Esprit S.F.

S.F. F. & F. Culture (Science-Fiction, Fantasy & Fantastic)

Dico S.F. – Light year

Contrary to its name could make us think, a light year is not a time unit, but a distance unit of measurement used in astronomy. It correspond to the distance travelled by the light in one year in the vacuum.

One light year is approximately equal to 9500 billion kilometres (9.5×1012 km).

Matching words : Parsec, Astronomical unit

Updated: 6 April 2020 — 9 h 41 min

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