Arp 79 (NGC 5490C)
Arp 79 is the first of the class Spirals with Large
High Surface Brightness (HSB) Companions on Arms. It is the tiny spiral a
little below the center of the field. This is a two-Arp field, as the
large galaxy and companion above the center (near the bright star) make up Arp 117.
The "large" companion to Arp 79 is obviously large only relative to the size of the
primary. It is extremely difficult to find, even in the enlarged detail
The bright elliptical right at the bottom edge of the field is NGC 5490.
|10-inch Newtonian, StarlightXpress MX916, 30 minutes, 15.8' x 20.9'|