Planetary Nebula Abell 2
Most of these 86 PNs discovered by Abell on the POSS photo plates are large and have a low surface brightness, which suggests that their stage of development is advanced. The PN is approximately 3.9 kpc away 
|Designations||PN G122.1-04.9: A 2, PK 122-04.1, A55 2, ARO 202, VV' 6|
|Right Ascension (J2000.0)||00h 45m 36s|
|Declination (J2000.0)||+57° 57' 24"|
|Radial Velocity||-41.8 km/s ± 3.1 km/s|
|Expansion Velocity||34. km/s (O-III)|
|C-Star Designations||AG82 7|
|C-Star Magnitude||20.07 mag (B filter)|
The planetary nebula Abell 2 is located in the constellation Cassiopeia, about 1 ° west of the 3.4 mag bright star Achird (η Cassiopeiae). The best observation time is July to January.
Description pending ...