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[vsnet-discovery-nova 282] (fwd) More on nova suspect (Liller)



Date: Thu, 9 Oct 2003 17:47:41 -0400
From: "W.Liller" <wliller@compuserve.com>
Subject: More on nova suspect

Hola everyone (again) -

Further to my report on a nova suspect in Circinus, I have found images of
the star on the overlap portion of a pair of photographs taken 5.5 minutes
before the discovery photographs, at October 9.004 UT (average). 

Curiously, the star appears decidedly brighter at approximate magnitude
7.7.

Also, I have now found a pair of photographs of the region taken on October
4.010 UT.  Nothing is visible at the position of the star down to magnitude
11.0.

Finally, I should note that the nearest good comparison stars are either
quite blue with B-V near 0, or rather reddish with B-V near +1.2.  Until
we know the color of the nova suspect, we cannot estimate a reliable V
magnitude for it from my red photographs.  Note that very approximately,
(V-R) = (B-V)/2 at these colos.

All the best to all -- especially Jan Mattei.    B ill Liller


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