Question

82. A star is 20 light years from the Earth.
How much time does it take for the light
from the star to reach the Earth ?
(A) 60 years
B) 20 years
2
(C) 6= years
2/3
(D) 15 years​

Answer 1

Answer:

There are currently 63 stars contained in the 53 stellar systems within 5.0 parsecs (16.3 light -years) of the Solar System. 50 of those stars ...