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Comet 94P/RUSSELL - (= 1984d = 1989 g1)

94P on Cometograpy

Data obtained by use of  FOCAS-II software

                                   10x10  20x20  30x30  40x40  50x50  60x60   SNR   SB   COD

OBJECT        DATE       TIME        +/-    +/-    +/-    +/-    +/-    +/-     N  FWHM  CAT

------------  ---------- --------  -----  -----  -----  -----  -----  -----  ----  ----  ---

94P           05/12/2016 04:49:35  18.47  18.18  17.96                        5.1  16.4  B96

94P           05/12/2016 04:49:35*  0.37   0.56   0.50                          4   3.6  USN

94P           13/02/2023 21:00:34  17.30  17.05  17.02                       16.9  18.2  B96

94P           13/02/2023 21:00:34*  0.01   0.02   0.07                          2   3.3  Gai

                                                                     AFRHO         LOG

COMET         UTC                   DELTA    r    BOX "   MAG   RSR    CM    +/-  AFRHO  OBS

------------  -------------------   -----  -----  -----  -----  ---  -----  ----  -----  ---

94P           05/12/2016 04:49:35    2.66   2.25  10.38  18.46    5     14     3  1.150  B96

94P           13/02/2023 21:00:34    1.39   2.32  19.80  17.10   17     15     1  1.162  B96

Discovery as comet 1984d: ( IAUC 3926 )

 The comet was  discovered by Ken Rusell on photographic plates taken by M. Hawkins on March 7, 1984. In the discovery images, Russell estimated that the comet had an apparent magnitude of 13 and a noticeable tail of 5 arc minutes. In the year of discovery, the comet had come to perihelion in January 1984. Although it then had an orbital period of 6.39 years, an analysis of its orbit reveals the period had been longer in the recent past. The comet had passed 0.68 AU from Jupiter on 1975 March 6. Prior to this date, the orbital period had been 6.9 years. Prior to a close approach of 1.05 AU from Jupiter on 1938 August 6, the period had been 6.6 years. The comet has been seen at every return since its discovery.

Recovery as comet 1989 g1: ( IAUC 4932 )

J. Gibson, OAO Corporation and Jet Propulsion Laboratory, reports his recovery of this comet on 1989 dec. 11 with the Palomar 1.5-m reflector (+ CCD + Gunn r filter), as indicated below.  The object is stellar within the limits of seeing.  Improved orbital elements by B. G. Marsden, Center for Astrophysics, calculated that requires a correction of Delta(T) = -0.6 day

Further returns as comet 94P/RUSSELL:

The 1997 apparition was a very favorable return with the closest distance from Earth being 1.26 AU in late March 1997. At that time the magnitude was typically estimated as about 14