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IAUC 3642: 1981 UA; Poss. COMET STATTMAYER; Occn OF SAO 187124 BY (88); 1981j; Corr

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IAUC number 

                                                  Circular No. 3642
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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


1981 UA
     S. J. Bus, California Institute of Technology, reports that S.
Dunbar has discovered a fast-moving asteroidal object with the
1.2-m Schmidt telescope at Palomar, as follows:

     1981 UT          R. A. (1950) Decl.       Mag.
     Oct. 21.30764    3 34.5     +47 32       16-17
          23.40625    3 31.0     +48 48


POSSIBLE COMET STATTMAYER
     R. M. West, European Southern Observatory, inspecting a
photograph (limiting magnitude 15.5) taken of M33 by J. Linder
(Ettlingen, W. Germany) on Sept. 7.07 UT, finds no object that can
be identified with the possible comet (cf. IAUC 3638).  Wide-field
exposures by J. Gibson (1.2-m Palomar Schmidt) on Sept. 20 and by
B. Skiff (0.3-m astrograph, Lowell Observatory) on Sept. 22 also
showed no trace of the object; the limiting magnitude of the Palomar
exposure was 18-19.


OCCULTATION OF SAO 187124 BY (88) THISBE
     G. Emerson, E. E. Barnard Observatory, Boulder, reports his
observation of the occultation of SAO 187124 by (88) Thisbe (cf. IAU
Comm. 20 Occultations Working Group Bull. No. 20) both visually
(0.08-m refractor) and photographically (0.22-m f/4 camera), giving
the times of the start and end of occultation as Oct. 7d02h01m43s.3
and 7d02h01m53s.2 UT, respectively.  The occultation was observed at
21o altitude and in perfect weather conditions (but the moon was
some 15o away), and no secondary events were noted.


PERIODIC COMET SWIFT-GEHRELS (1981j)
     J. E. Bortle, Stormville, NY, reports the following total visual
magnitude estimates, made with a 0.32-m reflector:  Oct. 17.01
UT, 12.6; 18.04, 12.7; 20.04, 12.7; 21.02, 12.6.


CORRIGENDUM
     On IAUC 2326, Nova (= V1500) Cygni 1975, the discovery
observation by Y. Sheffer (line 16) was made on Aug. 29.78 UT, not 29.83.


1981 October 26                (3642)              Daniel W. E. Green

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