Colloquially hu ua Demon Star, lub hnub qub Algol tau txuas nrog lub qhov muag ntawm Medusa los ntawm cov kws tshawb fawb thaum ntxov. Algol yog qhov tseeb 3-hauv-1 ntau lub hnub qub. Lub stellar system los yog hnub qub system yog ib tug me me ntawm cov hnub qub uas orbit ib leeg, khi los ntawm gravitational attraction.
Tshawb nrhiav pom hauv xyoo 1669, peb lub hnub ntawm Algol txav ib ncig, ua rau “lub hnub qub” kom dim thiab ci ntsa iab. Ib daim ntawv 3,200-xyoo-laus papyrus tau kawm hauv 2015 qhia tias cov neeg Iyiv thaum ub tau tshawb pom thawj zaug.
Hu ua Cairo Calendar, cov ntaub ntawv qhia txhua hnub ntawm lub xyoo, muab hnub zoo rau kev ua koob tsheej, kev kwv yees, ceeb toom, thiab txawm tias cov dej num ntawm vajtswv. Yav dhau los, cov kws tshawb fawb xav tias daim ntawv qhia hnub qub muaj qhov txuas mus rau saum ntuj ceeb tsheej, tab sis lawv yeej tsis muaj pov thawj.
Txoj kev tshawb nrhiav pom tias daim ntawv qhia hnub zoo sib xws Algol lub hnub ci tshaj plaws nrog rau lub hli. Nws zoo nkaus li tias tsis yog cov neeg Iyiv tuaj yeem pom lub hnub qub yam tsis muaj kev pab ntawm lub tsom iav, nws lub voj voog tau cuam tshuam rau lawv daim ntawv teev kev ntseeg.
Los ntawm kev siv cov ntaub ntawv txheeb xyuas rau Daim Ntawv Qhia Hnub Muaj hmoo thiab Hnub Tsis Muaj hmoo tau sau tseg rau ntawm papyrus, cov kws tshawb fawb los ntawm University of Helsinki hauv Finland muaj peev xwm ua tau raws li cov dej num ntawm Egyptian vajtswv poj niam Horus rau 2.867-hnub voj voog ntawm Algol. Qhov kev tshawb pom no qhia tau hais tias cov neeg Iyiv tau paub zoo txog Algol thiab hloov kho lawv daim ntawv qhia hnub kom phim lub hnub qub sib txawv nyob ib puag ncig 3,200 xyoo dhau los.
Yog li cov lus nug uas tseem tsis tau teb yog: Yuav ua li cas cov neeg Iyiv thaum ub tau txais qhov kev paub tob tob txog lub hnub qub Algol? Vim li cas lawv thiaj hais txog lub hnub qub no rau ib qho ntawm lawv qhov tseem ceeb tshaj plaws deities, Horus? Qhov zoo tshaj plaws, lawv tau ua li cas thiaj li saib lub hnub qub uas tsis muaj lub koob yees duab txawm tias nws yuav luag 92.25 xyoo teeb ntawm lub ntiaj teb?