Double/Multiple Stars – Page 23 – The Garden Astronomer

31 Cygni: A Trio of Orange, Blue, and White Stars

31 Cygni (Omicron Cygni) is a triple star system in Cygnus with large orange giants and blue companions, ideal for telescope observers in fall.

Alfirk (Beta Cephei): Cepheus’ Multiple Cool Giant Blue

Beta Cephei, known by its traditional name of Alfirk, makes its home in the fall constellation of Cepheus and is a multiple star system.

Regulus: Bright and Blue Heart of the Lion

Regulus, a bright blue and hot star of the spring and summer sky, makes its home in the constellation Leo.

Al Kurhah: An Attractive Multiple Star Belonging to a King

An illustration of the double star system.

The star Xi Cephei, known by the name Kurhah or Al Kurhah, is a multiple star system in the constellation Cepheus. My observation shows a beautiful orange bright star with a pale white smaller star nearby. It’s best viewed in autumn in the northern hemisphere and is a great target for backyard astronomers.