Loading AI tools
From Wikipedia, the free encyclopedia
This is a list of exceptional white dwarf stars.
These were the first white dwarfs discovered fitting these conditions
Title | Star | Date | Data | Comments | Notes | Refs |
---|---|---|---|---|---|---|
First discovered | 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 B1620−26 | 2003 | PSR B1620-26 b (planet) | This planet is a circumbinary planet, which circles both stars in the PSR B1620-26 system | [5][6] | |
First singular white dwarf with a planet | WD 1145+017 | 2015 | WD 1145+017 b | Planet is extremely small and is disintegrating. | ||
First white dwarf that is a pulsar | AR Scorpii A | 2016 | The star is in a binary system with a red dwarf | [7] | ||
These are the white dwarfs which are currently known to fit these conditions
Title | Star | Date | Data | Comments | Notes | Refs |
---|---|---|---|---|---|---|
Nearest | Sirius | 1852 | 8.6 ly (2.6 pc) | Sirius B is also the second white dwarf discovered. | [1][2] | |
Farthest | SN UDS10Wil progenitor | 2013 | 10,000,000,000 ly z=1.914 | SN Wilson is a type-Ia supernova whose progenitor was a white dwarf | [8][9][10] | |
Oldest | WD 0346+246 | 2021 | 11.5 billion years | [11] | ||
Youngest | provisional estimate | |||||
Highest surface temperature | RX J0439.8−6809 | 2015 | 250,000 K (250,000 °C; 450,000 °F) | This star is located in the Milky Way's galactic halo, in the field of the Large Magellanic Cloud | [12][13][11] | |
Lowest surface temperature | PSR J2222–0137 B WD J2147–4035 |
2021 2022 |
3000K 3050 K |
in binary single |
[11][14] | |
Most luminous | Z Andromedae B | 1,500 - 9,800 L☉ | [15] | |||
Least luminous | ESO 439-26 | 1.15×10−5 L☉ | likely based on too high of a parallax | |||
Brightest apparent | Sirius B | 1852 | 8.44 (V) | |||
Dimmest apparent | ||||||
Most massive | ZTF J1901+1458[16] | 2020 | 1.35 M☉ | [16] | ||
Least massive | NLTT 11748 | 2007 | 0.13–0.16 M☉ | [11] | ||
Largest | Z Andromedae B | 0.17—0.16 R☉ | [17] | |||
Smallest | HD 49798 | 2021 | 0.0023 R☉ | [18] |
Star | Distance | Comments | Notes | Refs | |
---|---|---|---|---|---|
Sirius B | 8.58 ly (2.63 pc) | Sirius B is also the second white dwarf discovered. It is part of the Sirius system. | [1][2][19][20] | ||
Procyon B | 11.43 ly (3.50 pc) | Part of Procyon system | [19][20] | ||
van Maanen's Star | 14.04 ly (4.30 pc) | [19][20] | |||
GJ 440 | 15.09 ly (4.63 pc) | [19] | |||
40 Eridani B | 16.25 ly (4.98 pc) | Part of 40 Eridani system | [19][20] | ||
Stein 2051 B | 18.06 ly (5.54 pc) | Part of Stein 2051 system | [19][20] | ||
LP 44-113 | 20.0 ly (6.1 pc) | [20] | |||
G 99-44 | 20.9 ly (6.4 pc) | [20] | |||
L 97-12 | 25.8 ly (7.9 pc) | [20] | |||
Wolf 489 | 26.7 ly (8.2 pc) | [20] | |||
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.