C/2021 A1 (Leonard) On 2021 Dec 14 16h56 UT TEL 0.4-m f/2.8 reflector + CCD Atik460ex 5x3s (IR filter) m1 = 5.8 (0.4') m2 = 6.3 (5.8") comp-star SAO 161234 (mag. 8.2 B2 type) On 2021 Dec 14 16h56 UT
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