Re: C/2004 H6
> I am not aware of any CCD photometry (not astrometric photometry)of C/2004 H6 in August
at the time of the Visnjan School of Astronomy, thanks to Reiner, I
made some photometry on C/2004 H6 (SWAN) out of the images that he
has posted yesterday. These are the main facts:
August 8.92, 2004
Aperture: 50,000 Km (~1.6'), unfiltered magnitude 12.5, Afrho: 87cm
Aperture: 25,000 Km (~0.8'), unfiltered magnitude 13.5, Afrho: 68cm
Aperture: 12,500 Km (~0.4'), unfiltered magnitude 14.3, Afrho: 65cm
The Aperture is intended at the comet distance, while the magnitudes
are unfiltered (Cousins R was used as source for the reference stars).
The equivalent dust column as deduced fron the Afrho is pretty small.
Accuracy is almost +/- 0.2 magnitudes for the brightness, and +/- 20
cm for the Afrho. These data seems to confirm a modest activity of
- Hi Greg and list,
> This is exactly why I became so frustrated that I finally saidthanks for clarifying this. I guess a lot of people will find this feature useful
> something. The truth is that there is only one software product that
> incorporates up to date magnitudes and coma diameters *without* the user
> having to go and look for them themselves.
as well as your valuable input into this list. I think there's no need to defend
Also I hope that this discussion can now put to a rest because of lot of this has
already been discussed some time ago. As always in life - there is not only black
and white, there is a spectrum of opinions and likings. Just like with comets.
And about some questions and opions man will never agree. ;)
If they give you ruled paper, write the other way. * Juan Ramon Jimenez
German Comet Section http://www.fg-kometen.de