Or PN A66 21 also Sh2-274 ... but how many names give to an object !?
...so finished this Planetary Nebula in Hubble SHO palette.
Camera: Atik 414 Ex Mono
Objective: Ritchey-Chrétien Astrograph 10''
Poses: 27x 600''-Ha
Poses: 7x 600''-OIII
Poses: 3x 600''-SII
Pixinsight / Ps
Topic: Abell 21 (Read 7646 times)
