Year
afọ
| obere ụdị nke | time interval, orbital period  |
|---|---|
| dabere na | heliocentric orbit |
| Oke olee ahuru anya | duration |
| WikiProject na-elekọta ya | WikiProject Years |
| subdivision of this unit | quarter |
Otu afọ ma ọ bụ annus bụ oge orbital nke aru mbara ụwa, dịka ọmụmaatụ, ụwa, na-agagharị na orbit ya na gburugburu anyanwụ. N'ihi ntugharị axial nke ụwa, usoro nke otu afọ na-ahụ na-agafe oge, akara mgbanwe ihu igwe, awa nke ìhè ehihie, na, n'ihi ya, ahịhịa na ala ọmụmụ. Na mpaghara ihu igwe na nke subpolar gburugburu ụwa, a na-amata oge anọ: mmiri, ọkọchị, ụbịa na oyi. N'ebe okpomọkụ na mpaghara ebe okpomọkụ, ọtụtụ mpaghara mpaghara anaghị ewepụta oge akọwapụtara; ma n'oge okpomọkụ nke oge, a na-amata ma na-agbaso oge mmiri mmiri na ọkọchị kwa afọ.