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A less common observable evidence is infrared excess due to a flat and optically thick debris disk, which is found in around 1%–4% of white dwarfs. [155] The first white dwarf with infrared excess was discovered by Zuckerman and Becklin in 1987 in the near-infrared around Giclas 29-38 [160] and later confirmed as a debris disk. [161]
First discovered Sirius B: 1852 Sirius system Sirius B is also the nearest white dwarf (as of 2005) [2] [3] First found in a binary star system First double white dwarf system LDS 275: 1944 L 462-56 system [4] First solitary white dwarf Van Maanen 2: 1917 Van Maanen's star is also the nearest solitary white dwarf [5] First white dwarf with a planet
WD 1145+017 (also known as EPIC 201563164 [5]) is a white dwarf approximately 476 light-years (146 parsecs) from Earth in the constellation of Virgo. It is the first white dwarf to be observed with a transiting minor planet orbiting it.
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.
An exoplanet orbits PSR B1620-26 and its white dwarf companion (see below) in a circumbinary orbit. HD 49798: 1,600 White dwarf: One of the smallest white dwarf stars known. [14] ZTF J1901+1458: 1,809 Currently the most massive white dwarf known. [15] Janus: 3,400 A white dwarf with a side of hydrogen and another side of helium. [16] Wolf 1130 ...
First planet discovered in a circumbinary orbit PSR B1620-26 b: PSR B1620-26: 1993 Orbits a pulsar and a white dwarf. Discovery confirmed in 2003. First planet discovered in globular cluster PSR B1620-26 b: PSR B1620-26: 1993 Located in Messier 4. First planet discovered in a multiple main-sequence star system 55 Cancri b: 55 Cancri: 1996
The “dwarf”-like animal was discovered on a cashew farm, researchers said. ... The male gecko has an orange-yellow body and striped black and white tail. A line of white blotches runs down its ...
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 ...