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Status: STD 2005/06/07
Code: 129
Symbol: l.y.
EQ label: LENGTH
Quantities associated with this Unit

Quantity: length
Concept definition: The distance travelled in 1 year by light in vacuum.
1 l.y. = 9,460 730 x 1015 m (exactly).
Reference type: PR
Reference: [ISO 80000-3:2006, item 3-1.C.a]
Supplemental references:  

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