Hi all, I have modified the report form script again -- this time it is to prevent ".." being used in place of a comet position.... As always, if I have...
Hi Heiner, ... it is most likely an artifact coming from the blooming of the CCD chip, the internal design of the coronagraph and the image processing. Cheers,...
... The clue is in the blotches... look at them closely and you'll see one in the top-right that looks like an extended image of Mercury (? or Venus..? I...
Thanks, Karl-- That's great news -- maybe SOHO will last to see another thousand comets, though hopefully its replacements will be launched in due order. Tony...
I am sorry for my initial one-position post on the C2 comet there. I had filled in two positions of data but had neglected to put in the time for 0824, and so...
Hello, I have been trying to figure out which direction a Kreutz group comet would be coming from if I was to look up in the direction of the sun. I live in...
Hi, Steve-- In the LASCO images, south is down, so at midday (at this time of year) the Kreutz stream would be approaching the Sun from the lower right, just...
Thanks for the reply Tony. I've often wondered if one of the larger Kreutz group comets or any of the other sungrazers could be observed with a fairly large...
Hi, Steve-- Hunters look for them telescopically, but Kreutz comets that are detectable in the night sky are rare--and very often spectacular. None have even...
C/2002 V1 (NEAT) was very beautiful, as was 96P Machholz (both times) but yes, I think Bradfield was the most impressive, if only for the enormous length of...
If a Meyer group comet was to enter the C2 field of view, couldn't it be easily mistaken for a Kreutz comet? Is there any way to determine Meyer or Kreutz as...
Hi Steve, At this time of year, a Meyer group comet would be easily distinguished from a Kreutz comet by its angular speed. Kreutz should move in C2 about 41...
Hello Steve, ... additionally to Rob's comment Meyer group comets (as well as Marsden and Kracht) do usually show a starlike point spread function while Kreutz...
Thanks for the replies. There is really a lot of information to learn about SOHO comets to understand them. There's another subject I've wondered about. If...
Steve, ... In the C3 transits list at the sungrazer site you'll see the predicted transits by asteroids. The limiting mag might be at 9 mag for C2 and 8 mag...
Hi all, there is even another point of distinction. ... if my records are correct, then there has been only ONE of the 58 Meyer group comets that has been seen...
I appreciate the information everyone has given me. While doing a little research on recent comet discoveries, I found that no amateur has discovered a comet...
Hi Steve, I guess that depends on the definition of amateur vs. professional. Rob McNaught has certainly found a number of comets this year, though perhaps...
Er...I think it is because there is few bright comet this year.I guess Japan will find a comet that is discovered by amateurs this year.Just I think. ... Maybe...
While observing several comets pass through the C2 camera, I've noticed in a couple of the images directly behind the comet there appears to be what I call a...
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What filters are used to produce red C2 (HIIa?) and blue C3 colors and why are those particular filters used and not some others? Are they better for finding...
Hi Robert, ... No, the filters are not because of finding comets. Comets are a side product of the mission which is designed to observe the sun and its...
Hi Robert, Further to Maik's comments, the red and blue colors are purely arbitrarily chosen color tables. The data files (fits files) for each camera...
Dear list, I have just updated the references list in my dedicated webpages regarding comet groups. While for the Kreutz group the references are far from...
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