(Redirected from Light minute)A 'light-minute' (also written 'light minute') is a
unit of length. It is defined as the
distance light travels in an absolute
vacuum in one
minute or
17,987,547,480 metres (~18 Gm). Note that this value is exact, since the metre is actually defined in terms of the
light-second.
To give an example, the average distance from the
Earth to the
Sun (or 1
astronomical unit) is about 8.317 light-minutes.
See also
★
Light-hour
★
Light-second
★
Light-year
★
Speed of light