TROPIKHO

TROPIKHO (az yunoni tropekos) — doirai gardish), doirahoi parallely, doirahoi parallelii farazi, ki dar sathi kurai zamin az ekvator 23°27′ shimoltar va janubtar meguzarand. Shimoltar az akvator tropikhoi shimoli (yo madori Saraton), janubtar tropikhoi janubi (yo madori Jadi) voqe gashtaand. Dar ruzi inqilobi tobistonai Oftob (nigared Inqilobi Oftob) 21 e 22 iyun Oftob az nuqtai shimoltarini ekliptika guzashta, dar mahalhoi Tropiki shimoli nisfiruzi ba qiyom meoyad.

Dar in vaqt dar Nimkurai shimoli ruzi daroztarin va dar Nimkurai janubi shabi daroztarin faro merasayad. Inqilobi zimistonai Oftob boshad, ba 21 yo 22 dekabr rost meoyad, ki dar in vaqt dar mahalhoi tropikhoi janubi ruzi daroztarin va dar tropikhoi shimoli shabi daroztarin ba vuqu meoyand. Bayni tropikho mintaqai tropiki joy giriftaast, ki dar har mahalli on Oftob sole 2 marotiba ba qiyom meoyad.