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[vsnet-chat 5951] Crude USNO B1.0 B1-R1 to B-V transformation
- Date: Sat, 8 Feb 2003 12:31:48 +0900 (JST)
- To: vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
- From: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
- Subject: [vsnet-chat 5951] Crude USNO B1.0 B1-R1 to B-V transformation
- Delivered-To: vsnet-chat-archive@ooruri.kusastro.kyoto-u.ac.jp
- Delivered-To: vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp
Crude USNO B1.0 B1-R1 to B-V transformation
We have received a suggested transformation equation from John Greaves
betwen USNO B1.0 colors and B-V. The best equation obtained by John Greaves
is B-V = 0.556(B1-R1) +/- 0.24, where B1 and R1 are USNO B1.0 blue and red
magnitudes. Unfortunately, John Greaves did not wish to forward the entire
reduction procedure, so I simply inform the relation as a reference (since
the equation may be experimentally used in some reduction software, I thought
it better to record the source of this information).
The figures associated:
http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/others/USNOcolor/jg1.jpg
http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/others/USNOcolor/jg2.jpg
Regards,
Taichi Kato
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