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IAUC 5597: 1992q; 1992p; GRO J0422+32 = GRS 0417+335

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IAUC number 

                                                  Circular No. 5597
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


COMET HELIN-LAWRENCE (1992q)
     Eleanor F. Helin and Kenneth J. Lawrence have discovered a
comet on films taken with the 0.46-m Schmidt telescope at Palomar.
J. Alu and P. Rose assisted, and the latter measured the positions
below.  The object is slightly diffuse, with a strong condensation
but no perceptible tail:

     1992 UT             R.A. (2000) Decl.       m1
     Aug. 29.43102    2 03 53.36   -12 23 45.1   15
          29.44826    2 03 52.60   -12 24 12.8
          30.36181    2 03 23.45   -12 51 50.1   15
          30.46319    2 03 19.71   -12 54 55.0


COMET BREWINGTON (1992p)
     S. Nakano, Sumoto, Japan, communicates the following precise
positions by T. Seki, Geisei:

     1992 UT             R.A. (2000) Decl.       m1
     Aug. 29.77941    7 17 14.72   +36 50 48.5   14
          29.80555    7 17 19.10   +36 50 45.1
          29.81042    7 17 19.89   +36 50 44.9

Visually the comet has m1 = 11.3 and a coma diameter of 3'.5.  There
is a tail 5' long in p.a. 300 deg.


GRO J0422+32 = GRS 0417+335
     R. E. McCrosky, Harvard-Smithsonian Center for Astrophysics,
provides the following precise position, obtained with the 1.5-m
reflector + CCD at the Oak Ridge Observatory on Aug. 26: R.A. =
4 21 42.77, Decl. = +32 54 26.6 (FK5/J2000.0).  The corresponding
FK4/B1950.0 position is R.A. = 4 18 29.92, Decl. = +32 47 23.6.
J. Mueller, Palomar Observatory, provides the following 1950.0 end
figures, from a plate taken with the Oschin Schmidt on Aug. 15:
29.56, 26.3.  She notes that the object does not appear on the
Palomar Sky Survey prints (cf. IAUC 5594).

     Visual magnitude estimates by P. Schmeer, Bischmisheim, Germany:
Aug. 26.12 UT, 12.9; 27.09, 12.9; 28.10, 12.9.


1992 August 30                 (5597)              Brian G. Marsden

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