Kaus Australis
Stars

Star Facts: Kaus Australis

June 6, 2017 Peter Christoforou 0

Epsilon Sagittarii, also known as Kaus Australis, has an apparent visual magnitude of +1.85, making it the most luminous star in the southern sky constellation of Sagittarius. Along with the stars Gamma Sagittarii, Delta Sagittarii, […]

Zubeneschamali
Stars

Star Facts: Zubeneschamali

June 1, 2017 Peter Christoforou 0

Despite its “beta” designation, Beta Librae is the brightest star in the constellation Libra, with an apparent magnitude of +2.6. However, the debate about its true brightness dates back to antiquity; Eratosthenes (276-194 BC) was […]

Pollux and Castor
Stars

Star Facts: Castor

May 19, 2017 Peter Christoforou 0

Castor (Alpha Geminorum) is the “other” star that marks out the “heads” of the Heavenly Twins in the constellation Gemini, the other being Pollux (Beta Geminorum). Even though Castor is the least luminous of the […]

Acrux
Stars

Star Facts: Acrux

May 2, 2017 Peter Christoforou 0

Acrux (Alpha Crucis) is the brightest star in the constellation Crux, the 13th most luminous star in the entire night sky, and also the southernmost of all first magnitude stars. However, Acrux is actually a […]

Beta Crucis
Stars

Star Facts: Mimosa

May 1, 2017 Peter Christoforou 0

Mimosa (Beta Crucis) is the second most luminous star in the Southern Cross asterism that defines the constellation Crux, and the 20th most luminous star in the entire night sky. It is also a spectroscopic […]

Fomalhaut
Stars

Star Facts: Fomalhaut

April 29, 2017 Peter Christoforou 0

Fomalhaut (Alpha Piscis Austrini) is the most luminous star in the constellation Piscis Austrinus (Southern Fish), and the 18th brightest in the entire night sky. Like the star Vega, Fomalhaut emits an excess of infrared […]

Deneb Star
Stars

Star Facts: Deneb

April 28, 2017 Peter Christoforou 0

Deneb (Alpha Cygni) is the most luminous star in the constellation Cygnus, and with an apparent magnitude of +1.25, it is the 19th most luminous star in the entire night sky. The star forms one […]

Hadar
Stars

Star Facts: Hadar

April 27, 2017 Peter Christoforou 0

Hadar (Beta Centauri) is a triple star system whose combined visual magnitude of +0.61 makes it the second-most luminous star in constellation of Centaurus, and the 11th most luminous stars in the entire sky. It […]

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