#UMPlus - Abell 1 by Gary Imm
https://www.universomagico.net/2022/06/abell-1-por-gary-imm.html
Abell 1, also cataloged as PN A66 1 and seen here in an excellent image by astronomer Gary Imm, is a young planetary nebula that lies in the direction of the Constellation Cepheus at a distance of about 8,200 light-years from the Solar System. . Given its distance and its apparent size in the sky of 50 seconds of arc, it follows that it is 2 light-years across. The outer edge of this nebula appears to be shaped like a.....