| A | B |
|---|
| This is the theoretical end for a star above the Chandrasekhar Limit, in which they collapse to a point of infinite density. | Black Hole |
| A rotating neutron star that emits regular bursts of electromagnetic radiation. | Pulsar |
| These high redshift bodies give off an extremely high amount of radiation. They are active galactic nuclei, possibly due to matter falling into a supermassive black hole. | Quasar |
| Any natural sattelite of a planet or other small body. | Moon |
| A body that is orbiting a star or stellar remnant that is rounded by it's own gravity, but has no thermonuclear fusion. | Planet |
| This body generates energy through nuclear fusion, converting hydrogen into helium. | Main Sequence Star |
| This type of body forms from a star that is 0.5 to 6 stellar masses. It has fused all of it's hydrogen. It can go through helium fusion. | Red Giant |
| These objects are at the top of the Hertzsprung-Russel diagram. | Supergiant |
| These objects are the final life stage for low mass stars. They have no energy source. | White Dwarf |
| This body is the last state for stars that have a mass a little below the Chandrasekhar Limit. The electrons have collapsed into the nucleus. | Neutron Star |
| An extremely luminous stellar event that occurs when a star is heated due to the collapse of the star. | Supernova |
| This object is an interstellar cloud of gas, dust, and plasma. New stars and other bodies can be formed in these. | Nebula |
| This object is sometimes also called a minor planet or planetoid, they are often found in the inner solar system. | Asteroid |
| Body that orbits a star in a highly elliptical orbit, and has a tail that points away from the star. | Comet |
| A sand to boulder sized object that enters earth's atmosphere. | Meteor |
| A sand to boulder sized object that is in the solar system. | Meteoroid |
| This is a pair of stars or other stellar objects that orbit each other | Binary star system |
| A collection of galaxies, including the Milky Way, that moves through space as a single unit. | Local Group |
