Engelsk substantiv: 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 | ||
| Ord med samme betydning (synonymer) | epoch | ||
| Mindre spesifikke uttrykk | date | ||
| Overordnet kategori | astronomy, uranology | ||