THE ASTRONOMER Electronic Circular No 778 1993 Sept 29 18.50UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
TELEX: 9312111261 Answerback: TA G TELECOM GOLD: 10074:MIK2885
GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH
GMH at UK.AC.CAM.ASTRONOMY.STARLINK STARLINK: CAVAD::GMH
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SUPERNOVA 1993Y IN UGC 2771
J. Mueller reports her discovery of an apparent supernova of mag
about 17, located 9" east and 37".6 north of the nucleus of UGC
2771 (R.A. = 3h28m.1, Decl. = +39 35', equinox 1950.0). The IIIa-J
discovery plate was taken by Mueller on Sept. 18 UT with the 1.2-m
Oschin Telescope in the course of the second Palomar Sky Survey.
A. V. Filippenko and T. Matheson, University of California
at Berkeley, report that CCD spectra obtained on Sept. 25 with the
Shane 3-m reflector at Lick Observatory show that the supernova is
of type Ia, but closer to 1 month past maximum brightness.
IAUC 5870
SUPERNOVA 1993Z IN NGC 2775
R. R. Treffers, et al., University of California at Berkeley report
their discovery of a supernova in NGC 2775
(R.A. = 9h07m41s, Decl. = +7 14'.5, equinox 1950.0), about 15" west
and 42" south of the galaxy's nucleus. The object (magnitude
R = 13.9 +/- 0.3) was found on Sept. 23 UT during the Leuschner
Observatory Supernova Search, which uses an automated 0.76-m
telescope equipped with the Lawrence Berkeley Laboratory CCD
camera. Confirmation was obtained on Sept. 24 at about the same
brightness. It could not be detected to a limiting magnitude of R
= 18.3 in images obtained on May 22. Spectra (range 310-990 nm,
resolution 0.6 nm) obtained on Sept. 25 with the Shane 3-m reflec-
tor at Lick Observatory reveal that the supernova is of type Ia,
about 4 weeks past maximum brightness.
IAUC 5870
NOVA LUPI 1993
Taichi Kato, Japan has advised us by e-mail of prediscovery image
of this nova recorded by Ichirou Okada of Australia with a 50mm
f/2 lens and Fujichrome P1600 film:
1993 Sept 16.465UT, mag 7.9.
V1113 CYGNI
Additional observations of the current rare outburst (cf E777):
1993 Sept 22.910UT, 14.6 John Day, Leicester, UK
22.914UT, 14.5 Bill Worraker, Didcot, UK
John Day further reports it was not seen on Sept 23.897UT.
Gary Poyner comments the star is visible on Atlas Stellarum on a
plate taken on 1969 July 14.
UY VUL, UZ VUL
A report was relayed by Gary Poyner that UY Vul, a star on the
Recurrent Objects Programme, had been recorded in outburst by
Tonny Vanmunster of Belgium on 1993 Sept 18.909UT at mv=14.3.
Subsequently Nick James succesfully photographed the event.
However the Editor notes that in 'A Catalog and Atlas of
Cataclysmic Variables' by Ronald Downes and Michael Shara (PASP,
105, 127-245, 1993 February) both UY Vul and also UZ Vul are not
listed as cataclysmics but as having M-star spectra. Accordingly
both stars are dropped from the Recurrent Objects Listings.