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A white dwarf is very dense: its mass is comparable to the Sun's and its volume Earth's. No nuclear fusion takes place in a white dwarf; what light it radiates is from its residual heat. [1] The nearest known white dwarf is Sirius B, at 8.6 light years, the smaller component of the Sirius binary star. There are currently thought to be eight ...
Sirius B: 1852 Sirius system Sirius B is also the nearest white dwarf (as of 2005) [1] [2] First found in a binary star system First double white dwarf system LDS 275: 1944 L 462-56 system [3] First solitary white dwarf Van Maanen 2: 1917 Van Maanen's star is also the nearest solitary white dwarf [4] First white dwarf with a planet WD B1620− ...
Brightest red dwarf in the sky. List of nearest K-type stars. Alpha Centauri B is the closest K-type star to the Earth. ... Sirius A 8.6 ± 0.04: A0mA1Va [107] 1. ...
Nearest white dwarf: Sirius B: 1852 8.6 light-years (2.6 pc) Sirius B is also the second white dwarf discovered, after 40 Eridani B. [9] [25] [26] Nearest brown dwarf: Luhman 16: 2013 6.5 light-years (2.0 pc) This is a pair of brown dwarfs in a binary system, with no other stars. [27] Nearest Luminous Blue Variable: P Cygni: 5,251 light-years ...
1910 – the spectrum of 40 Eridani B is observed, making it the first confirmed white dwarf. 1914 – Walter Sydney Adams determines an incredibly high density for Sirius B. 1926 – Ralph Fowler uses Fermi–Dirac statistics to explain white dwarf stars. 1930 – Subrahmanyan Chandrasekhar discovers the white dwarf maximum mass limit.
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Currently the most massive white dwarf known. [16] Janus: 3,400 A white dwarf with a side of hydrogen and another side of helium. [17] Wolf 1130 B 3,480 [18] IK Pegasi B 4,174 The nearest supernova candidate. [19] Sirius B: 5,466 Historically first detected white dwarf star [20] LB 1497: 5,494.5 [21] 40 Eridani B 5,547.5 U Geminorum white dwarf ...
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