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[vsnet-obs 20635] SN1999by observation (Buczynski)


Date: Sat, 15 May 1999 00:49:39 +0100
From: Denis Buczynski <denis@cb978iau.demon.co.uk>
Subject: sn1999by ccd photometry

Dear Dr Kato,  I imaged SN 1999by tonight 1999 May 14.93201 using the
33cm f/3 automatic reflector at Conder Brow Observatory (iau code 978)
and an unfiltered SXL8 CCD camera and the reduced magnitude was 13.2
using NGC 2841 3 =GSC3431-0053 =V13.51 as the comparision.

Using the same comparision star I found that NGC2841 5 =GSC3431-0159 was
13.47 rather than 14.19 as listed in vsnet chart 151. Has this star been
suspected of variability on previous occasions? Using the same
comparision star on 990503.950 I found it at magnitude 14.2 (very close
to its listed value of 14.19)


Best wishes
Denis
-- 
Denis Buczynski

---

SN1999by 990514.93201 13.2C Buc

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