation, I would say that your conclusions seem quite reasonable. Certainly, something quite unusual occurred with Comet Lovejoy over...
19198
Bob King
cometlynx
Jan 3, 2012 3:04 pm
Hi everyone, I can also confirm visually that the comet's nucleus is nearly stellar and ~13.0 magnitude. I observed it last night Jan. 3.08 UT with my 37cm...
19199
Robert McNaught
rmn@...
Jan 3, 2012 3:30 pm
Checked the comet just now with the naked eye after moonset. After a few minutes dark adaptation, I suspected the comet, but then realised it was too far out...
19200
Robert McNaught
rmn@...
Jan 3, 2012 3:44 pm
... Of course, from Oct 11.4UT it will be visible in a dark sky in the evening....
19201
RICHARD MILES
gallileo99uk
Jan 3, 2012 5:02 pm
... I agree that a temporary surface crust of material can form, but not as you have envisaged here. One key factor here is that time near closest approach is...
19202
Robert McNaught
rmn@...
Jan 3, 2012 5:13 pm
Fully dark adapted and the comet higher, the best I could do was trace the tail to 30 deg from the head. However this was only ~25 degrees of tail to the naked...
19203
RICHARD MILES
gallileo99uk
Jan 3, 2012 5:33 pm
... John - Allow me to follow through one possible interpretation based on my earlier description of the near-perihelion scenario: We talk about dust (i.e....
19204
W.-t. Hsu
pachacotihui
Jan 3, 2012 6:26 pm
Hi all, We C42 Xingming Observatory also carried out an immediate observation of the comet, finding that evidently the comet shows characteristics in outburst....
19205
Bernd Häusler
stargazer_fr...
Jan 3, 2012 7:00 pm
Hello all, this is obviously the second observed outburst of the comet. Only remembering the comet’s first observed outburst on August, 31 2010 of about 2.5...
