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{{Short description|White dwarf in the constellation Pyxis}} '''Gliese 318''' is a [[white dwarf]] in the constellation [[Pyxis]]. Its [[spectral type]] is DA5.5 and ...

{{short description|Relation between density and radius for a white dwarf}} ...ef> in his study of the gravitational potential of completely degenerate [[white dwarf]] stars. The equation reads as<ref>{{cite book|last=Davis|first=Harol ...

...nd young stars in the [[solar neighborhood]], the local density of [[white dwarfs]] and their [[luminosity function]], and the local helium density, Schmidt ...

...e]] in the 1960s to study the spacetime outside [[neutron stars]], [[white dwarfs]] and [[supermassive stars]]. It can be shown that it is an approximation t ...

...r object of its kind. Its relative color components are unique among brown dwarfs observed to date. The best guess as to its origins are that it is a very ol ...ds]] [[Zooniverse]] project. He built his own online program to find brown dwarfs and found this source by accident, while looking at another source.<ref nam ...

Pycnonuclear reactions are observed in [[neutron star]]s or [[white dwarf]]s, with evidence present of them occurring in lab-generated [[deuter === Black dwarfs === ...

...projects as an independent scholar, including work with exoplanets, brown dwarfs, comets and Mars. He was a member of South Yorkshire's [[Mexborough and Swi === Finding brown dwarfs, white dwarfs === ...

...d less bright), called the [[main sequence]]. In the lower-left is where [[white dwarf]]s are found, and above the main sequence are the [[subgiant]]s, [[gi | caption1 = Hertzsprung-Russell diagram showing only [[white dwarfs]] with data from ESA's [[Gaia (spacecraft)|Gaia mission]] ...

...< ''M'' < 55''M''_⊙}} and does not apply to red giants or white dwarfs. As a star approaches the [[Eddington luminosity]] then {{math|1=''a'' = 1 ...date=2018|title=The Mass–Luminosity Relation for a Refined Set of Late-K/M Dwarfs|journal=Research Notes of the American Astronomical Society|volume=2a | pag ...

| caption = A white light [[light curve]] for RR Caeli, adapted from Maxted et al. (2007)<ref n | type = [[White dwarf]] + [[red dwarf]] ...

{{Short description|Pulsar–white dwarf binary system in Taurus constellation}} | image = [[File:Artist’s impression of the pulsar PSR J0348+0432 and its white dwarf companion.jpg|250px]] ...

| streak = grayish white === In stars and brown dwarfs === ...

...than a main sequence star. This was interpreted as the companion being a [[white dwarf]]. ...y faint for its mass; The latter paper ascribes this to it being a massive white dwarf or a close M-dwarf binary, but could not discriminate between the two ...

...a spectrum similar to early [[L dwarf|L-dwarfs]], but redder than field L-dwarfs.<ref name="Delorme2013"/> In 2020 Eriksson et al. discovered Hydrogen-alpha ...a [[circumstellar disk]].<ref name="Betti2022"/> Giant planets and [[brown dwarfs]] are thought to form via disk fragmentation in rare cases in the outer reg ...

...cebound/2017/0217/Hunt-for-Planet-9-how-you-can-help-NASA-search-for-brown-dwarfs-and-low-mass-stars|work=[[The Christian Science Monitor]]|date=17 February ...other objects of interest{{spaced ndash}}such as undiscovered nearby brown dwarfs{{spaced ndash}}would also be seen to move in the project's images. ...

...emainder, about 35% of the mass consists of stars that have evolved into [[white dwarf]]s or other [[stellar remnant]]s. The remainder of lost mass consists ...

.../sup> biomass, radiated energy about [[red giant]] stars and [[White dwarf|white]] and [[red dwarf]] stars could support a time-integrated ''BIOTA'' up to 1 ...| publisher = Touchstone Books, New York | year = 1999 }}</ref> and other white dwarf stars, can provide energy for life much longer, for trillions of eons ...

| ImageCaption = {{legend|yellow|Sulfur, S}}{{legend|white|Hydrogen, H}} ...<ref name="Lewis">{{cite journal|last=Lewis|first=Margaret|author2=John U. White |year=1939|title=The band spectrum of HS|journal=Physical Review|volume=55| ...

...n § 8. With regard to the colours of stars, the assumption that stars emit white light is his major mistake. Nowadays we know that colour mainly depends on ...components changes by at least 1%. According to Doppler this implies that white star light undergoes a perceptible colour change if the frequency shift is ...

...0Prime and DECam image of BD+60 1417 and the planet (red dot marked with a white arrow) ...orbit, it is likely to have formed similar to isolated [[Brown dwarf|brown dwarfs]]. It could also have formed in a closer orbit around the star via [[Nebula ...