Question

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

Answer 1

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.