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IAUC 2752: 1975b; NEW X-RAY SOURCE; 1975a

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IAUC number 

                                                  Circular No. 2752
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cable Address: SATELLITES, NEWYORK
Western Union: RAPID SATELLITE CAMBMASS


COMET KOHOUTEK (1975b)
     Dr. Lubos Kohoutek, Hamburg Observatory, Bergedorf, telexes
that he has discovered a comet, as follows:

     1975 UT          R. A. (1950) Decl.      m1
     Feb.  9.77222    3 47.2     +19 26       14
          27.78021    2 46.5     +15 47       13

The object is diffuse, with condensation or nucleus, nothing
reported about a tail.


NEW X-RAY SOURCE
     C. J. Eyles, F. D. Rosenberg, G. K. Skinner and A. P. Willmore,
Mullard Space Science Laboratory and Birmingham University, report
that Ariel 5 has observed a new x-ray source of approximately 1500
Uhuru counts per second close to the galactic center.  The position,
R.A. = 17h42m.55, Decl. = -29o.02 (equinox 1950.0), is accurate to +/- 3' but
is being improved by current observations, which will continue
until Mar. 1.


COMET BOETHIN (1975a)
     The following precise positions have been reported:

     1975 UT             R. A. (1950) Decl.        m1    Observer
     Feb.  8.42014     1 26 35.22   +13 52 40.3   12     Kojima
           8.43889     1 26 40.12   +13 53 13.9   11     Seki
           8.44583     1 26 41.85   +13 53 29.2            "
           9.45324     1 31 07.18   +14 23 35.6   12     Kojima
           9.46909     1 31 11.27   +14 24 01.9            "
          11.39931     1 39 40.75   +15 20 40.2   10     Tomita
          11.41736     1 39 45.57   +15 21 03.8            "
          11.42917     1 39 48.48   +15 21 30.1   11     Seki
          11.43889     1 39 50.92   +15 21 46.0            "

N. Kojima (Ishiki).  31-cm f/6 reflector.  Measurer: T. Seki.
T. Seki (Kochi Observatory, Geisei Station).  40-cm f/5 reflector.
K. Tomita (Tokyo Astronomical Observatory).  Measurer: H. Shibasaki.
   Comet diffuse with condensation.


1975 February 28               (2752)              Brian G. Marsden

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