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Ptolemy used a strategy of "figure reference" to identify stars according to their position within a familiar constellation or asterism (e.g., "in the right shoulder of The Hunter"). Muslim astronomers adopted some of these as proper names for stars, and added names from traditional Arabic star lore, which they recorded in various Zij treatises.
Additionally, astronomers have found 6 white dwarfs (stars that have exhausted all fusible hydrogen), 21 brown dwarfs, as well as 1 sub-brown dwarf, WISE 0855−0714 (possibly a rogue planet). The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth.
In 1985, the Arab Organization of Space Communications nominated Sultan bin Salman Al Saud.Originally a civilian pilot holding a commercial pilots licence, [9] Al Saud, a member of the House of Saud, was born in Riyadh, to King Salman of Saudi Arabia, and holds a bachelor's degree of Arts in Media from the University of Denver, Colorado.
A significant number of stars in the sky, such as Aldebaran, Altair and Deneb, and astronomical terms such as alidade, azimuth, and nadir, are still referred to by their Arabic names. A large corpus of literature from Islamic astronomy remains today, numbering approximately 10,000 manuscripts scattered throughout the world, many of which have ...
The 11 northern stars are those with a declination between 30° north and 90° north. They are listed in order of decreasing sidereal hour angle, or from the vernal equinox westward across the sky. Starting with Schedar in the constellation Cassiopeia, the list includes stars from the constellations Auriga, the Great and Little Bears, Draco ...
Widely recognised as being among the largest known stars, [28] radius decreased to ~500 R ☉ during the 2020 great dimming event. [74] R Horologii: 635 [75] L/T eff: A red giant star with one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye. Despite its large radius, it is less massive than the Sun.
Aldebaran (Arabic: الدَّبَران, lit. 'The Follower') is a star located in the zodiac constellation of Taurus. It has the Bayer designation α Tauri, which is Latinized to Alpha Tauri and abbreviated Alpha Tau or α Tau. Aldebaran varies in brightness from an apparent visual magnitude 0.75 down to 0.95, making it the brightest star in ...
Antares is the brightest star in the constellation of Scorpius. It has the Bayer designation α Scorpii, which is Latinised to Alpha Scorpii. Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ Scorpii near the center of the constellation. Distinctly reddish when viewed with the naked eye, Antares is a slow ...