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IAUC 3693: SN IN Anon GALAXY; 1982 HR; AM Her

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                                                  Circular No. 3693
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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


SUPERNOVA IN ANONYMOUS GALAXY
     J. Maza, Department of Astronomy, University of Chile, reports
the discovery by M. Wischnjewsky at the Cerro el Roble station of a
supernova 3" east and 14" south of the nucleus of a faint galaxy
located at R.A. = 13h18m.7, Decl. = -35o32' (equinox 1950.0).  On Apr. 16
the supernova was of photographic magnitude 18.


1982 HR
     Further precise positions have been reported as follows:

     1982 UT             R. A. (1950) Decl.        Observer
     Apr. 29.20550    16 01 15.04   - 0 56 47.2    McCrosky
     May   1.22160    15 50 16.66   - 1 17 11.8    Gibson
           2.48479    15 44 15.27   - 1 29 04.8      "

R. E. Mccrosky (Oak Ridge Observatory).  1.5-m reflector.
J. Gibson (Palomar Observatory).  1.2-m Schmidt telescope.

     The following orbital elements, by the undersigned, are well.
determined by parallax and satisfy the six available precise
positions within 2-3".

       T = 1982 Feb. 17.772 ET
   Peri. = 301.639                    e =   0.33335
   Node  = 189.256    1950.0          a =   1.22222 AU
   Incl. =   2.767                    n =   0.729425
       q =   0.81480 AU               P =   1.35 years

     1982 ET     R. A. (1950) Decl.     Delta     r     Mag.
     May   6    15 30.99    - 1 58.7
          11    15 17.51    - 2 38.4    0.137   1.142   17.3
          16    15 08.25    - 3 16.9
          21    15 01.90    - 3 55.9    0.193   1.196   18.2
          26    14 57.80    - 4 36.4
          31    14 55.53    - 5 18.7    0.258   1.248   19.1


AM HERCULIS
     Visual magnitude estimate (cf. IAUC 3689) by M. Verdenet,
Bourbon-Lancy, France: Apr. 16.10 UT, 14.7.


1982 May 5                     (3693)              Brian G. Marsden

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