Of the three questions below, it's really the approximate current distance from the Sun that I'm most interested in. When I tried to create a diagram in a...
7946
Don Pearce
bigdp12000
Feb 2, 2005 1:48 am
Tony, My data says that Ikeya-Seki reaches aphelion in 2404 at a r distance of 183 AU. It is currently at about 60 AU out. Its orbital speed at a perihelion ...
7947
Tony Hoffman
tonyjhoffman
Feb 2, 2005 2:26 am
Thanks a lot, Don-- I appreciate your help. Tony ... distance ... perihelion ... speed at ... S1)-- ... of ... on. ... velocity...
7948
Ramon Naves
monnaves
Feb 2, 2005 11:29 am
http://astrosurf.com/cometas/cometas/2004-V5.html In the image it can be observed long but not very bright tail...
7949
Seiichi Yoshida
seiichi_yosh...
Feb 3, 2005 3:28 pm
Dear colleagues, Hirose discovered a 15-mag bright new supernova 2005W on Feb. 1. IAUC 8475 announced that nothing is visible on Hirose's CCD image on Jan. 11....
7950
Seiichi Yoshida
seiichi_yosh...
Feb 3, 2005 5:34 pm
Dear colleagues, The following comets are waiting for the first observation now. 141P must be brightening rapidly. It will appear in the very low sky at dusk...
7951
ligustri rolando
astroligu2002
Feb 3, 2005 6:51 pm
... Ciao Giovanni, in quella occasione parlerai anche di Afrho e del gruppo CARA? Visto che Antonio non ci potrà essere sarebbe importante continuare a fare...
7952
V. Nevski
vitalinevski
Feb 6, 2005 10:15 am
Hello All! Became accessible to visual observations the comet 49P/Arend-Regaux that the comet possesses a coma does not cause doubt. In total in 3' from a...
7953
Michael Jaeger
m.jaeger@...
Feb 6, 2005 12:54 pm
hi vitali comet arend rigaux was in the return 1984/5 bright too (12 mag). at the time around perihel i found a 20-25' tail regards michael jäger ... Hello...
7954
Henk Bril
henkbril
Feb 6, 2005 1:14 pm
Hello comethunters and -lovers; I have just added a page to my website with old maps on comets observed by Charles Messier. ...
7955
Sebastian F. Hoenig
sfhoenig
Feb 8, 2005 6:07 pm
Dear list, I just want to point you to the latest IAUC 8479 that reports observations of comet Hale-Bopp by Rivkin & Binzel with the 6.5-m Clay telescope at...
7956
tricks46
Feb 9, 2005 1:34 am
... observations ... at the ... 8.5" " was ... following ... Not bad for an object over 21au distant. Mike...
7957
gvnn64
Feb 9, 2005 2:42 pm
Hello list, you may be interested on an update about 9P/Tempel some 5 months before the "Deep-Impact" fireworks. Currently the comet is at r~ 2.0 A.U., while...
7958
Michael Jaeger
m.jaeger@...
Feb 9, 2005 4:14 pm
Hi Giovanni i confirm your observation - small condensed coma and short tail. around 14-15mag on morning feb. 9 on ccd images michael jaeger ... Hello list, ...
7959
Maik Meyer
maiki666
Feb 13, 2005 7:23 am
Hi list, IAUC 8485 reports the identification of the lost comet D/1819 W1 (Blanpain) with the Apollo object 2003 WY25. This was already suggested one year ago...
7960
Reiner M. Stoss
rms1kpde
Feb 13, 2005 12:56 pm
... The IAUC sounds rather like "could be, but we are not 100% sure". It says "COMET D/1819 W1 (BLANPAIN) AND 2003 WY25" and *not* "COMET D/1819 W1 (BLANPAIN)...
7961
Maik Meyer
maiki666
Feb 13, 2005 3:30 pm
Hi all, related to the D/1819 W1 - 2003 WY25 case I want to point out a recent paper by H. Hsieh and D. Jewitt ...
7962
Howie
obsessionowner
Feb 13, 2005 7:18 pm
I have a question guys. The other night, I was out observing C/2004 Q2 Machholz. I noticed what appeared to be waves of light traveling down the tail. Kind of...
7963
gvnn64@...
gvnn64
Feb 13, 2005 7:42 pm
... Hello Howie, I think that the last possibility you mentioned is probably the right one. Currently comet Machholz is at almost 93 million Km from Earth....
7964
Howie
obsessionowner
Feb 13, 2005 7:57 pm
Well the night was completely still, clear and no moon. I kind of figured that the distance from head to end of tail would be too great a distance for the it...
7965
gvnn64@...
gvnn64
Feb 13, 2005 8:08 pm
... Me too... Let's see if any other skilled observer can comment about it. Cheers, Giovanni ____________________________________________________________ 6X...
7966
Howie
obsessionowner
Feb 13, 2005 8:10 pm
Someone posted a link (See below) that shows exactly what I saw, If you look at the smaller animation you can see the pertubations running down the tail....
7967
gvnn64@...
gvnn64
Feb 13, 2005 8:15 pm
... Howie, this is the ion tail perturbations I mentioned in my previous post. Usually they take ten of munutes to hours in order to propagate (depending on...
7968
Howie
obsessionowner
Feb 13, 2005 8:24 pm
Thanks. We'll get to the bottom of this eventually. Howie ... If ... previous post. Usually they take ten of munutes to hours in order to propagate (depending...
7969
cnj999
Feb 13, 2005 10:17 pm
... Some old (19th century) comet observers occasionally reported this, calling the phenomenon "coruscation". A logical conclusion from the apparent speed at...
7970
David Seargent
seargent@...
Feb 13, 2005 11:46 pm
... From: "Howie" <scanmann1@...> To: <comets-ml@yahoogroups.com> Sent: Monday, February 14, 2005 6:02 AM Subject: [comets-ml] Question on C/2004 Q2...
7971
Howie
obsessionowner
Feb 14, 2005 12:18 am
... looking. Howie ... session ... C/2004 ... traveling ... see ... womdering if ... is it ... real ... recall ... tail of ... terms) by ... as the ... in more...
7972
David Seargent
seargent@...
Feb 15, 2005 3:09 am
... From: "cnj999" <jbortle@...> To: <comets-ml@yahoogroups.com> Sent: Monday, February 14, 2005 9:17 AM Subject: [comets-ml] Re: Question on C/2004 Q2...
7973
David Seargent
seargent@...
Feb 15, 2005 3:09 am
Dear all, C/2005 A1 (LINEAR) has brightened rapidly in the last couple of weeks. I first saw it as a very marginal object in 25x100 binoculars on Feb. 3.54 and...
7974
Seiichi Yoshida
seiichi_yosh...
Feb 15, 2005 8:49 am
Dear Giovanni, ... Today I updated the light curve of 9P: http://www.aerith.net/comet/catalog/0009P/2005.html The red curve shows the predicted brightness in...
