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[vsnet-rcb 566] R CrB: how deep was the deepest minimum?

Date: Tue, 11 Mar 2003 19:22:08 +0900 (JST)
To: vsnet-campaign-rcb@ooruri.kusastro.kyoto-u.ac.jp,vsnet-chat@ooruri.kusastro.kyoto-u.ac.jp,vsnet-rcb@ooruri.kusastro.kyoto-u.ac.jp
From: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
Subject: [vsnet-rcb 566] R CrB: how deep was the deepest minimum?
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R CrB: how deep was the deepest minimum?

    According to the GCVS, the minimum magnitude of R CrB is given as 14.8v
(possibly a visual magnitude).  The star doesn't seem to have reach far
fainter than V=14.0 recently.  Could there have been a real such a deep
minimum in the past, or could it have been a systemtic difference between
the old and new comparison stars?

Regards,
Taichi Kato

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