Light year
A light-year or lightyear, symbol ly, is a unit of length. A common misconception is that a light-year is a unit of time, which is incorrect. A light-year is the distance light travels in vacuum in one Julian year.
Metric
- Kilometre (km)9.46×10¹²
- Metre (m)9.46×10¹⁵
- Decimetre (dm)9.46×10¹⁶
- Centimetre (cm)9.46×10¹⁷
- Millimetre (mm)9.46×10¹⁸
- Micrometre (µm)9.46×10²¹
- Nanometre (nm)9.46×10²⁴
- Angstrom (Å)9.46×10²⁵
Nautical
- Nautical mile5.11×10¹²
- Fathom5.17×10¹⁵
Astronomical
- Parsec (pc)0.31
- Light year1
- Astronomical unit (AE)63,241.09
- Light minute525,960.23
- Light second31,557,609.92