[vsolj-alert 128] Variable star near NGC 4013 = SN1989Z?

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

Variable star near NGC 4013 = SN1989Z?

　以下の情報が報告されています。これまでの眼視モニターの観測者からの報告と
　合わせ、おそらく変光星ではないのではないか、とのことです。早期警戒？網は
　解除してもよさそうですが、今後気をつけておいてよい天体かも知れません。

Date: Sun, 24 May 1998 15:01:14 -0700
From: bas@lowell.Lowell.Edu (Brian Skiff)
To: dgreen@cfa.harvard.edu, isn_chat@mbox.queen.it
Cc: vsnet-chat@kusastro.kyoto-u.ac.jp
Subject: [vsnet-chat 964] Star superposed on NGC 4013

     The galaxy photometry compilation of Longo & deVaucouleurs (Univ. of
Texas monograph no.3, 1983) provides UBV photometry of this star:  V = 12.65,
B-V = 0.41, U-B = -0.01.  The colors indicate an ordinary star near spectral
type F2.  Given the problems mention on the IAUC (log-scaled or stars-removed
images of galaxies at the NED Web site), I think there is no longer any need
to pay attention to this star, but greater need for attention to image sources
and to the literature!
\Brian

Regards,
Taichi Kato

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