Similar to NGC_4308
らせん星雲
Helix Nebula
NGC 7331
NGC 7331
NGC 7424
NGC 7424NGC 7522
NGC 7522
NGC 7635
Bubble Nebula
M52 (天体)
Messier 52
NGC 7662
NGC 7662NGC 7727
NGC 7742
NGC 7742NGC 7752
NGC 7790
NGC 7790NGC 252
NGC 252NGC 1360
NGC 1360NGC 1961
NGC 1961
NGC 2169
NGC 2169NGC 2264
NGC 2264NGC 4666
NGC 4666NGC 5084
NGC 5084NGC 5315
NGC 5315NGC 5335
NGC 5335NGC 5634
NGC 5634NGC 5882
NGC 5882NGC 6099