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[vsnet-chat 4231] Re: Omega CMa comparison stars
- Date: Tue, 17 Apr 2001 20:34:07 -0700 (MST)
- To: tkato@kusastro.kyoto-u.ac.jp
- From: Brian Skiff <bas@lowell.edu>
- Subject: [vsnet-chat 4231] Re: Omega CMa comparison stars
- Cc: vsnet-chat@kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
When looking up "best" photometric values for brighter stars, it is
best to avoid catalogues such as Tycho-1/2 and instead have a look at
published photoelectric data. This can be scanned at Jean-Claude Mermilliod's
GCPD site starting at:
http://obswww.unige.ch/gcpd/gcpd.html
...and doing queries by star name (HD number are best) in the "General Index"
link.
The Hipparcos data are useful for assessing small-amplitude variability
among bright stars, but not for obtaining magnitudes/colors on the standard
system.
\Brian
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