... Polar Ring Galaxy NGC 660 . ... Over 20 million light-years away and swimming within the boundaries of the constellation Pisces , NGC 660's peculiar appearance marks it as a polar ring galaxy . A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk. ... Broader than the disk, NGC 660's ring spans over 50,000 light-years. ... Публикации со словами: polar ring - galaxies - галактики . ...