This is a list of exceptional
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)   First found in a binary star system First double white dwarf system LDS 275 1944 L 462-56 system  First solitary white dwarf First white dwarf in a planetary system 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   First white dwarf with an orbiting planet As of 2013 , no planets have been found orbiting only a white dwarf  First white dwarf that is a pulsar AR Scorpii A 2016 The star is in a binary system with a red dwarf  Extremes [ edit ]
These are the white dwarfs which are currently known to fit these conditions
Title Star Date Data Comments Notes Refs Nearest Sirius B 1852 8.6 ly (2.6 pc) Sirius B is also the first white dwarf discovered.   Furthest SN UDS10Wil progenitor 2013 z=1.914 SN Wilson is a type-Ia supernova whose progenitor was a white dwarf    Farthest extant Oldest WD 0346+246 SDSS J110217.48+411315.4 2012 12 Gy (tied) Youngest SDSS J0003+0718 2011 ~13 My 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   Lowest surface temperature PSR J2222-0137 B 2014 3,000 K (2,700 C°, 4,892 F°)  Most luminous Least luminous PSR J2222-0137 B 2014 too dim to observe Brightest apparent Sirius B 1852 8.44 (V) Dimmest apparent PSR J2222-0137 B 2014 too dim to observe Most massive RE J0317-853 1998 1.35 M ☉ Least massive SDSS J091709.55+463821.8 2007 0.17 M ☉ Largest Z Andromedae 0.265 ±0.095 R ☉ Smallest RE J0317-853 2010 0.0035 ±0.000 575 R ☉ Nearest [ edit ]
Timeline of nearest white dwarf recordholders Star Date Distance Comments Notes Refs Sirius B 1852— 8.6 ly (2.6 pc) Sirius B is also the first white dwarf discovered   SDSS J1228+1240, A white dwarf with disk of debris.
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