If 1 AU is the average distance from the earth to the sun (92.9x10^6 miles), how do you convert this to parsecs?
1 parsec=3.26 light years.
light year is the distance light travels in one year
186282 x 60x 60x24 x 365.242. in miles.
Speed of light=186282 miles per second.
1 AU=92.9x 10 ^6.
if you calculate this will come to 0.000004848136 parsec.
1 parsec = 206264.81.AU = 206264.81 X 92955807.27 miles =
For the conversion
Note that (1 parsec X 1'' exprressed in radian) = 1 AU.