Njengoba yaziwa ngokuthi i-Demon Star, inkanyezi i-Algol yaxhunyaniswa neso elicwayizayo le-Medusa izazi zezinkanyezi zakuqala. I-Algol empeleni iyisistimu yezinkanyezi ezi-3-in-1. Isistimu yezinkanyezi noma uhlelo lwenkanyezi inombolo encane yezinkanyezi ezizungezana, eziboshwe ukukhangwa kwamandla adonsela phansi.
Kutholwe ngokusemthethweni ngo-1669, amalanga amathathu e-Algol azungezana, okubangela "inkanyezi" ukufiphaza nokukhanya. Umbhalo we-papyrus oneminyaka engu-3,200 ubudala owacwaningwa ngo-2015 wasikisela ukuthi abaseGibhithe lasendulo bawuthola kuqala.
Lo mbhalo owawubizwa ngokuthi IKhalenda LaseCairo, wawuqondisa usuku ngalunye lonyaka, unikeza izinsuku ezinhle zemikhosi, izibikezelo, izixwayiso, ngisho nemisebenzi yonkulunkulu. Ngaphambili, abacwaningi babenomuzwa wokuthi ikhalenda lasendulo linesixhumanisi nesibhakabhaka, kodwa abazange babe nabuphi ubufakazi.
Ucwaningo luthole ukuthi izinsuku ezinhle zekhalenda zifana nezinsuku ezikhanya kakhulu ze-Algol kanye nalezo zeNyanga. Kubonakala sengathi abantu baseGibhithe babengakwazi nje ukubona inkanyezi ngaphandle kosizo lwesibonakude, umjikelezo wayo waba nethonya elijulile ekhalendeni labo lenkolo.
Ngokusebenzisa ukuhlaziya kwezibalo KumaKhalenda Ezinsuku Zenhlanhla Nezingenanhlanhla aqoshwe kuyi-papyrus, abacwaningi baseNyuvesi yase-Helsinki e-Finland bakwazi ukufanisa imisebenzi kankulunkulu waseGibhithe lasendulo uHorus nomjikelezo wezinsuku ezingu-2.867 we-Algol. Lokhu kutholwa kuphakamisa ngokuqinile ukuthi abaseGibhithe babeyazi kahle i-Algol futhi bashintsha amakhalenda abo ukuze afane nenkanyezi eguquguqukayo eminyakeni eyi-3,200 edlule.
Ngakho imibuzo esalokhu ingaphenduleki yilena: Abantu baseGibhithe lasendulo baluthola kanjani ulwazi olujulile ngale ndlela yezinkanyezi ze-Algol? Kungani bahlobanisa lesi simiso sezinkanyezi nomunye wonkulunkulu babo abaphawulekayo, uHorus? Okuphawuleka nakakhulu ukuthi, balubona kanjani uhlelo lwezinkanyezi ngaphandle kwesibonakude nakuba sasiqhele ngama-light-year cishe angu-92.25 ukusuka eMhlabeni?
