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IAUC 5369: EF Peg; GAMMA-RAY BURSTS; 1991v

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IAUC number 

                                                  Circular No. 5369
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


EF PEGASI
     P. Schmeer, Bischmisheim, Germany, reports that this apparent
dwarf nova has undergone a rare outburst.  Available visual
magnitude estimates:  Oct. 14.913 UT, [13.0 (Schmeer); 15.779, 10.9
(Schmeer); 15.853, 10.7 (G. Poyner, Birmingham, England).


GAMMA-RAY BURSTS
     V. Schonfelder, Max-Planck-Institut fur Extraterrestriche Physik
(MPE), Garching, communicates on behalf of the COMPTEL collaboration
(located at MPE; University of New Hampshire, Durham; Leiden
Observatory; and Space Science Department, European Space Agency,
Noordwijk):  "The imaging Compton telescope COMPTEL onboard the
Gamma-Ray Observatory has imaged cosmic gamma-ray bursts on Apr. 25,
May 3, June 1, and Aug. 14 in its 1-sr field-of-view over the energy
range 1-30 MeV.  Using Maximum Entropy imaging techniques, direct
mapping of these events results in the following positions accurate
to 1 deg (listed as gamma-ray burst source indicating the date; UT;
and galactic coordinates, l and b):  GRB 910425, 0h37m48s, 229 deg,
-20 deg; GRB 910503, 7h04m15s, 171 deg, 7 deg; GRB 910601, 19h22m16s,
72.5 deg, -5 deg; GRB 910814, 19h14m35s, 95 deg, -28 deg."


COMET McNAUGHT-RUSSELL (1991v)
     Orbital elements from MPC 18994:

                    Epoch = 1992 May  18.0 ET
     T = 1992 May   3.2890 ET         Peri. = 257.1508
     e = 0.994524                     Node  = 119.7742  1950.0
     q = 3.196705 AU                  Incl. =  90.5341

     1991 ET      R.A. (1950) Decl.     Delta      r       m1
     Oct. 11    19 06.71    -55 36.6    3.685    3.740    16.6
          21    19 07.07    -55 56.3
          31    19 10.44    -56 15.2    3.875    3.648    16.6
     Nov. 10    19 16.60    -56 35.1
          20    19 25.34    -56 57.0    4.017    3.562    16.5
          30    19 36.45    -57 21.7
     Dec. 10    19 49.83    -57 49.2    4.094    3.483    16.5
          20    20 05.39    -58 19.7
          30    20 23.08    -58 52.9    4.097    3.413    16.4


1991 October 16                (5369)             Daniel W. E. Green

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