Planetary Nebula Pk 122-4.1 in Cassiopeia

Pk 122-4.1, a planetary nebula
CCD image taken with an ST-9E CCD camera thru Kopernik's 20-inch F/8.1 telescope. The image scale is about 7.5 x 7.5 arc minutes, with south at the top. The exposure was 12 minutes, under poor conditions. Note that the 20th magnitude central star is just visable.

Description of Pk 122-4.1 in
The Deep Sky Field Guide to Uranometria 2000:

Planetary Nebulae: To learn more about them, click here.