1
Q
of Stars in a Galaxy
A
billions
2
Q
of Stars in Milky Way
A
400 billion
3
Q
of Stars in Our Solar System
A
1
4
Q
of Stars in a Star Cluster
A
100s to 1000s
5
Q
Smallest to Largest
A
moon - planet - star - planetary sys- star cluster - galaxy-galaxy cluster - supercluster.
6
Q
Distance to nearest Star
A
4.3 ly (Alpha Centauri)
