Abell 7 (PK 215 -30.1) is a 13 arc.minutes diameter measuring nearly round Planetary Nebula with very low surface brightness.Only Ha and OIII-lines helped to detect this object as you can it here.
This PN has an age of only 20.000 years with a very old central star aged some 10 billion years.Its real distance is about 1.800 light-years.
The small galaxy to the upper right (north is upside) is labeled as PGC16611.
position (epoch 2000):
Ra.: 05h 03m 07.53s
Decl.: −15° 36′ 22.7″
L = 10 x 1200s
RGB = 7 x 1200s each
Ha = 12 x 2400s
OIII = 12 x 2400s
a total of 26.33 hours
80cm f/7 AstroOptik Keller corrected cassegrain
FLI Proline 16803 Astrodon LRGB GenII filters
Prompt 7 CTIO/UNC Chile,remote controlled
image processing: Bernd Flach-Wilken
Here you find Abell 7 in a 22.2 arc-minutes-squared FOV.
For full resolution click HERE