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THE ASTRONOMER Charts Sequence Notes    No  104 2001 Nov 30 20.37UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                         http://www.theastronomer.org
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UW PERSEI
A detailed report on the investigation of this object was published
in the Journal of the BAA Vol 107, No 2, p65 [1997]. Charles Robert
d'Esterre had reported it as a possible nova in 1912 but it was
only when the discovery plate was found in the annexe of the RAS
that it became possible to apply astrometry and analyse the
magnitude of the outburst.

Recently, Jeff W.Robertson, Department of Physical Sciences,
Arkanas Tech University, USA has been in touch with the editor
regarding the identification of this object which clearly has a
bearing on the existing TA (c) format chart under the revision date
of '941025'. 

In the paper by Robertson et.al., (Astronomical Journal, 119:
1365-1374, 2000 March), astrometry and photometry of the small
field around the suspect are reported, derived from imaging with
the WIYN 3.5-m telescope at Kitt Peak, Arizona:

Star          RA (2000)   DEC (2000)      V    B-V
UW Per   02h 12m 29.54s +57 05' 18.46" 19.860 0.514
Star A   02  12  29.74  +57 05  19.43  17.701 1.142
Star B   02  12  29.27  +57 05  20.29  18.815 1.060
Star C   02  12  28.61  +57 05  17.88  18.866 1.616

Astrometry by Brian Manning for the discovery plate of 1912 Jan 9
yields:
UW Per   02  12  29.02  +57 05  15.8

The editor further notes that the star 'S' on the TA chart given as
magnitude 18.5 may be the same object as star 'C' by Robertson.
Brian Manning's measurement of this object from the discovery plate
gave end figures: RA 28.60s and DEC 18.1" relatively close to
position by Robertson and inferring that measurement from the
d'Esterre plate had yielded quite accurate results.

Whilst this is still be investigated, it seems unlikely that the
true UW Persei is any of the four objects listed in the paper by
Robertson and we still await another outburst to refine our chart
further.

Guy M Hurst