Comet C/2021 A1 (Leonard) is currently visible near the globular cluster M3 in the pre-dawn morning sky.
Articles on Comet Leonard can be found at the following URLs:
https://www.universe...ns-in-december/
https://earthsky.org...brightest-2022/
https://britastro.org/node/26346
https://www.space.co...in-december-sky
https://skyandtelesc...et-leonard-get/
https://skynews.ca/t...vmzqecqFCc7xfgM
Magnitude estimates are posted at https://cobs.si/recent and light curves at https://cobs.si/anal...209&plot_type=0 and http://www.aerith.ne...1A1/2021A1.html and http://astro.vanbuit...nl/comet/2021A1
Finder charts are available at https://www.cometchasing.skyhound.com/ and https://theskylive.c...d-info#position and in the comets section of the Heavens Above website.
An article on Comet Leonard appears on pages 48 and 49 of the December 2021 issue of Sky & Telescope.
A spectacular image (click to enlarge) of the comet when it passed by NGC 4631 (the Whale Galaxy) and NGC 4656 (the Hockey Stick Galaxy) can be seen at http://www.alpo-astr..._A1-LRGB_112421