Light minute
A light minute is a unit of astronomical distance defined as the distance light travels through a vacuum in one minute. Equal to approximately 17,987,547 kilometres or roughly 0.12 astronomical units, it is directly derived from the speed of light in a vacuum (299,792,458 metres per second). It serves as a helpful benchmark in planetary science, noting that sunlight takes roughly eight light minutes to reach Earth.
Metric
- Kilometre (km)17,987,539.67
- Metre (m)1.8×10¹⁰
- Decimetre (dm)1.8×10¹¹
- Centimetre (cm)1.8×10¹²
- Millimetre (mm)1.8×10¹³
- Micrometre (µm)1.8×10¹⁶
- Nanometre (nm)1.8×10¹⁹
- Angstrom (Å)1.8×10²⁰
Nautical
- Nautical mile9,712,494.42
- Fathom9.84×10⁹
Astronomical
- Parsec (pc)5.83×10⁻⁷
- Light year1.9×10⁻⁶
- Astronomical unit (au)0.12
- Light minute1
- Light second60