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Date: Sat, 11 Dec 93 21:57:41 MST
From: bas@lowell.edu (Brian Skiff account lowell)
Nova folks:
Driving to the IAUC position of Nova Cas 1993 on the POSS-I prints using
the Lowell Observatory PDS machine, a candidate precursor appears on both
prints as a B ~18 star of neutral color. The candidate is the northern
component of a merged pair (thus the separation is ~2") of roughly equal
brightness elongated north-south. The pair are similar in width on both
prints, implying a B-R color of roughly 1.0.
I measured this component of the lobed image on both prints together
with 30 PPM stars in this region of the prints. The reference net was fit
with a full cubic polynomial in RA and Dec. Two stars were dropped after one
iteration, with rms residuals of about 0".4 total per star on both prints.
The positions for the candidate are:
RA (J2000) Dec
E print: 23 41 47.21 +57 31 01.3
O print: 23 41 47.24 +57 31 01.6
...or 0".8 due south of the position given on IAUC 5902.
I intend to do photometry of stars in the field to produce a comparison
sequence for the use of visual observers. Just waiting for clear sky now....
\Brian Skiff
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