| A | B |
|---|
| binary star | member of a double star system |
| constellation | group of stars that form a pattern |
| nova | star that suddenly increases in brightness |
| nebula | massive cloud of dust and gas between the stars |
| galaxy | huge collection of stars |
| spiral galaxy | galaxy that is shaped like a pinwheel |
| elliptical galaxy | galaxy that may vary in shape from spherical(round) to flat |
| Brunswick- de Groot | the best teacher in the entire galaxy |
