How do we know that the dwarf that Paul pointed out is actually a dwarf associated with NGC 253 and not a background galaxy? The radial velocity of PGC 198196 is a give away that it is not a dwarf...
How do we know that the dwarf that Paul pointed out is actually a dwarf associated with NGC 253 and not a background galaxy? The radial velocity of PGC 198196 is a give away that it is not a dwarf...
18" f/4.5 Obsession dob "Romela"
6" SkyQuest Orion dob
Garrett Optical 25x100
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