Astronomy students from Leiden University estimate 58 billion dwarf stars in Milky Way

Q.  Leiden University astronomers have estimated the number of dwarf stars in the entire Milky Way galaxy. What is the number?
- Published on 17 Mar 16

a. 55 billion
b. 58 billion
c. 60 billion
d. 65 billion

ANSWER: 58 billion
 
Leiden university astronomers have for the first time estimated there are 58 billion dwarf stars in the entire Milky Way galaxy. This results in a more comprehensive model for distribution of stars. Milky Way primarily comprises prominent, relatively flat disc with closely spaced bright stars, and a halo, a sphere of stars with a much lower density around it. Astronomers assume that the halo is the remnant of the first galaxies that fused together to form our Galaxy. About seven percent of the dwarf stars reside in this halo.

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