Thuban (/ˈθjuːbæn/),[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.
Johann Bayer gave Thuban the designation Alpha and placed it as the only member of his secundae magnitude class in Draco, although its current apparent magnitude of 3.65 means it is 3.7 times fainter than the brightest star in the constellation, Gamma Draconis (Eltanin), which Bayer placed in his tertiae magnitude class although its current apparent magnitude is 2.24.[7]
^ abcdeVan Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
^ abcPavlovski, K.; Hummel, C. A.; Tkachenko, A.; Dervişoğlu, A.; Kayhan, C.; Zavala, R. T.; Hutter, D. J.; Tycner, C.; Şahin, T.; Audenaert, J.; Baeyens, R.; Bodensteiner, J.; Bowman, D. M.; Gebruers, S.; Jannsen, N. E.; Mombarg, J. S. G. (2022). "Dynamical parallax, physical parameters, and evolutionary status of the components of the bright eclipsing binary α Draconis". Astronomy & Astrophysics. 658: A92. arXiv:2111.03887. Bibcode:2022A&A...658A..92P. doi:10.1051/0004-6361/202142292. S2CID 243847585.
^Kallinger, T.; Iliev, I.; Lehmann, H.; Weiss, W. W. (2005). "The puzzling Maia candidate star α Draconis". Proceedings of the International Astronomical Union. 2004: 848–852. Bibcode:2004IAUS..224..848K. doi:10.1017/S1743921305009865.
^Murphy, Simon J.; Paunzen, Ernst (2017). "Gaia's view of the λ Boo star puzzle". Monthly Notices of the Royal Astronomical Society. 466 (1): 546. arXiv:1612.01528. Bibcode:2017MNRAS.466..546M. doi:10.1093/mnras/stw3141. S2CID 119328659.
^Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
Thuban (/ˈθjuːbæn/), with Bayer designation Alpha Draconis or α Draconis, is a binary star system in the northern constellation of Draco. A relatively...
USS Thuban (AKA-19/LKA-19) was an Andromeda-class attack cargo ship in service with the United States Navy from 1943 to 1967. The ship was scrapped in...
includes the 790 series chipset and Radeon HD 4800 series graphics. The Thuban Phenom II X6 is the CPU in the Leo Platform which also includes the AMD...
accompanied by a dragon called Thuban, who would assist Drew throughout the game. Drew and Thuban are bonded together, and Thuban's death would cause Drew to...
PC2-8500, DDR3 SDRAM up to PC3-10600 (Socket AM3 only) Chip harvests from Thuban with two cores disabled All models support: MMX, SSE, SSE2, SSE3, SSE4a...
The visible star nearest the north celestial pole 5,000 years ago was Thuban. On maps published by the United States Geological Survey (USGS) and the...
towards Deneb by about the 91st century. The celestial pole was close to Thuban around 2750 BC, and during classical antiquity it was slightly closer to...
the remote past (and in the remote future). In 3000 BC, the faint star Thuban in the constellation Draco was the North Star, aligning within 0.1° distance...
2010, AMD released a new Phenom II Hexa-core (6-core) processor codenamed "Thuban". This was a totally new die based on the hexa-core "Istanbul" Opteron processor...
Halfway between the maximum eastern and western elongations is true north. Thuban, the polar star during the Old Kingdom, was about two degrees removed from...
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completion of his training, he served 18 months on the attack cargo ship USS Thuban, and then moved to the Pentagon where he served in the audio/visual office...
1055T, 1065T, 1075T, 1090T and 1100T Four AMD K10 cores harvested from Thuban with two cores disabled ISA extensions: MMX, Enhanced 3DNow!, SSE, SSE2...
(LKA). Arcturus class USS Libra (LKA-12) Andromeda class: MC type C2 USS Thuban (LKA-19) USS Algol (LKA-54) USS Arneb (LKA-56) USS Capricornus (LKA-57)...
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Retrieved 3 March 2016. "List of Unlockable AMD CPUs". "AMD Phenom II X6: Thuban the Dragon". Archived from the original on 2014-02-28. Retrieved 2011-02-07...
constellations of Ursa Major and Ursa Minor respectively, when the star Thuban was the Pole Star (4th to 2nd millennium BCE). Matsya is invoked as a form...
to as the "Guardians of the Pole" (meaning Polaris). On the other hand, Thuban in the constellation Draco, which was the pole star in 3000 BC, is much...
star, which, because of the precession of the equinoxes, was at that time Thuban, a faint star in the constellation of Draco. Evaluation of the site of the...
was the Earth's rotation axis 5000 years ago when it pointed to the star Thuban. The yellow axis, pointing to Polaris is the situation now. Note that when...
lower mass estimate of 1.3 ± 0.3 M☉ is reached. From around 2500 BCE, as Thuban became less and less aligned with the north celestial pole, Kochab became...
but it will only be within 10° of the south celestial pole. 20,346 AD Thuban becomes the North Star. 27,800 AD Polaris again is the North Star. 27,000...
will leak on Leo." Extending a line from Phecda (γ) to Megrez (δ) leads to Thuban (α Draconis), which was the pole star 4,000 years ago. Crossing the top...
USS Centaurus (AK-66), later AKA-17 USS Cepheus (AK-67), later AKA-18 USS Thuban (AK-68), later AKA-19 USS Virgo (AK-69), later AKA-20, AE-30 USS Crater...
literary magazine published between 1942 and 1983 SS Adib, coastal tanker Thuban, star in the constellation Draco sometimes known as Adib This page or section...
are Intel cores with Hyper-Threading sold under the Intel Atom brand. AMD Thuban (Phenom II), Callisto, Heka, Propus, Deneb, Zosma (Phenom II) and Shanghai...
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