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[bas@lowell.edu (Brian Skiff account lowell)]

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From: Rich Friedrich <richf@nsa.hp.com>
Message-ID: <Feb39@hoge.baba.hajime.jp>
Subject: (fwd) Nova Cassiopeiae 1993: Observations requested
To: bas@lowell.edu (Brian Skiff)
Date: Wed, 16 Feb 94 13:28:39 PST
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Brian,

I pulled this off of the Internet. Forward it to the Nova list if
you think appropriate.

Rich Friedrich
richf@nsa.hp.com
-------------------------------------------------------------------------

Latest observations, courtesy of Dr. Kato of the VSOLJ (Japan), and of the
VSS of the Norwegian Astronomical Society, have indicated this nova is
probably entering a deep minimum (cf. DQ Herculis 1934). If this is the
case, then the nova will very soon, within a few days, fade beyond the range
of many amateur observers.

If anyone, in a suitably northern latitude, is able to observe this nova
using photographic, photoelectric or CCD equipment in the next few days and
weeks, it would be of very great value. The latest information I have is
that the nova was approx. 10th magnitude (visual) at approx February 16.5
UT. Therefore it has registered a decline of roughly a magnitude in a day.

For comparison, the nova DQ Herculis declined by 9 magnitudes when it
entered dust minimum, so it is possible this nova will decline to 18th
magnitude at faintest, although probably it will not get this faint.

The coordinates I have are:
r.a. = 23h 41m 47s;   dec = +57deg 31' 00''   (equinox 2000 AD)

I understand that gif, postscript (and other formats) finding charts can be
found in the anonymous ftp server at medusa.uio.no, directory pub/bgranslo.
I have copied the postscript files to astro.keele.ac.uk, directory pub, where
I have also placed a postscript file of a recent (today) light curve. However
some people might have problems with the latter ftp server.

If anyone is able to make observations of this nova, could they please
communicate them either to the VSOLJ, to the VSS of the NAS, or to me. I
will forward any observations to the relevent person.

I thank Dr. Kato and the VSOLJ for their very useful public service in
communicating compilations of observations of this nova.

Andrew D. Scott
Astrophysics Research
University of Keele, UK
ads@astro.keele.ac.uk


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