Beyond the Solar System

A collection of stars, dust, and gas bound together by gravity

A small, hot, dim star that is the leftover center of an old star

A star that has collapsed under its own gravity

The very largest of the large, hot, bright stars at the uppermost-left end of the main sequence on the H-R diagram

A large cloud of dust and gas in space

A large, reddish star late in its life cycle

A galaxy shaped like a flattened ball, containing only old stars.

An object whose gravity is so strong that nothing, not even light, can escape.

A galaxy that does not have a regular shape

The unit of measurement used beyond our solar system.

A graph relating the temperature and brightness of stars

A galaxy whose arms curve outward in a pinwheel pattern