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White dwarfs
White dwarfs are the hot, extremely dense cores of stars left behind after stars like our Sun exhaust their fuel. Imagine compressing the mass of the entire Sun into the volume of our Earth; the result would be an object so dense that a teaspoon of its material would weigh tons. In our solar system, the Sun will one day shed its outer layers and become a white dwarf, a planet-sized glowing remnant slowly cooling in the void. These bodies represent the final evolutionary stage of most stars and show us the future fate of our own planetary system.
- Percentage of White dwarfs within 98.5 light years: 4.93 % (469 from 9522 stars)
- Average mass of White dwarfs: 20-140% solar mass
- Average radius of White dwarfs: 0.7-1.5% solar radius
- Average temperature of White dwarfs: 5000-150000 K
White dwarfs
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Nearest White dwarfs
| Star name | Mass | Distance | ||
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Sirius B | DA1.9 | 1 M☉ | 8.6 ly |
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Procyon B | DQZ D | 0.6 M☉ | 11.5 ly |
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Van Maanens star Van Maanen 2, Gliese 35, GJ 35, vMa2, G 001-027, GCTP 160.00, HIP 3829, LFT 76, LHS 7, LTT 10292, WD 0046+051, Wolf 28 |
DZ7.5 | 0.68 M☉ | 14.1 ly |
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Gliese 440 LP 145-141, HIC 57367, HIP 57367, BPM 7108, Ci 20 658, EGGR 82, L 145-141, LAWD 37, LHS 43, LPM 396, LTT 4364, NLTT 28447, PLX 2716, PM 11429-6434, WD 1142-645, TYC 8981-4417-1, GSC 08981-04418, 2MASS J11454297-6450297 |
DQ6 | 0.56 M☉ | 15.1 ly |
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40 Eridani B BD-07° 781, G 160-060, HD 26976, LHS 24, LTT 1908, SAO 131065, omi02 Eri B |
DA4 | 0.57 M☉ | 16.3 ly |
White dwarfs
Latest news from White dwarfs
Evaporating planet explains gaseous disk formation around white dwarf WD J0914+1914
9. 8. 2026
Stars | Exoplanets | White dwarfThe white dwarf WD J0914+1914 is surrounded by a ring of gas containing hydrogen, oxygen, and sulfur. This material originates from a nearby Neptune-like or super-puff planet—a planet with a very low density—that is losing its atmosphere due to intense radiation from the star. The escaping gas forms a disk around the star, which is then slowly pulled onto the white dwarf's surface, creating the unique light signals observed by instruments.
Advanced simulations were used to model the atmos...
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1. 8. 2026Stars | Exoplanets | TESS | Red dwarfs | Planet formation | White dwarfThe giant planet TOI-5628Ab orbits a Red dwarf star every 4.34 days. Observations reveal that Red dwarfs with close-in giant planets are 6 times more likely to have a distant stellar companion, suggesting these neighbors influence planetary migration....
5. 7. 2026Stars | Exoplanets | Planetary atmospheres | White dwarfThe atmosphere of planet WD 1856 b, orbiting a white dwarf star, contains hydrocarbons and aerosols. Data from the James Webb Space Telescope reveal the planet is significantly warmer than expected, pointing to a past reheating event during its orbital migration....
8. 3. 2026Stars | White dwarfs | Giant Star
RS Ophiuchi’s 2021 nova eruption was tracked in near-infrared light, revealing million-degree coronal gas and possible changes in the red giant star’s type after the event....
1. 3. 2026White dwarfs | StarMira B is likely an extremely low-mass white dwarf, accreting material via Wind Roche Lobe Overflow. Photometric data reveal short-term variability and support a mass of just 0.24 solar masses. #Astrophysics #WhiteDwarfs...
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