Astronomy Flashcards
1
Q
Planet
A
Spherical objects of matter that orbit a star.
2
Q
Moon
A
A solid object that orbits a planet.
3
Q
Inner Planets
A
Relatively small rocky (terrestrial) planets. Mercury, Venus, Earth, Mars.
4
Q
Star
A
A really large sphere of reacting gas. (Sol. A million times larger than Earth)
5
Q
Outer Planets
A
Gas giants. Jupiter, Saturn, Uranus, Neptune
6
Q
Dwarf Planets
A
Smaller than planets but do orbit the sun in an incredibly long oval shaped orbit.
7
Q
Solar System
A
Collection of objects orbiting a parent star.
8
Q
Constellation
A
Artificial grouping of stars that humans named.
