Sirius (/ˈsɪriəs/) is the brightest star (in fact, a star system) in the Earth's night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name "Sirius" is derived from the Ancient Greek Σείριος (Seirios), meaning "glowing" or "scorcher". The system has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is actually a binary star system, consisting of a white main-sequence star of spectral type A1V, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.2 and 31.5 AU.
Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (8.6 ly), as determined by the Hipparcos astrometry satellite, the Sirius system is one of Earth's near neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years. After that time its distance will begin to increase and it will become fainter, but it will continue to be the brightest star in the Earth's sky for the next 210,000 years.
Sirius B is the twelfth full-length musical album by symphonic metal band Therion. The album title refers to the star Sirius B. It was released simultaneously with Lemuria. Cover artwork was made by Thomas Ewerhard.
In an interview with Global Domination, Johnsson noted that the album title is a reference to the twin star to the ordinary Sirius A. The star "was firstly discovered by western society in quite modern times, while an African tribe called the Dogons (living in Mali) had knowledge about it since ancient times and claim to have been visited by “people” (entities) from that stellar system."
The album makes references to ancient culture and mythology:
Sirius B is part of the Sirius binary star system.
Sirius B may also refer to:
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