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IAUC 5607: 1992ax; 1992 NA

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                                                  Circular No. 5607
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@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


SUPERNOVA 1992ax IN ANONYMOUS GALAXY
     J. Mueller reports her discovery of a probable supernova in an
anonymous galaxy at R.A. = 22 08 24.01, Decl. = +44 47 04.2 (equinox
1950.0).  The object is 19".5 south of the galaxy's nucleus and had a
blue magnitude of approximately 18.5 on a plate taken on Sept. 3 by C.
Brewer and Mueller with the 1.2-m Oschin Telescope in the course of
the second Palomar Sky Survey.  A spectrum obtained Sept. 5 by S. M.
Hughes, J. R. Mould and M. Rich with the double spectrograph on the
5-m Hale telescope shows broad absorption at 640 nm, indicating that
the object is probably a type I supernova.


1992 NA
     Continuation to the ephemeris on IAUC 5582:

1992 TT     R. A. (2000) Decl.     Delta      r    Elong. Phase      V
Sept. 5     2 45.22    + 9 49.6    0.087    1.055  120.7   55.2     13.3
     10     3 18.35    +23 41.7    0.097    1.050  114.1   61.0     13.7
     15     3 47.14    +33 58.9    0.112    1.049  109.8   64.5     14.1
     20     4 11.35    +41 10.8    0.130    1.051  107.7   65.6     14.5
     25     4 31.01    +46 12.6    0.150    1.057  107.3   64.9     14.8
     30     4 46.37    +49 47.4    0.171    1.067  108.1   63.1     15.0
Oct.  5     4 57.72    +52 23.7    0.192    1.080  109.8   60.6     15.2
     10     5 05.36    +54 19.3    0.212    1.097  112.3   57.4     15.4
     15     5 09.50    +55 44.7    0.233    1.116  115.2   53.9     15.5
     20     5 10.29    +56 45.9    0.253    1.138  118.6   50.2     15.7
     25     5 07.94    +57 25.8    0.273    1.163  122.3   46.2     15.8
     30     5 02.86    +57 44.8    0.293    1.190  126.3   42.2     15.9
Nov.  4     4 55.69    +57 43.1    0.314    1.219  130.5   38.2     15.9
      9     4 47.15    +57 21.0    0.336    1.250  134.7   34.3     16.0
     14     4 38.02    +56 39.5    0.360    1.282  138.8   30.6     16.1
     19     4 28.99    +55 40.2    0.385    1.315  142.6   27.1     16.2
     24     4 20.69    +54 25.7    0.414    1.350  145.9   24.2     16.4
     29     4 13.62    +52 59.6    0.445    1.385  148.5   21.9     16.5
Dec.  4     4 08.06    +51 25.9    0.479    1.421  150.1   20.3     16.7
      9     4 04.11    +49 48.6    0.518    1.458  150.5   19.4     16.9
     14     4 01.73    +48 11.2    0.559    1.495  149.9   19.3     17.1
     19     4 00.80    +46 36.2    0.605    1.532  148.3   19.7     17.3
     24     4 01.19    +45 05.5    0.655    1.570  145.9   20.6     17.6


1992 September 5               (5607)              Brian G. Marsden

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