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IAUC 5157: 1991b; 1989t; 1990c; V667 Cas = NSV 01098

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IAUC number 

                                                  Circular No. 5157
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 ARAI (1991b)
     H. Kosai, National Astronomical Observatory of Japan, telexes
the photographic discovery of a new comet by Masaru Arai, as
shown below:

     1991 UT             R.A. (1950) Decl.        m1    Observer
     Jan.  5.634      8 54.5       +12 10         12    Arai
           6.61840    8 52 15.09   +14 17 17.2           "
           6.62708    8 52 13.84   +14 18 28.3           "
           7.50659    8 50 07.38   +16 14 47.0    10    McNaught
           7.66690    8 49 42.75   +16 36 04.5             "

M. Arai (Yorii).  Measured by Kosai (assisted by G. Sasaki).  The
  Jan. 5 film, taken with a 0.16-m reflector, is overexposed and
  the image is near the edge of the frame.  The Jan. 6 exposures
  were taken with a 0.30-m hyperboloid astrocamera.  Comet diffuse
  with central condensation.
R. H. McNaught (Siding Spring).  Uppsala Southern Schmidt telescope.
  Comet strongly condensed; 2' coma.


PERIODIC COMET WILD 2 (1989t)
     Total visual magnitude estimates (cf. IAUC 5137):  1990 Nov.
22.55 UT, 11.9 (C. S. Morris, Pine Mountain Club, CA, 0.26-m reflector);
27.53, 12.2 (A. Hale, Las Cruces, NM, 0.41-m reflector); Dec.
18.51, 12.3 (Hale); 25.53, 12.4 (Hale).


COMET LEVY (1990c)
     Total visual magnitude estimates (cf. IAUC 5145):  1990 Dec.
12.79 UT, 7.2 (A. Pearce, Scarborough, W.A., 20x80 binoculars; 4'
tail in p.a. 265 deg); 18.80, 7.3 (Pearce); 25.54, 7.6 (A. Hale, Las
Cruces, NM, 10x50 binoculars).


V667 CASSIOPEIAE = NSV 01098
     Visual magnitude estimates (cf. IAUC 4948):  1990 Mar. 4.81 UT,
9.9 (A. Boattini, Florence, Italy); 26.86, 10.8 (A. Pereira, Cabo da
Roca, Portugal); June 27.10, [12.5 (R. Goncalves, Caxias, Portugal);
Nov. 1.07, 11.1 (Pereira); 17.87, 10.3 (Pereira).


1991 January 7                 (5157)             Daniel W. E. Green

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