Assertion: light year | /r/DistinctFrom | 365.2425-day gregorian year
Facets:
Source sentences:
text: As defined by the IAU, the light-year is the product of the Julian year[note 2] (365.25 days as opposed to the 365.2425-day Gregorian year) and the speed of light (299792458 m/s).[note 3]