Axis

Astronomy

light-yearly

The distance light travels in vacuum during one Julian year.

Dimension
length
Canonical signature
L
System
astronomical
Exactness
Exact

Definition record

How this unit is defined

Canonical base
1 ly = 9,460,730,472,580,800 m
Conversion type
linear
Historical notes
A light-year measures distance, not time.
Aliases
light year, lightyears, light years

Same dimension

Related units

metresiminchimperial usinfootimperial usftmileimperial usmiyardimperial usydpixelcsspxnanometresinmquettametresiQm

Common conversions

Every conversion routes through the canonical base of the dimension.

1 ly = 9,460,730,472,580,800 m

Exact relationship

10 ly = 94,607,304,725,808,000 m

Exact relationship