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Photometry (FOCAS) |
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astrometry |
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B96 (BRIXIIS) |
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B96 (BRIXIIS) |
Comet 104P/KOWAL
Info from Cometography from G. Kronk
Charles T. Kowal (Palomar Observatory, California, USA) discovered this comet on photographic plates exposed with the 122-
Although the comet's brightness was not expected to exceed magnitude 15 during the 1997-
Early in December of 2003, G. W. Kronk found that a previously unpublished comet discovery made by the Reverend Leo Boethin in January of 1973 was a prediscovery observation of comet 104P. Boethin (Bangued, Philippines) found the comet with his 8-
Kazuo Kinoshita has examined the orbital evolution of this comet for the period of 1946 to 2022. He found the orbit had undergone very little change from 1946 until an approach of 0.9827 AU from Jupiter on 1996 January 15. This encounter reduced the perihelion distance from 1.50 AU to 1.40 AU and reduced the orbital period from 6.38 years to 6.18 years. The encounter was also a sign of things to come, as, following the next perihelion date in 2004, the comet will pass 0.2819 AU from Jupiter on 2007 June 25. This will reduce the perihelion distance from 1.40 AU to 1.17 AU and the orbital period from 6.19 years to 5.90 years. Still another encounter in 2019 will further reduce the perihelion distance and orbital period.
10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD
COMET UTC +/-
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104P 15/09/2021 20:07:46 17.91 17.39 17.35 4.0 17.2 B96
104P 15/09/2021 20:07:46* 0.47 0.90 0.95 3 4.1 Gai
104P 22/09/2021 22:00:31 18.72 18.53 18.47 3.8 17.2 B96
104P 22/09/2021 22:00:31* 0.55 0.33 0.37 3 4.0 Gai
104P 24/10/2021 20:28:58 18.41 17.77 17.68 17.58 3.8 17.4 B96
104P 24/10/2021 20:28:58* 0.32 0.12 0.17 0.37 3 3.6 Gai
104P 27/10/2021 21:13:12 18.01 17.51 17.14 17.03 1.7 17.1 B96
104P 27/10/2021 21:13:12* 0.47 0.52 0.51 0.67 6 3.8 Gai
104P 24/01/2022 18:41:28 13.96 13.09 12.66 12.34 12.10 11.90 20.1 17.4 B96
104P 24/01/2022 18:41:28* 0.01 0.04 0.03 0.03 0.03 0.02 7 3.2 Gai
104P 11/02/2022 19:06:14 14.25 13.33 12.84 12.49 12.23 12.02 19.2 17.6 B96
104P 11/02/2022 19:06:14* 0.02 0.02 0.03 0.02 0.00 0.00 2 3.4 Gai
104P 25/02/2022 19:56:00 14.53 13.63 13.16 12.80 12.54 12.32 19.4 17.7 B96
104P 25/02/2022 19:56:00* 0.03 0.04 0.02 0.00 0.01 0.01 3 3.4 Gai
104P 03/03/2022 21:13:49 14.67 13.77 13.30 12.94 12.67 12.46 14.9 17.7 B96
104P 03/03/2022 21:13:49* 0.00 0.04 0.04 0.04 0.04 0.03 3 3.7 Gai
104P 04/03/2022 21:28:57 14.67 13.77 13.29 12.92 12.65 12.45 14.9 17.4 B96
104P 04/03/2022 21:28:57* 0.02 0.02 0.04 0.06 0.07 0.07 2 3.8 Gai
104P 09/03/2022 20:20:06 14.84 13.98 13.45 13.06 12.78 12.58 14.8 17.1 B96
104P 09/03/2022 20:20:06* 0.00 0.00 0.01 0.01 0.00 0.01 2 3.6 Gai
104P 23/03/2022 20:42:28 15.38 14.57 14.05 13.71 13.44 13.24 8.1 17.2 B96
104P 23/03/2022 20:42:28* 0.01 0.04 0.02 0.03 0.06 0.08 2 3.7 Gai
104P 27/03/2022 20:47:39 15.52 14.69 14.21 13.87 13.63 13.43 12.4 17.9 B96
104P 27/03/2022 20:47:39* 0.03 0.00 0.02 0.00 0.01 0.02 2 3.5 Gai
AFRHO LOG
COMET UTC DELTA r BOX " MAG RSR CM +/-
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104P 15/09/2021 20:07:46 0.84 1.81 33.02 17.23 4 3 1 0.448 B96
104P 24/10/2021 20:28:58 0.77 1.48 35.93 17.57 4 1 0 0.064 B96
104P 27/10/2021 21:13:12 0.77 1.45 35.94 17.07 2 2 1 0.250 B96
104P 24/01/2022 18:41:28 0.64 1.09 43.12 12.26 20 58 3 1.764 B96
104P 11/02/2022 19:06:14 0.66 1.15 41.95 12.44 19 58 3 1.765 B96
104P 25/02/2022 19:56:00 0.72 1.23 38.42 12.86 19 54 3 1.732 B96
104P 03/03/2022 21:13:49 0.76 1.27 36.39 13.06 15 53 4 1.725 B96
104P 04/03/2022 21:28:57 0.77 1.28 36.04 13.06 15 55 4 1.738 B96
104P 09/03/2022 20:20:06 0.81 1.31 34.26 13.28 15 52 4 1.719 B96
104P 23/03/2022 20:42:28 0.94 1.42 29.20 14.10 8 40 5 1.598 B96
104P 27/03/2022 20:47:39 0.99 1.45 27.82 14.31 12 37 3 1.573 B96
Photometry obtained from FOCAS-