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Date: Tue, 6 Apr 93 19:15:59 JST
From: tkato@kusastro.kyoto-u.ac.jp (Taichi Kato)
Subject: SN1993J: CCD photometry at Nishi-Harima
M. Okyudo and T. Ishida (Nishiharima Observatory, Hyogo, Japan)
obtained following differential photometry of SN1993J using 0.6-m
reflector + CCD.
The color band is Johnson V (uncalibrated, but the color system
is very close to the standard V).
1993 Apr. 5.660 UT SN1993J V=11.98 (assuming star B as V=11.90)
star B - star A = +0.49
They revised their magnitude on Apr. 1.660 as V=11.22 referring
to star B.
Regards,
Taichi Kato (Kyoto University)
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