If a star is measured to have a parallax angle of 0.5 arcsec, how far away is the star? a. 2 ly
b. 2 pc
c. 0.5 pc

the formula is d=1/p
(astronomy)

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )