Theta Ophiuchi

Alfirk (Beta Cephei)

by admin
2025-10-312025-11-01

Alfirk, Beta Cephei (β Cep), is a triple star system located approximately 690 light-years away in the northern constellation Cepheus. With an apparent magnitude of… Read More »Alfirk (Beta Cephei)

Hadar

by admin
2020-07-312025-07-24

Hadar, Beta Centauri (β Cen), is a triple star system located in the southern constellation Centaurus. With an apparent magnitude of 0.61, it is the… Read More »Hadar