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Barnard's Star is a small red dwarf star in the constellation of Ophiuchus.At a distance of 5.96 light-years (1.83 pc) from Earth, it is the fourth-nearest-known individual star to the Sun after the three components of the Alpha Centauri system, and is the closest star in the northern celestial hemisphere. [15]
Thuban (/ ˈ θj uː b æ n /), [6] with Bayer designation Alpha Draconis or α Draconis, is a binary star system in the northern constellation of Draco.A relatively inconspicuous star in the night sky of the Northern Hemisphere, it is historically significant as having been the north pole star from the 4th to 2nd millennium BC.
Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a triple star system in the southern constellation of Centaurus.It consists of three stars: Rigil Kentaurus (α Centauri A), Toliman (α Centauri B), and Proxima Centauri (α Centauri C). [14]
A multiple star system consists of two or more stars that appear from Earth to be close to one another in the sky. [dubious – discuss] This may result from the stars actually being physically close and gravitationally bound to each other, in which case it is a physical multiple star, or this closeness may be merely apparent, in which case it is an optical multiple star [a] Physical multiple ...
Bintang di Surga is a re-recorded album by the Indonesian rok music group Noah from Peterpan album which was released with the same name in 2004. This album is the third re-recorded album by Noah and was released on January 12, 2022, through Musica Studio's .
Gamma Centauri, Latinized from γ Centauri, is a binary star system in the southern constellation of Centaurus.It has the proper name Muhlifain, [10] not to be confused with Muliphein, which is γ Canis Majoris; both names derive from the same Arabic root.
Castor is the second-brightest object in the zodiac constellation of Gemini.It has the Bayer designation α Geminorum, which is Latinised to Alpha Geminorum and abbreviated Alpha Gem or α Gem.
A scanning electron microscope image of a single neutrophil (yellow/right), engulfing anthrax bacteria (orange/left) – scale bar is 5 μm (false color). The immune system is a network of biological systems that protects an organism from diseases.