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IAUC 5133: 1990 VB; P/SCHWASSMANN-WACHMANN 1

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                                                  Circular No. 5133
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 VB
     C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
of a fast-moving asteroidal object on photographs taken with
the 0.9-m CERGA Schmidt telescope:

     1990 UT             R.A. (1950) Decl.        V
     Nov.  8.79453   22 12 31.75   +22 36 15.3    17
           8.80980   22 12 36.37   +22 36 06.2
           8.82054   22 12 40.16   +22 35 58.1
           8.84769   22 12 47.93   +22 35 42.9
           9.76111   22 17 39.04   +22 26 03.4
           9.80278   22 17 51.11   +22 25 38.9
          12.77465   22 33 28.69   +21 52 24.6
          12.81748   22 33 41.34   +21 51 56.4

     Preliminary orbital elements by B. G. Marsden, Center for
Astrophysics, from 5 observations Nov. 8-12:

     T = 1990 Oct.  3.214 ET          Peri. =  99.984
     e = 0.50961                      Node  = 255.200   1950.0
     q = 1.14988 AU                   Incl. =  14.301
       a =  2.34484 AU     n = 0.274495     P =   3.59 years

     1990 ET      R.A. (1950) Decl.     Delta      r       V
     Nov.  5    21 52.32    +23 13.1    0.405    1.209    17.1
          10    22 18.91    +22 23.6
          15    22 44.98    +21 26.3    0.438    1.247    17.2
          20    23 10.11    +20 24.9
          25    23 33.99    +19 23.3    0.491    1.293    17.5
          30    23 56.45    +18 24.4
     Dec.  5     0 17.41    +17 30.6    0.563    1.345    17.8


PERIODIC COMET SCHWASSMANN-WACHMANN 1
     Total visual magnitude estimates (cf. IAUC 5103):  Sept. 27.79
UT, 13.0 (A. Pearce, Scarborough, W.A., 0.41-m reflector); 28.80,
13.2 (Pearce); Oct. 14.21, 13.5 (C. S. Morris, Lockwood Valley, CA,
0.51-m reflector); 21.90, [12.8 (H. Dahle, Oslo, Norway, 0.20-m
reflector); Nov. 9.25, 12.7 (A. Hale, Las Cruces, NM, 0.41-m reflector).


1990 November 13               (5133)             Daniel W. E. Green

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