Abell 4 (PK 144-15.1)
About
this Object
Abell 4
This planetary is one of the smaller
objects discovered by George Abell using the Palomar Sky Survey in the
mid 1960's.
It lies at RA 02 45 24 and
Dec +42 33 04 just to the SE of the open cluster M34. At
magnitude 16.7 and 25 arcsec in size, its a rather small planetary
nebula.
This image is a bicolor image take with Ha and OIII narrow band
filters. Red was mapped to Ha and Blue to OIII.
Image
Details
