This post is also available in: 日本語 (Japanese)
C / 2021 A1 Leonard Comet 2021-12-27
Matsudaira-cho, Hitachiota City
You can see the comet well in the winter-type weather, the north wind is cold and the protection is painful. I don’t know the details of the tail at all.
The magnified image of the comet is a 20 cm newtonian F / 4.