[vsnet-obs 21040] (fwd) Observation of Supernova 1999cl in M88

[Daisaku Nogami <nogami@kusastro.kyoto-u.ac.jp>]

 Date: Mon, 07 Jun 1999 20:26:21 -0700
 From: RCK <rkuberek@ix.netcom.com>
 Subject: Observation of Supernova 1999cl in M88

Here is my observation of Supernova 1999cl in M88 from
last night:

http://sciastro.net/flashca/m88seqx.jpg

Each of the first three images is a single five minute
guided exposure using the ST7 ABG camera and 6" AP
refractor at f/7. The fourth image combines the first
three. The arrows indicate the Supernova.

Unfortunately, I have only the GSC to work with right
now, so I couldn't make use of the reference stars provided
by Brian Skiff for magnitude estimates. However, I made
(unfiltered) estimates using four GSC stars, as follows:

Designation    Magnitude Est.

GSC-0880-0182  14.10
GSC-0880-0076  14.01
GSC-0880-0326  14.35
GSC-0880-0188  14.05

Average        14.13

The first two of these are brighter than the supernova, while
the latter two are fainter. Unfiltered photometry was per-
formed using the photometry function in CCDSoft. The estimates
were all made using the 04:35 image.

Bob Kuberek

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