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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 B1620−26: 2003 PSR B1620-26 b (planet) This planet is a circumbinary planet, which circles both stars in the PSR B1620-26 system [6] [7] First singular white dwarf with a transiting object WD 1145+017 ...
Pages in category "White dwarfs" The following 167 pages are in this category, out of 167 total. This list may not reflect recent changes. ...
White dwarf: HD 49798: 0.0023 0.023 0.25 1,600 km (990 mi) 2021 White dwarfs are stellar remnants produced when a star with around 8 solar masses or less sheds its outer layers into a planetary nebula. The leftover core becomes the white dwarf. It is thought that white dwarfs cool down over quadrillions of years to produce a black dwarf. [14]
WD 2317+1830 was first discovered in 2021 from Gaia and SDSS data as a candidate white dwarf. [9] A first spectral analysis was published in 2020, identifying it as a DZ white dwarf. [1] In 2021 observations with the Gran Telescopio Canarias were published. The white dwarf is massive and has a mass of 1.00 ± 0.02 M ☉.
About 6% of white dwarfs show infrared excess due to a disk around a white dwarf. [66] In the past only a relative small sample of white dwarf disks was known. [67] Due to advances in white dwarf detection (e.g. with Gaia or LAMOST) and improvement of WISE infrared catalogs with unWISE/CatWISE, the number has increased to hundreds of candidates.
This white dwarf started its life as a star about twice the sun's mass, living a lifespan of perhaps 1.2 billion years before entering its death throes. Many white dwarfs have a debris disk ...
Timeline of neutron stars, pulsars, supernovae, and white dwarfs. Note that this list is mainly about the development of knowledge, but also about some supernovae taking place. For a separate list of the latter, see the article List of supernovae. All dates refer to when the supernova was observed on Earth or would have been observed on Earth ...
'Snow White' sparks 'woke' backlash with Seven Dwarfs photos In July 2023, production photos leaked that appeared to show a diverse group of actors playing the reconceived Seven Dwarfs, drawing ...