Galaxy
Polar Ring Galaxy
A galaxy with a ring of stars over its poles.
A galaxy with an outer ring of gas and stars orbiting perpendicular to the main disc — usually the relic of a past merger.
Overview
A galaxy with an outer ring of gas and stars orbiting perpendicular to the main disc — usually the relic of a past merger.
See also
Dwarf Galaxy
A small galaxy with a few billion stars or fewer.
Ring Galaxy
A galaxy shaped like a luminous ring of stars.
Blue Compact Dwarf Galaxy
A small galaxy forming stars hard and fast.
Triangulum Galaxy (M33)
Third-largest galaxy in our Local Group.
Elliptical Galaxy
A smooth, featureless ball of old stars.
Lenticular Galaxy
A disc galaxy without spiral arms.