Engelsk navneord: date of reference | |||
1. | date of reference (om tid) (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded | ||
Termer med samme betydning (synonymer) | epoch | ||
Mindre specifikke termer | date | ||
Overordnet emneområde | astronomy, uranology | ||