A star with a parallax angle of 1/20 arcsecond is
A) 20 light-years away.
B) 1/20 parsec away.
C) 20 parsecs away.
D) 10 parsecs away.
Answer: C
A star with a parallax angle of 1/20 arcsecond is
A) 20 light-years away.
B) 1/20 parsec away.
C) 20 parsecs away.
D) 10 parsecs away.
Answer: C