茧星云

茧星云

红外暗云 G11.11-0.12

红外暗云 G11.11-0.12

NGC2903 HST

NGC2903 HST

NGC2903

NGC2903

M64

M64

M31

M31

M44

M44

银河长卷

银河长卷

狼蛛星云

狼蛛星云

NGC4151

NGC4151