The speed that light travels at is about 186,000 miles per second.
A light minute is 11,160,000 miles.
A light hour is 669,600,000 miles.
A light day is 8,035,200,000 miles.
A light year is 2,932,848,000,000 miles

A Parsec is about 3.262 light years.

An astromonical unit is the distance from the Earth to the Sun, about 87 million miles as calculated by the Cassini. Prior to this is was believed to be 93 million miles.

Nearest Star to us - Proxima Centauri is 4.3 light years distant.

Nearest Galaxy to us - Sagittarius Dwarf Elliptical Galaxy was discovered to be the closest galaxy to our own in 1994 at only about 80,000 light years distant.

*figures are approximate.

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