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...
Hi All, ... Grayscale should actually be better than any other (mostly) monochromatic color table (as far as contrast is concerned). Some slight improvement ...
I thought I'd mention, for those who aren't aware, that the cover story of the current (August) issue of Sky & Telescope is an article co- written by me and...
Hi Tony, ... sorry Tony, I just missed that - I have simply not yet put a printout in the relevant folder. Thanks for the reminder. Cheers, Maik -- If they...
I wrote ... as a sidenote I want to mention that I was just able to obtain original prints of the first two parts of Heinrich Kreutz' three-part work on the...
... Well for me this is a ... declare me crazy ... into... ;) ... Hi, Maik-- I'd venture that it seems perfectly sane to most of the people here. :-) Tony p.s....
Hi all, A little more publicity for the comets... Check out the latest SOHO hotshot on the SOHO home page, titled "Family Ties Among a Thousand Comets". ...
Hi All, Sorry for cluttering the SOHO Sungrazer page with my initial abortive attempt to retract my 7/11 17:04:58 claim. One of the disadvantages of having a...
Hi all, I'm extremely sorry for today's wrong post, the post of 00:12 should be Rob's comet. There're too many post after Rob's discovery and I miss it...
In regard to the contents of this HotShot I want to mention that C/1999 U2 (which is not present on the graphs of the HotShot) may return within a few days of...
Hi Maik and all, Yes, I'm very much aware of the possible return of C/1999 U2 -- I look forward to its return!! It was left out of the current HotShot because ...
If a Kreutz group comet survives perihelion, would it show back up in the C2/C3 imagers after making its orbit around the sun and if so, approximately where in...
Hi Steve, That's a pretty big "if"! Only a handful of Kreutz-group comets have survived perihelion, the latest being Ikeya-Seki in the 1960's, I think (but I...
Hi all, ... I will. ;) C/1970 K1 (White-Ortiz-Bolelli) passed perihelion on May 14, 1970. The last observation was obtained on June 7. ... Not to speak of the...
From IAUC 8566: /// COMET C/1981 W1 (SOLWIND) R. Kracht, Elmshorn, Germany, reports that he has found a previously unrecognized Kreutz sungrazing comet on...
Dear hunters, please try to scroll back the board of discovery claims as far as possible before posting an own claim. We have now a lot of multiple postings...
Dear Maik, I have caught myself claiming someone elses claim myself. Remember everyone that is what the retracting my claim button is for!!!!! Maik is ...
Hi everyone. After watching one of the last CMEs, I noticed that one of the latest approaching comets seemed to increase in brightness as the CME occurred....
Hi Steve, ... since we do not know if the comet is indeed within the CME (remember, it is all 3D) I strongly suspect that it is an effect of the image...
I didn't think about the extreme amount of light that is coming from the sun that is blocked with the occulting disk. Although the CME's look bright in the...
I have been SOHO comet hunting for one year and have "discovered" dozens and dozens of comets.....the problem much to my chagrin in every case is that some...
Hi, Robert-- I can see that working much of the time, but often there is a pixel or two difference between one person's position and another's for the same ...
Hi all, congrats to Rainer Kracht for his additional three SOLWIND comets of 1983 and 1984. Two were announced in IAUC 8573 and one is still pending. The...
Tony Hoffman and Brian Marsden have published an outstanding article in the August 2005 issue of Sky & Telescope magazine on SOHO comets. A must read for all...
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