The correct answer is a: 2M1207 is a brown dwarf that is orbited by its own planet and is 170 light years away from Earth.
What does 2M1207 mean?
A a brown dwarf that is orbited by its own planet and is 170 light years away from Earth
b the first red dwarf to be discovered in 1922
c a brown dwarf that is a star
d the closest star to Earth
1 answer