C/2017 W2/Leonard A new comet. Its magnitude is m1=19.1 by Astrometrica (UCAC-4). 2017.12.25.77532UT, 6*60s, 45cm F4.6 Reflector, FLI ML8300, 2 bin, 1/2 crop, taken at Fujimi-machi, Nagano, Japan by Kunihiro Shima. |
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