A rarely imaged planetary nebula in constellation Pegasus, discovered by Rebecca Jones in 1941.

It‘s the remnant of a dying star, which is the blue star in the group of stars in the central region of the nebula, probably a white dwarf. Estimation of its distance range from 2300 to 2700 light years. The visible expanding shell emits mainly light of spectral lines of double ionized oxygen (OIII), hence its blue/green color.
Left of the nebula an extremely faint small hydrogen glow is barely visible.
This object is pretty faint and requires long exposure times, especially with this high F-number telescope. The image suffers also from oversampling, slightly incorrect backfocus and some walking noise in the background. So I hope to visit it again with some more appropriate equipment in some more clear nights.

Celestron EDGE HD8 at Prime Focus F=2080mm, F/10
Skywatcher EQ6R Pro mount
ASI2600mc Pro
No filter
Bortle 4-5
No moon

209x180s
13x60s (10h40m)

PixInsight