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IAUC 3913: SN IN Anon GALAXY; 1983n; NEW IR SOURCE; 2CG 195+04 = 'GEMINGA'; V1343 Aql

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                                                  Circular No. 3913
Central Bureau for Astronomical Telegrams
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM     Telephone 617-864-5758

     J. Maza, Department of Astronomy, University of Chile, reports
the discovery by L. E. Gonzalez at Cerro El Roble of a possible
supernova 1" east and 6" south of the nucleus of an anonymous
spiral galaxy at R.A. = 5h48m0, Decl. = -24deg02' (equinox 1950.0).
The object was recorded on Jan. 3 at mpg = 18.0.

     Further precise positions will be published on the MPCs.
Orbital computations by D. K. Yeomans, Jet Propulsion Laboratory,
show that this comet has a very slight secular acceleration  (A2  =
-0.0004 from observations 1873-1984, A2 = -0.0008 from observations
1928-1984); for current ephemeris purposes the orbital elements
on IAUC 3886 are quite adequate.  Further visual magnitude
estimates: Jan. 25.98 UT, 10.5 (J. Bortle, Stormville, NY, 0.32-m
reflector); 29.15, 9.9 (C. S. Morris, Frazer Park, CA, 0.20-m
reflector); 30.07, 9.8 (R. Keen, Boulder, CO, 0.32-m reflector).

     E. R. Crane, Tucson, reports that his search of the near-
infrared photographic sky survey (NIPSS) has revealed an extremely
red star at R.A. = 4h52m04s, Decl. = +44deg27'6 (equinox 1950.0), that
may be identical with the 2.2-micron infrared source reported by Ashok
et al. (IAUC 3906).  At an estimated V ~ 15.5, V-I ~ 6, it is by far
the reddest star in the immediate vicinity.  The object appears
completely stellar, and examination of three sets of photographs
shows no evidence for large-scale brightness variations.

2CG 195+04 = 'GEMINGA'
     With reference to IAUC 3907, we point out that C. Vanderriest
told us that the position originally reported was possibly
incorrect--but not until IAUC 3892 had been printed.  He adds that
the upper limit on parallax and proper motion is still valid.

     Visual magnitude estimates by M. Verdenet, Bourbon-Lancy,
France: 1983 Sept. 24.8 UT, 15.0; 27.8, 14.4; 30.8, 14.6; Oct.
3.8, 14.2; 6.8, 15.2; 7.8, 15.6; 8.8, 15.2.

1984 February 1                (3913)              Brian G. Marsden

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