[vsnet-chat 744] (fwd) Relatin between I-V and/or R-V magnitudes? (Skiff)

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

From bas@lowell.Lowell.Edu Tue Mar  3 03:06 JST 1998
Date: Mon, 2 Mar 1998 11:06:26 -0700
From: bas@lowell.Lowell.Edu (Brian Skiff)
To: tkato@kusastro.kyoto-u.ac.jp
Subject: Re: [vsnet-chat 742] (fwd) Relation between I-V and/or R-V magnitudes?
Cc: fidusz@zpok.hu
Content-Type: text
Content-Length: 254

     For stars of ordinary color, i.e. earlier than type M, the V-R color
is roughly 0.6(B-V); V-I = B-V approximately for these same stars.  Since
B-V becomes degenerate for M giants, the relationship with redder color
indices is not so simple.

\Brian

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