Chapter 24 Beyond Our Solar System Word List

Absolute magnitude Apparent magnitude Barrel spiral galaxy Big bang Black hole Bright nebula Dark nebula Degenerate matter Elliptical galaxy Emission nebula Eruptive variables Galactic cluster

Hertzsprung-Russell (H-R) diagram Hubble’s law Hydrogen burning Interstellar dust Irregular galaxy Light-year Local Group Magnitude Main-sequence stars Nebula Neutron star

Nova Planetary nebula Protostar Pulsar Pulsating variables Red giant Reflection nebula Spiral galaxy Stellar parallax Supergiant Supernova White dwarf