Mainly emitting radiation in the line of OIII,this Planetary Nebula Abell 72 shines in a very greenish colour.Sized 2.2’x2.0′ it is only a small one and with a magnitude of 13.8mag a difficult object for even bigger telescopes.
Its real distance isn´t know exactly till today.
The tiny galaxy to its south is named PGC 65491 and has a real distance of about 194 mio.light-years.
position (epoch 2000):
Ra.: 20h 50m 06.0s
Decl.: +13° 34′ 00″
LsynthRG(+OIII)B(+OIII) image from:
L=synth of all RGBs
a total of 11.33 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
This is a 20.5x20.5 arcmin. cropped FOV of the FLI´s detector-field.For full resolution click HERE.
here you can see a more detailed version of Abell72: