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IAUC 4841: 1989r; P/GUNN; VY Aqr

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IAUC number 

                                                Circular No. 4841
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 OKAZAKI-LEVY-RUDENKO (1989r)
     H. Kosai, National Astronomical Observatory of Japan, reports
the independent photographic discovery of this comet by Kiyomi
Okazaki, as noted below.  The following precise positions also have
been reported:

     1989 UT             R.A. (1950) Decl.       m1    Observer
     Aug. 24.50243   15 28.7       +34 22        13    Okazaki
          26.88056   15 24 22.07   +34 06 31.7         Pollas
          26.90833   15 24 19.97   +34 06 25.7           "
          27.21215   15 23 47.54   +34 04 47.2         Tatum
          28.21910   15 22 02.89   +33 59 08.3           "

K. Okazaki (Kahoku-machi, Yamagata-ken, Japan).  0.25-m Schmidt
  camera + T-Max 400 film.  Comet diffuse with central condensation.
C. Pollas (Observatoire de la Cote d'Azur, Caussols).  0.90-m Schmidt
  telescope.
J. Tatum (Victoria).

     Total visual magnitude estimates:  Aug. 27.10 UT, 9.9 (D. W. E.
Green, Ashfield, MA, 0.15-m refractor; 5' coma); 28.20, 10.4 (D. Levy,
Tucson, AZ, 0.40-m reflector; faint, fanned 4' tail in p.a. 70 deg).
     Corrigendum.  On IAUC 4840, the discovery instrument used by
M. Rudenko is a 0.15-m refractor.


PERIODIC COMET GUNN
     Total visual magnitude estimates (cf. IAUC 4799):  June 24.55
UT, 12.3 (A. Pearce, Perth, W. Australia, 0.25-m reflector); July
3.24, 13.0 (A. Hale, Las Cruces, NM, 0.41-m reflector); 7.27, 13.1
(Hale); 29.22, 12.8 (C. S. Morris, Pine Mountain Club, CA, 0.26-m
reflector); 31.20, 13.1 (Morris); Aug. 5.23, 12.8 (Morris); 6.22,
13.1 (Morris, Lockwood Valley, CA, 0.51-m reflector); 24.21, 13.5:
(Morris; comet very low).


VY AQUARII
     Visual magnitude estimates (cf. IAUC 4834):  Aug. 14.84 UT,
13.7 (E. Schweitzer, Strasbourg, France); 17.09, [15.5 (M. Verdenet,
Bourbon-Lancy, France; during lunar eclipse).


1989 August 28                 (4841)             Daniel W. E. Green

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