Comet Near Vega? (4 Dec 2019)

[Christopher K.]

The green smudge looks like a celestial object, and I can certainly understand a wayward smudge with film--but this isn't film. Still, there's no proof that it's a comet.

Judah S. sent the pic to Josh F. for comment.

I did a cursory glance of the Vega area with Starry Night Pro Plus; I see no nebula or cluster. I also see no comet listed; The Starry Night can update its comet listings via prompting. I also don't see a bright comet of the appropriate RA and Dec on Yoshida's list...
http://www.aerith.net/comet/weekly/current.html

The picture in question...
https://www.instagram.com/p/B5sJKGkF6zQ ... n9f727o0ar