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IAUC 5121: 1990 TR; N IN M31

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IAUC number 

                                                  Circular No. 5121
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


1990 TR
     S. Ueda and H. Kaneda have discovered a fast-moving asteroidal
object, and the following precise positions have been reported:

     1990 UT             R.A. (1950) Decl.       Mag.   Observer
     Oct. 11.46545    2 20 48.30   +19 28 27.1   13.5   Ueda
          11.48194    2 20 47.46   +19 28 53.0            "
          11.49757    2 20 46.82   +19 29 16.4            "
          15.51505    2 17 38.03   +21 03 36.4   13.5   Watanabe
          15.52604    2 17 37.31   +21 03 53.4            "
          17.71590    2 15 39.92   +21 51 10.6   13.5   Seki
          17.72517    2 15 39.40   +21 51 24.6            "
          18.63333    2 14 51.64   +22 09 33.3   14.0   Kawanishi
          18.64722    2 14 50.78   +22 09 50.2   14.0     "

S. Ueda and H. Kaneda (Kushiro).
K. Watanabe (JCPM Sapporo Station).
T. Seki (Geisei).
K. Kawanishi (Akou).

     Preliminary orbital elements by S. Nakano, Sumoto, Japan, from
7 of the above observations:

     T = 1990 Sept. 6.960 ET          Peri. = 340.312
     e = 0.37180                      Node  =  13.489   1950.0
     q = 1.23122 AU                   Incl. =   7.710
       a =  1.95993 AU     n = 0.359207     P =   2.74 years

     1990 ET      R.A. (1950) Decl.     Delta      r       V
     Oct. 16     2 17.20    +21 14.5    0.299    1.284    12.9
          26     2 07.92    +24 18.1
     Nov.  5     1 59.58    +26 14.4    0.363    1.347    13.3
          15     1 54.63    +27 16.9
          25     1 54.31    +27 46.2    0.481    1.426    14.4


NOVA IN M31
     J. Bryan, Georgetown, TX, reports his discovery of a nova in
M31, located at R.A. = 0h40m20s, Decl. = +41 40'.5 (equinox 1950.0),
or about 296" east and 87" north of the galaxy's center.  Bryan
provides the following B magnitudes:  Oct. 11.18 UT, [19.4; 13.16,
16.7; 14.20, 17.5.


1990 October 19                (5121)             Daniel W. E. Green

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