Ntawm qhov nruab nrab tag nrho cov dab noj hnub tshwm sim nyob rau hauv ib qho chaw hauv ntiaj teb txog txhua 18 lub hlis. Qhov tseeb muaj ob hom duab ntxoov ntxoo: lub umbra yog ib feem ntawm tus duab ntxoov ntxoo uas txhua lub hnub ci thaiv tawm.
Yuav ua li cas eclipses tshwm sim?
Hnub ci dab noj hnub muaj ntau heev, kwv yees li 2 txog 4 ib xyoos, tab sis thaj chaw hauv av npog tag nrho tsuas yog li 50 mais dav. Hauv txhua qhov chaw hauv ntiaj teb, tag nrho cov dab noj hnub tshwm sim tsuas yog ib zaug ib puas xyoo los yog li ntawd, tab sis rau qhov chaw xaiv lawv tuaj yeem tshwm sim tsawg li ob peb xyoos sib nrug.
Puas hnub ci ntsa iab tshwm sim txhua 4 xyoos?
Tseem muaj nruab nrab ntawm ob thiab tsibhnub ci eclipses txhua xyoo, txhua qhov pom tsuas yog hauv thaj chaw txwv.
Muaj pes tsawg zaus tshwm sim hauv ib xyoos?
Txhua xyoo nruab nrab ntawm 2 thiab 5 hnub ci ntsa iab tshwm sim, txhua qhov pom tsuas yog hauv thaj chaw txwv. Yog li, feem ntau daim ntawv qhia hnub muaj 2 hnub solar eclipses. Cov hnub ci ntsa iab ntau tshaj plaws uas tuaj yeem tshwm sim hauv tib lub xyoo yog 5, tab sis qhov no tsis tshua muaj.
Kuv puas tuaj yeem pom hnub ci dab noj hnub xyoo 2021?
Sab laug: Lub voj voog ("ntiv nplhaib") hnub ci dab noj hnub ntawm Lub Rau Hli 10, 2021, yuav pom tau (huab cua tso cai) los ntawm thaj chaw thaj tsam ntawm Canada, Greenland, Siberia - thiab lub North Ncej. Sab nraum txoj kev ntawm annularity, cov cheeb tsam qhia yuav muaj ib nrab hnub ci dab noj hnub.
