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IAUC 3566: Prob. N IN Sct; 1980u; 1980t

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IAUC number 

                                                  Circular No. 3566
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


PROBABLE NOVA IN SCUTUM
     S. W. Milbourn and D. Saw, British Astronomical Association,
report that David Branchett, Eastleigh, Hampshire, England, has
found a probable nova, as shown below.  R. Wood, Royal Greenwich
Observatory, reports a confirmation and accurate position by R.
Argyle and E. Clements from an astrographic plate:

     1981 UT             R. A. (1950) Decl.       Mag.   Observer
     Jan. 18.26667    18 43.8       - 4 58         8     Branchett
          20.25833    18 44 11.7    - 4 59 56      9     Argyle

     J. Mattei, AAVSO, communicates an approximate visual magnitude
estimate by J. Morgan, Prescott, AZ: Jan. 20.57 UT, ~ 10.


COMET PANTHER (1980u)
     No 1981 accurate positions of this comet have been reported.
The following ephemeris therefore continues that on IAUC 3558:

     1981 ET     R. A. (1950) Decl.     Delta     r      m1
     Jan. 26    19 06.05    +50 41.3    1.645   1.637    9.2
          31    19 09.86    +53 38.9
     Feb.  5    19 13.91    +56 59.0    1.547   1.640    9.1
          10    19 18.24    +60 42.9
          15    19 22.94    +64 51.6    1.457   1.654    9.0
          20    19 28.24    +69 25.3
          25    19 34.7     +74 22.9    1.390   1.678    9.0
     Mar.  2    19 44.0     +79 41 9
           7    20 06       +85 17.1    1.357   1.712    9.0

     Further visual estimates follow: Jan. 8.98 UT, m1 = 9.3, coma
2'.4 (J. Bortle, Stormville, NY, 0.32-m reflector); 9.12, m1 = 8.5,
coma 4'.5 (C. E. Spratt, Victoria, BC, 0.20-m reflector).


COMET BRADFIELD (1980t)
     The following visual estimates have been reported: Jan. 14.06,
m1 = 5.0, tail 3o.5 in p.a. 45o (P. Maley, Albuquerque, NM, 7 x 35
bin.); 15.03, m1 = 5.2, coma 2'.4, tail 2o.8. in p.a. 42o (Maley,
Houston, TX); 19.96, m1 = 6.2, tail 0o.5 in p.a. 35o (D. W. E. Green,
Cambridge, MA, 20 x 80 bin.); 20.95, 6.3, tail 1o.5 in 35o (Green).


1981 January 21                (3566)              Brian G. Marsden

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