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IAUC 3374: 1979d; eta Car; BHASKARA

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                                                  Circular No. 3374
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

     Kenneth Russell, U.K. Schmidt Telescope Unit, reports his
discovery of a comet on an exposure by P. R. Standen with the 122-cm
Schmidt telescope at Siding Spring.  The object is diffuse, with
condensation, and there is an indication of a tail on the first
exposure.  The following semiaccurate (+/- 10") positions are available:

     1979 UT             R. A. (1950) Decl.         m1
     June 16.44201    14 11 11.2    - 3 01 40      17
          24.45486    14 22 51.6    - 1 12 02      17

     R. Viotti and A. Giangrande, Laboratorio Astrofisica Spaziale;
and A. Cassatella, European Space Agency, report: "Analysis of
observations of eta Car with the International Ultraviolet Explorer
reveals the presence of undisplaced absorptions of highly ionized
species (C IV, Si IV and Al III), probably formed in a hot interstellar
plasma.  These lines and N V show broad envelope absorptions,
likely the low-ionization lines (Cassatella et al. 1979,
Astron. Astrophys. 71, L9).  They could be associated with the x-ray
glow suffusing the Carina Nebula and with x-ray emission from eta Car
itself recently found by HEAO 2 (Overbye 1979, Sky Telescope 57,
527).  C III seems to be present at 1909 A with a P-Cyg profile and
absorption extending to -200 km/s."

     U. R. Rao, Indian Space Research Organization Satellite Centre,
Bangalore; and B. V. Sreekantan, Tata Institute of Fundamental Research,
Bombay, telex: "India's second artificial earth satellite,
Bhaskara, was successfully launched into a near-circular orbit (Incl. =
500.7, altitude 535 km, P = 95.2 min) on June 7d10h30m UT.  The
payload includes a pinhole x-ray camera mounted with its look direction
along the satellite's spin axis and maintained perpendicular
to the orbital plane.  The camera has a position-sensitive proportional
counter at the image plane of the pinhole; the counter was
activated on June 22, and the system behavior is normal.  The payload
will be used primarily for the investigation of transient x-ray
sources and time variation of some well-known strong sources.
Further information can be obtained from us on request."

1979 June 28                   (3374)              Brian G. Marsden

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