Re: The Harmonic Concordance debunked

Hi Ante,

Ante Perkovic wrote:
> Where did You find that info? Is there some recent magnitude estimates for
> this comet? That would explain why I can't see it in my 4.5" dob.
>
> http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2001HT50.html still gives
> mag 10.9 for November 9th.

I know it may come as a shock to most people, but the IAU ephemerides 
don't generally use accurate, up to date magnitude parameters for the 
fainter, less interesting comets.  That's why I take the time to do my 
own updates using the recent observations (for users of my SkyTools 
software).  I also make this information available to everyone on my 
Comet Chasing page <http://www.skyhound.com/sh/comets.html>.

There are three primary sources for comet magnitude observations:

ICQ: <http://cfa-www.harvard.edu/icq/CometMags.html>
Charles Morris: <http://encke.jpl.nasa.gov/RecentObs.html>
Comet Observation Group: <http://groups.yahoo.com/group/CometObs/>

Clear Skies,
Greg

--
Greg Crinklaw
Astronomical Software Developer
Cloudcroft, New Mexico, USA (33N, 106W, 2700m)

SkyTools Software for the Observer:
http://www.skyhound.com/cs.html

Skyhound Observing Pages:
http://www.skyhound.com/sh/skyhound.html