Parallactic second (parsec) is equal to _______.
A. 3.26 light year
B. 3.08 x 1016m
C. 3.08 x 1016m
D. both a & b
Answer:D
Parallactic second (parsec) is equal to _______.
A. 3.26 light year B. 3.08 x 1016m C. 3.08 x 1016m D. both a & b