The Comet, the Surfboard and the Owl.

Comet 41P/Tuttle-Giacobini-Kresak march 22, 2017 20:00-20:45 UTC near M108 and M97. Esprit 100 triplet APO/ Canon6Da. 17x120 seconds for the comet (Stacked in DeepSkyStacker Cometmode) and 40x240 sec iso1600 (17+18 march 2017). Both stacks combined with pixelmath in Pixinsight. Images for both stacks have the exact same center and orientation.

This image has been published in Nature Astronomy Magazine feb 2018 in article "Slow and growing slower"

twitter.com/search?q=%22Slow%20and%20growing%20slower%22&...

twitter.com/nresearchnews/status/955554936665886720

Knight Observatory, Tomar