Microparsec (μpc) is a unit of distance one-millionth of a parsec, 30.857 gigameters, 1.71545 light-minutes, or 0.206265 astronomical unit. This unit can be used in alternative to astronomical units, gigameters, kilometers, and miles to measure companion distances from the star, such as planets or companion stars. For example, Earth's distance from the Sun is 4.85 μpc while the nearest known exoplanet Proxima Centauri b is just 0.244 μpc from the parent star Proxima Centauri.
Object | Distance from the star |
---|---|
Proxima Centauri b | 0.24 μpc |
51 Pegasi b | 0.26 μpc |
Mercury | 1.88 μpc |
Venus | 3.51 μpc |
Earth | 4.85 μpc |
Mars | 7.39 μpc |
Ceres | 13.41 μpc |
Jupiter | 25.21 μpc |
Saturn | 46.24 μpc |
Uranus | 93.23 μpc |
Neptune | 145.72 μpc |
Pluto | 190.36 μpc |
Eris | 329.74 μpc |
Fomalhaut b | 550.34 μpc |
Sedna | 2514.10 μpc |
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