Galaxy
Low Surface Brightness Galaxy
A galaxy fainter than the night sky itself.
Galaxies whose disc brightness is fainter than the night-sky background, making them hard to detect despite often being large.
Overview
Galaxies whose disc brightness is fainter than the night-sky background, making them hard to detect despite often being large.
See also
Triangulum Galaxy (M33)
Third-largest galaxy in our Local Group.
Lenticular Galaxy
A disc galaxy without spiral arms.
Irregular Galaxy
A galaxy with no clear shape or symmetry.
Dwarf Galaxy
A small galaxy with a few billion stars or fewer.
Dwarf Elliptical
A miniature elliptical galaxy.
Dwarf Spheroidal
An extremely faint, diffuse dwarf galaxy.