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IAUC 6226: THE GALACTIC CENTER; C/1995 Q2

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                                                  Circular No. 6226
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
Phone 617-495-7244/7440/7444 (for emergency use only)


THE GALACTIC CENTER
     E. Churazov, M. Gilfanov, R. Sunyaev, A. Dyachkov, M. Denis,
M.-C. Schmitz-Fraysse, J.-P. Roques, and A. Goldwurm, on behalf of
GRANAT team (Space Research Institute, Moscow; Service
d'Astrophysique, Centre d'Etudes de Saclay; and Centre d'Etude
Spatiale des Rayonnements, Toulouse), report:  "On Sept. 9, the
SIGMA telescope aboard GRANAT started a new set of pointed
observations of the galactic-center region.  In a preliminary
analysis of the first 55000-s observation, the following sources
were detected in the band 35-150 keV:  GX 1+4, Terzan 2, 1E 1740.7-
2942, and (marginally) SLX 1735-269.  No bright sources were found
within the BATSE error box for GRO J1750-27 (IAUC 6222) or at the
position of KS 1732-273 (IAUC 6216).  With the instrument
calibration based on the last pointed-mode observations of the Crab
nebula (Mar. 1994), the 3-sigma upper limit in the band 35-150 keV
corresponds to about 75 mCrab.  GRANAT will continue pointed
observations of the galactic-center region until Sept. 20."


COMET C/1995 Q2 (HARTLEY-DRINKWATER)
     Ephemeris from orbital elements on MPC 25623:

1995 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Sept.10    20 47.14   -27 48.4   1.076   1.951  138.9   19.8   13.6
     15    20 16.40   -27 54.4   1.182   1.966  127.8   23.8   13.8
     20    19 52.04   -27 36.5   1.304   1.984  117.9   26.6   14.1
     25    19 33.13   -27 07.1   1.437   2.003  109.1   28.2   14.3
     30    19 18.62   -26 33.5   1.576   2.024  101.1   29.1   14.6
Oct.  5    19 07.56   -25 59.6   1.720   2.046   93.8   29.2   14.8
     10    18 59.18   -25 27.3   1.865   2.070   87.1   28.8   15.0
     15    18 52.89   -24 57.4   2.010   2.096   80.8   28.0   15.2
     20    18 48.25   -24 29.8   2.154   2.122   74.8   26.9   15.4
     25    18 44.92   -24 04.5   2.294   2.150   69.1   25.6   15.6
     30    18 42.63   -23 41.4   2.431   2.180   63.6   24.1   15.8
Nov.  4    18 41.19   -23 20.0   2.564   2.210   58.3   22.4   16.0
      9    18 40.43   -23 00.1   2.691   2.242   53.1   20.7   16.2
     14    18 40.22   -22 41.5   2.813   2.274   48.1   18.9   16.3
     19    18 40.46   -22 24.0   2.928   2.307   43.1   17.0   16.5
     24    18 41.08   -22 07.3   3.036   2.342   38.2   15.1   16.6
     29    18 41.99   -21 51.2   3.137   2.377   33.4   13.2   16.7


1995 September 12              (6226)            Daniel W. E. Green

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