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Alpha Cephei (α Cephei, abbreviated Alpha Cep, α Cep), officially named Alderamin / æ l ˈ d ɛr ə m ɪ n /, [10] [11] is a second magnitude star in the constellation of Cepheus near the northern pole. The star is relatively close to Earth at 49 light years (ly) and drifting closer with a heliocentric radial velocity of about −16 km/s.
Alderamin, also known as Alpha Cephei, is the brightest star in the constellation, with an apparent magnitude of 2.51. [5] Gamma Cephei, also known as Errai, is the second-brightest star in the constellation, with an apparent magnitude of 3.21. [6] It is a binary star, made up by an orange giant or subgiant [7] and a red dwarf. [8]
The discussion will occur at Wikipedia:Redirects for discussion/Log/2021 October 30#MU Cephei until a consensus is reached, and readers of this page are welcome to contribute to the discussion. ~~~~ User:1234qwer1234qwer4 ( talk ) 23:07, 30 October 2021 (UTC) [ reply ]
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TON 618 (abbreviation of Tonantzintla 618) is a hyperluminous, broad-absorption-line, radio-loud quasar, and Lyman-alpha blob [2] located near the border of the constellations Canes Venatici and Coma Berenices, with the projected comoving distance of approximately 18.2 billion light-years from Earth.
ξ Cephei (Latinised to Xi Cephei) is the system's Bayer designation.The designations of the three constituents as ξ Cephei A, B and C, and those of A's components - ξ Cephei Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).
AR Cephei (AR Cep) is a variable star in the constellation Cepheus. It is classified as a semiregular star, [ 1 ] [ 2 ] and has a maximum apparent magnitude of +7.32. A visual band light curve for AR Cephei, plotted from ASAS-SN data [ 3 ]
β Cephei (Latinised to Beta Cephei) is the system's Bayer designation.The designations of the two constituents as Beta Cephei A and B, and those of A's components - Beta Cephei Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).