Basic Astronomy terms Flashcards
1
Q
cluster
A
larger collections of galaxies
2
Q
supercluster
A
a region of the universe where galaxies are more densely packed than other regions of the universe.
3
Q
universe/cosmos
A
everything
4
Q
nebula
A
The glowing cloud of gas ejected from a low or intermediate mass star
5
Q
light year
A
the amount of distance light travels in a year; approximately six trillion miles
6
Q
AU
A
unit that is derived from the average distance between the center of the earth to the center of the sun
7
Q
parsec
A
distance = 1/(parallax angle)
8
Q
supernova
A
explosion of massive star
