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IAUC 4755: 1989j; U Gem; 1989B; N Vul 1987

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IAUC number 

                                                  Circular No. 4755
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


COMET SHOEMAKER-HOLT (1989j)
     Carolyn S. Shoemaker, Eugene M. Shoemaker, and Henry E. Holt
report their discovery of another comet, as indicated below:

     1989 UT           R.A. (1950) Decl.        m1       Observer
     Mar.  9.336      10 45.5      +31 58      13        Shoemaker
          10.212      10 44.9      +31 58      13.5      Hale

C. S. Shoemaker, E. M. Shoemaker, and H. E. Holt (Palomar).  0.46-m
   Schmidt telescope films.  Comet diffuse with strong central
   condensation; 2' fan tail to the southwest.
A. Hale (Las Cruces, NM).  Visual observation, 0.41-m reflector.


U GEMINORUM
     This object is again in outburst, as indicated by the following
visual magnitude estimates (cf. IAUC 4696):  1988 Dec. 26.89 UT, [13.3
(P. Schmeer, Bischmisheim, West Germany); 1989 Mar. 6.89, 13.8 (Schmeer);
7.97, 12.9 (J. D. Shanklin, Cambridge, England); 8.10, 12.4 (P. Sventek,
Houston, TX); 9.05, 9.6 (Schmeer); 9.06, 9.2 (Sventek); 9.80, 9.7 (Schmeer).


SUPERNOVA 1989B IN NGC 3627
     R. Stapleton, St. Andrews University Observatory, forwards the
following densitometer magnitude estimates from IIa-O plates
(obtained with the 0.9-m Cassegrain-Schmidt telescope) by A. Packer:
Feb. 25.9 UT, 13.2 +/- 0.2; Mar. 4.9, 13.6 +/- 0.1.
     Further visual magnitude estimates (cf. IAUC 4745):  Mar. 1.93
UT, 13.5 (R. Monella, Covo, Italy); 3.23, 13.0 (R. Royer, Lakewood, CA);
5.33, 13.1 (Royer); 6.96, 13.6 (P. Schmeer, Bischmisheim, W. Germany);
7.96, 13.6 (J. D. Shanklin, Cambridge, England); 9.27, 13.4 (Royer).


NOVA VULPECULAE 1987
     Visual magnitude estimates, unless otherwise noted:
1988 Dec. 6.70 UT, 12.9 (A. Boattini, Florence, Italy); 14.8, 13.0
(A. Mizser, Budapest, Hungary); 1989 Feb. 2.50, 13.5: (R. Royer,
Wrightwood, CA); Mar. 4.56, [14.4 (Royer, Lakewood, CA; photovisual).


1989 March 10                  (4755)             Daniel W. E. Green

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