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IAUC 3551: N Cyg 1980; 1980q; Prob. COMET LOVAS

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IAUC number 

                                                  Circular No. 3551
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


NOVA CYGNI 1980
     G. L. Grasdalen, M. Castelaz and R. D. Gehrz, Wyoming Infrared
Observatory, have used the 2.3-m telescope to determine the position
of this object as R.A. = 21h40m46s.22 +/- 0".06, Decl. = +31o13'45".1 +/-
1".0 (equinox 1950.0).  Infrared photometry on Dec. 6.08 UT gave the
following magnitudes: 2.3 um, 4.6; 3.6 um, 3.9; 4.9 um, 3.5; 10 um,
2.7; 20 um, > 1.6.

     H. Kosai, Tokyo Astronomical Observatory, also provides an
accurate position, measured by him from an exposure by Okamura on Dec.
3.48 UT (mpg = 10.0): end figures 46s.13, 45".0.


COMET MEIER (1980q)
     The following ephemeris continuation is from MPC 5651
(elements on MPC 5640):

     1980/81 ET  R. A. (1950) Decl.     Delta     r      m1
     Dec. 27    17 53.18    +24 01.4    2.018   1.542   10.4
     Jan.  6    17 52.61    +22 39.5
          16    17 51.23    +21 44.9    2.023   1.609   10.6
          26    17 48.48    +21 14.5
     Feb.  5    17 43.69    +21 06.4    1.916   1.717   10.8
          15    17 35.97    +21 18.5
          25    17 24.23    +21 47.6    1.728   1.856   10.9
     Mar.  7    17 07.10    +22 28.3
          17    16 43.15    +23 09.3    1.519   2.017   11.0
          27    16 11.53    +23 31.0
     Apr.  6    15 32.99    +23 07.6    1.393   2.194   11.1
          16    14 50.98    +21 38.1
          26    14 10.77    +19 04.6    1.468   2.380   11.6
     May   6    13 36.66    +15 52.6
          16    13 10.37    +12 31.5    1.768   2.571   12.3
          26    12 51.49    + 9 20.6
     June  5    12 38.73    + 6 27.2    2.219   2.767   13.2


PROBABLE COMET LOVAS
     No confirmation or denial of the existence of this object (cf.
IAUC 3547) has been reported.


1980 December 15               (3551)              Brian G. Marsden

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