Similar to NGC_3370
NGC 7635
Bubble Nebula
M52 (天体)
Messier 52
NGC 7662
NGC 7662
NGC 7752
NGC 7790
NGC 7790NGC 5315
NGC 50
NGC 50NGC 51
NGC 51NGC 53
NGC 53NGC 63
NGC 63NGC 252
NGC 252NGC 1360
NGC 1360
NGC 2169
NGC 2169NGC 4666
NGC 4666NGC 5084
NGC 5084