Astrology Chapter 25

Galaxy

a group of stars, dust and gases held together by gravity

Cassiopeia

Ursa Major

a large, cool star of high luminosity (brightness)

Red Giant

a very large, very bright red giant star

Supergiant

Draco

apparent brightness of a star if it were viewed from a distance

Absolute Magnitude

a star of extremely high density

Neutron Star

Ursa Minor

a massive star that has collapsed to such a small volume that its gravity prevents the escape of everything

Black Hole

an apparent group of stars originally named for mythical characters; 88 of them

Constellation

Cepheus

an exploding star that increases in brightness by many thousands of times

Supernova

a star that has exhausted all or most of its nuclear fuel and has collapsed to a very small size

White Dwarf

a theory that proposes the universe originated as a single mass that exploded

Big Bang Theory