The IAU Minor Planet Center Guide to Minor Body Astrometry was updated again on Dec 18, 2009. It was updated earlier on Dec 11 as noted by J05 P. Birtwhistle. ...
16185
Pachacoti
wentaopachacoti
Jan 2, 2010 8:17 pm
Hi all, Currently there is a very bright Kreutz group comet detected by Alan Watson the day before in HI1A sequences of 2009 Dec 30 in LASCO C3 data images....
16186
rainerkracht
Jan 2, 2010 8:54 pm
Hi, from my measurements in HI1A and Wentao's C3 I have: 2009/12/30 JD=2455195.9576500 (ref. J2000.0) File: KREUTZ.POS Equat. Pos. & Vel....
16187
P. Edward Murray
eddiestardust
Jan 2, 2010 9:47 pm
Is it still observable in the Lasco images? Magnitude estimates? Thanks, Ed Murray [Non-text portions of this message have been removed]...
16188
Matson, Robert D.
rdotdaneelol...
Jan 2, 2010 9:53 pm
Yes, still very visible in LASCO, and has gone to negative magnitude. I have created a movie of all of today's LASCO C3 images if anyone wants me to forward it...
16189
Michal Kusiak
komeciarz
Jan 2, 2010 9:55 pm
Comet is still visible in solar elongation ~3.5 deg. At this moment comet saturated C3 detector. Magnitude perhaps 0 (maybe -1) mag and still go to up. If the...
16190
Mike Mattei
micmattei
Jan 2, 2010 10:17 pm
Hi Robert I would be interested in a video of this comet could you send it to me please? Thanks Mike Mattei micmattei@... ... From: Matson, Robert D. ...
16191
Pachacoti
wentaopachacoti
Jan 2, 2010 10:20 pm
More to come: NET UCAC-2 AWST01A C2010 01 02.01267 19 04 34.50 -27 50 25.4 5.9 R 249 AWST01A C2010 01 02.02934 19 04 34.77 -27 47 38.1...
16192
Matson, Robert D.
rdotdaneelol...
Jan 2, 2010 10:25 pm
... Significant radial distortion for a field of view as wide as LASCO-C3 is pretty much unavoidable. I typically model much narrower-field, space-based...
16193
Matson, Robert D.
rdotdaneelol...
Jan 2, 2010 10:41 pm
I think this comet might be a good candidate for ISS astronauts to observe directly -- right after local spacecraft sunset. I'll have to see what the geometry...
16194
Lode Stevens
lodestevens
Jan 2, 2010 11:46 pm
Could there be a reflection at 9 o' clock and I see an object just before the comet in the same area. Please confirm ? Lode Stevens Belgium ... From: P. Edward...
16195
W.-t. Hsu
wentaopachacoti
Jan 3, 2010 3:53 am
I attempted to observe the comet between 00:30 UT to 03:00 UT via a 8.0cm-refractor f/7.5 without any success unfortunately, maybe due to the unfavorable sky...
16196
jbortle@...
cnj999
Jan 3, 2010 4:23 am
My impression of the comet's brightness at 03 hours UT on January 3rd, by comparision with previous images of Antares in the SOHO C3 field, suggests to me that...
16197
Matson, Robert D.
rdotdaneelol...
Jan 3, 2010 4:31 am
One factor to consider for SOHO C3 -- the CCD is definitely red-sensitive, so a blue star of the same magnitude as Antares would appear quite a bit dimmer than...
16198
kdconod
Jan 3, 2010 5:26 am
You can make your own movie with the SOHO movie theater. http://sohodata.nascom.nasa.gov/cgi-bin/soho_movie_theater Select Lasco C3 Start at 2010-01-01, end at...
16199
W.-t. Hsu
wentaopachacoti
Jan 3, 2010 9:15 am
I made another attempt this afternoon since 14:00 local time (6:00 UT), yet I failed again even though I observed in a place where the sun was just merely...
16200
Tony Beresford
astrogram3
Jan 3, 2010 9:29 am
... Rob, The surface temperature of this object dont forget might get closer to Antares effective temperature Are there colour indices for the Kreuz family. I...
16201
jbortle@...
cnj999
Jan 3, 2010 1:31 pm
... Even though likely true, the length of this comet's "bloom spikes" either side of the head are significantly shorter than those exhibited by either Saturn,...
16202
Wolfgang Renz
wr_astro
Jan 3, 2010 10:07 pm
Hello Are there already any conventions how to handle the SOHO LASCO C2 and C3 photometry ? ... If the detector is a red-sensitive CCD, then one should...
16203
costeira1
Jan 3, 2010 10:43 pm
Dear friends, Accordind lastest C2 images, this comet desintegrated: SpaceWeather note: DISINTEGRATING COMET: A bright comet discovered by NASA's STEREO-A...
16204
Jordi Camarasa
jordicamarasa
Jan 3, 2010 10:55 pm
WOW!!! Thanks Alex!!! Observatorio Paus MPC B49 _____ De: comets-ml@yahoogroups.com [mailto:comets-ml@yahoogroups.com] En nombre de costeira1 Enviado el:...
16205
jbortle@...
cnj999
Jan 3, 2010 11:36 pm
... Clearly, the comet's coma, or head, abruptly becomes very ghostly between the 1130UT and 1154UT C2 frames, probably signaling the approximate time of the...
16206
Alan Watson
algwat
Jan 3, 2010 11:57 pm
Gidday all, This link show a persistent tail example for a bright SOHO comet in 2007. ...
16207
P. Edward Murray
eddiestardust
Jan 4, 2010 2:48 am
Alan, Congratulations on your discovery, so sorry to hear that it didn't make it.... Best wishes, Ed Murray [Non-text portions of this message have been...
16208
terryjlovejoy
Jan 6, 2010 10:38 am
I though this animation by Alan Watson of the recent bright Kreutz comet was worth reposting from one the other list's: ...
16209
Alan Watson
algwat
Jan 6, 2010 12:30 pm
Gidday Terry, ... This Kreutz comet entered the FOV of STEREO A 20091230 in the first frames, it is near the pixel values I get that would inidicate it has a...
16210
DAVID
ghedi_dave
Jan 6, 2010 5:02 pm
Dear All, One century ago this month, the Great Comet of 1910 was spotted by miners in South Africa... ...
16211
Maik Meyer
maiki666
Jan 6, 2010 6:32 pm
Hi all, an exciting new project as can be seen from the ICQ webpages: http://www.cfa.harvard.edu/iau/icq/csc/index.html Kind regards, Maik -- If they give you...
16212
Charles Bell
charbell...
Jan 8, 2010 12:21 am
I am reading the news on P/2010 A2 which has a straight tail and several observers having trouble getting position from lack of central condensation. From the...
16213
Alan Hale
ahale15
Jan 10, 2010 5:37 pm
Dear Charles, and all, ... It gets even more interesting, according to the latest orbit: http://www.cfa.harvard.edu/mpec/K10/K10A51.html We'll have to see if...
