Arp 253 is in the class Appearance of Fission. The Atlas note says "some
resolution of stars or H II regions". While these galaxies,
especially the W one, show an extreme amount of lumpiness, I think the lumps are
more likely star-forming regions than stars or H II regions. The 2x detail
image shows this best. The eastern galaxy is MCG
-1-25-32 and the western is MCG -1-25-31.
|10-inch Newtonian, StarlightXpress MX716, 30 minutes|