Astronomical data

This page contains general astronomical data.
For the outer planets see: Outer planets
For the Sun and inner planets see: Sun and inner planets
For the whole Solar System see: Planetary data
For galaxies catalogue see: Galaxies catalogue

Astronomical unit (AU)	1.496X1011 m = 8.31 light minutes
Light year	9.461x1015 m = 63240 AU = 0.3067 parsecs
Parsec (pc)	3.06x1016 m = 3.261 light years
Megaparsec (Mpc)	3.06x1022 m = 3.261x106 light years
Hubble constant	72 kms-1Mpc-1