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Comet 123P/WEST-
Photometric data obtained by use of FOCAS-
10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD
COMET UTC +/-
-
123P 11/02/2019 21:29:17 14.45 13.75 13.46 13.26 13.11 13.00 22.8 17.0 B96
123P 11/02/2019 21:29:17* 0.00 0.00 0.00 0.00 0.00 0.00 1 4.0 CMC
123P 14/02/2019 23:02:59 14.38 13.66 13.36 13.18 13.03 12.93 25.8 17.7 B96
123P 14/02/2019 23:02:59* 0.02 0.01 0.02 0.03 0.03 0.03 3 3.8 CMC
123P 15/02/2019 23:14:34 14.37 13.66 13.35 13.16 13.02 12.91 23.1 17.6 B96
123P 15/02/2019 23:14:34* 0.02 0.02 0.02 0.01 0.01 0.01 3 3.9 CMC
123P 29/03/2019 22:51:38 14.77 14.02 13.67 13.44 13.26 13.13 28.7 18.0 B96
123P 29/03/2019 22:51:38* 0.02 0.02 0.03 0.03 0.03 0.03 6 3.7 CMC
123P 29/04/2019 20:29:22 15.57 14.86 14.47 14.21 14.03 13.91 22.1 17.6 B96
123P 29/04/2019 20:29:22* 0.02 0.05 0.04 0.05 0.07 0.07 7 3.3 CMC
123P 05/05/2019 20:41:02 15.70 14.94 14.54 14.25 14.04 13.90 18.2 17.7 B96
123P 05/05/2019 20:41:02* 0.03 0.04 0.03 0.03 0.03 0.03 8 3.4 CMC
123P 25/05/2019 21:15:47 16.22 15.43 14.98 14.67 14.44 14.29 15.5 17.2 B96
123P 25/05/2019 21:15:47* 0.02 0.04 0.02 0.03 0.04 0.04 5 3.2 CMC
123P 08/06/2019 22:08:19 16.47 15.69 15.24 14.99 14.83 14.73 10.6 17.4 B96
123P 08/06/2019 22:08:19* 0.06 0.06 0.04 0.03 0.03 0.01 3 3.9 CMC
AFRHO LOG
COMET UTC DELTA r BOX " MAG RSR CM +/-
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123P 11/02/2019 21:29:17 1.23 2.13 22.50 13.73 23 210 9 2.322 B96
123P 14/02/2019 23:02:59 1.22 2.13 22.67 13.65 26 224 9 2.351 B96
123P 15/02/2019 23:14:34 1.21 2.13 22.72 13.63 23 226 10 2.353 B96
123P 29/03/2019 22:51:38 1.30 2.17 21.23 14.03 29 186 6 2.270 B96
123P 29/04/2019 20:29:22 1.57 2.23 17.55 15.01 22 117 5 2.067 B96
123P 05/05/2019 20:41:02 1.64 2.24 16.82 15.14 18 113 6 2.055 B96
123P 25/05/2019 21:15:47 1.89 2.29 14.60 15.79 16 87 6 1.941 B96
123P 08/06/2019 22:08:19 2.08 2.33 13.26 16.13 11 80 8 1.903 B96
Discovery:
was discovered by Richard West on an ESO survey plate taken on March 14 and independently by Malcolm Hartley on a UK Schmidt plate taken on May 28. The comet has made no recent close approaches to Jupiter. It reached between 13th and 14th magnitude at the last return in 1996. It should achieve a similar brightness this time round, but is at its brightest early in the New Year after its 2003 December perihelion.