Multiple star systems

Rigel is a blue supergiant star in the equatorial constellation of Orion. It has the Bayer designation β Orionis, which is Latinized to Beta Orionis and abbreviated Beta Ori or β Ori. Rigel is the brightest and most massive componentand the eponymof a star system of at least four stars that appear as a single blue-white point of light to the naked eye. This system is located at a distance of approximately .

Capella is the brightest star in the northern constellation of Auriga. It has the Bayer designation α Aurigae, which is Latinised to Alpha Aurigae and abbreviated Alpha Aur or α Aur. Capella is the sixth-brightest star in the night sky, and the third-brightest in the northern celestial hemisphere after Arcturus and Vega. A prominent object in the northern sky, it is circumpolar to observers north of 44°N. Its name meaning "little goat" in Latin, Capella depicted the goat Amalthea that suckled Zeus in classical mythology. Capella is relatively close, at . It is one of the brightest X-ray source

Regulus is the brightest object in the constellation Leo and one of the brightest stars in the night sky. It has the Bayer designation designated α Leonis, which is Latinized to Alpha Leonis, and abbreviated Alpha Leo or α Leo. Regulus appears single, but is actually a quadruple star system composed of four stars that are organized into two pairs. The system lies approximately 79 light years from the Solar System.

star in the constellation Gemini

Mizar is a second-magnitude star in the handle of the Big Dipper asterism in the constellation of Ursa Major. It has the Bayer designation ζ Ursae Majoris (Latinised as Zeta Ursae Majoris). It forms a well-known naked eye double star with the fainter star Alcor (a binary system consisting of Alcor A and Alcor B), and is itself a quadruple star system. The Mizar and Alcor system lies about 83 light-years away from the Sun, as measured by the Hipparcos astrometry satellite, and is part of the Ursa Major Moving Group.

Dubhe is a multiple star system in the northern constellation of Ursa Major. It is formally designated Alpha Ursae Majoris, Latinised from α Ursae Majoris, Despite being designated "α" (alpha), it is the second-brightest object in the constellation. Alpha Ursae Majoris is the northern of the 'pointers' (or 'guards'), the second being Beta Ursae Majoris, or 'Merak' – this pair of stars point towards Polaris, the North Star. α Ursae Majoris is located at a distance of approximately 123 light years from the Sun, based on parallax measurements.

binary star system

star system in the constellation Taurus

multiple star system in the constellation Andromeda

star in the constellation Orion

Acrux is a multiple star system the brightest star in the southern constellation of Crux. It has the Bayer designation α Crucis, which is Latinised to Alpha Crucis and abbreviated Alpha Cru or α Cru. With a combined visual magnitude of +0.76, it is the 13th-brightest star in the night sky. It is the most southerly star of the asterism known as the Southern Cross and is the southernmost first-magnitude star, 2.3 degrees more southerly than Alpha Centauri. This system is located at a distance of from the Sun.

star system in the constellation Vela

star in the constellation Taurus

star in the constellation Libra

star system in the constellation Capricornus

multiple star system in the constellation of Lyra

five-star system in the constellation Orion

star system in the constellation Dorada

star in the constellation Ursa Major

star in the constellation Hercules

variable star in the constellation Scorpius

star in the constellation Andromeda

star system in the constellation Ursa Major

star system in the constellation Cancer

star in the constellation Crater

star

multiple star system in the constellation Ophiuchus

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multiple star system in the constellation Cassiopeia

quadruple star system in the constellation Orion

variable star in the constellation Hydra

multiple star system in the constellation of Lyra

star in the constellation Serpens

variable star

multiple star

multiple star

star system in the constellation Auriga

variable star in the constellation Sagittarius

star in the constellation Aries

star system

star in the constellation Aries

double star in the constellation Taurus

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variable star in the constellation Monoceros

quadruple star system in the constellation of Aquila

triple star system in the constellation Tucana

multiple star system in the constellation Camelopardalis

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star system in the constellation Aries

star system in the constellation Auriga

multiple star system in the constellation Taurus

double star in the constellation Taurus

star system in the constellation Centaurus

quadruple star system in the constellation Tucana

star system in the constellation Taurus

star in the constellation Corona Borealis

Star system in the constellation Vela

star in the constellation Gemini

multiple star system in the constellation Volans

star in the constellation Pyxis