- 2021-12-06
C/2021 A1 Leonard Comet First half
C / 2021 A1 Leonard Comet 2121-11-26-12-05 45 cm / 20 cm Newtonian ASI071MC Pro The progress of the comet approach (first half) is summarized. There was moonlight in November, and the image of the tail was faint, but after December 3, there was no moonlight, and yellow dust can be clearly seen. The approach to the globular cluster M3 became a beautiful image. I am looking forward to future changes.