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IAUC 4181: 1986 DA; 1985P

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                                                  Circular No. 4181
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 617-495-7244/7440/7444


1986 DA
     S. Nakano, Tokyo, reports that M. Kizawa, Shizuoka, has
discovered a minor planet of unusual motion.  The positions (measured
from Kizawa's films) and orbital elements below have been determined
by T. Urata.  The ephemeris magnitude is visual (V), derived
according to the new IAU precepts described on MPC 10193.

     1986 UT            R.A.   (1950.0)    Decl.        B

     Feb. 16.53427      9 59 49.97     +30 14 17.3     14.5
          16.57416      9 59 50.51     +30 14 49.3
          17.49792     10 00 14.08     +30 26 00.7     14.5
          17.50856     10 00 14.38     +30 26 09.4
          17.65886     10 00 16.62     +30 27 58.4
          17.68635     10 00 17.11     +30 28 17.6
          19.65958     10 01 09.64     +30 51 27.5     14.5
          19.68620     10 01 09.98     +30 51 43.1

         T = 1986 Apr. 6.2487 ET
     Peri. = 123.2482                    e =   0.539019
     Node  =  66.4558   1950.0           a =   2.534192 AU
     Incl. =   4.1631                    n =   0.2443120
         q =   1.168213 AU               P =   4.03 years

     1986 ET     R.A. (1950.0) Decl.      p        r       V

     Feb. 19    10 00.87    +30 43.9    0.308    1.284    13.7
     Mar.  1    10 06.65    +32 20.3
          11    10 16.63    +32 56.4    0.245    1.207    13.4
          21    10 32.99    +32 00.7
          31    10 56.38    +29 09.7    0.215    1.170    13.2
     Apr. 10    11 25.24    +24 15.0
          20    11 56.91    +17 34.8    0.217    1.179    13.3


SUPERNOVA 1985P IN NGC 1433
     Further photometric observations by H. Morrison and J. Lewis
at Siding Spring Observatory (see IAUC 4138): 1985 Oct. 16.7 UT, V
= 13.61, B-V = +0.12, V-R = +0.19; 18.7, -, -, +0.23; 19.7, -, -,
+0.22; Nov. 9.7, 13.77, +0.78, +0.32; 10.7, 13.79, +0.78, +0.29.

     Magnitude estimates by R. McNaught, Coonabarabran, N.S.W.:
1985 Nov. 13.68 UT, 13.8; 18.63, 14.0; Dec. 13.6, 14.3; 31.53,
14.6; 1986 Jan. 6.61, 14.7; 11.54, 14.8; 18.51, 15.0; 31.51, 15.5.


1986 February 20               (4181)              Brian G. Marsden

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