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  2. BPM 37093 - Wikipedia

    en.wikipedia.org/wiki/BPM_37093

    BPM 37093 (V886 Centauri) is a variable white dwarf star of the DAV, or ZZ Ceti, type, with a hydrogen atmosphere and an unusually high mass of approximately 1.1 times the Sun's. It is 48 light-years (15 parsecs ) from Earth in the constellation Centaurus and vibrates; these pulsations cause its luminosity to vary .

  3. WD 0806−661 B - Wikipedia

    en.wikipedia.org/wiki/WD_0806%E2%88%92661_B

    WD 0806−661, or Maru, is a white dwarf star of the spectral type DQ. The metal-poor composition of its planetary-mass companion could explain its spectral type, as it is theorized that hydrogen-deficient stars of the asymptotic giant branch could evolve into white dwarfs of spectral type DB and then DQ as they cool down. [5]

  4. List of white dwarfs - Wikipedia

    en.wikipedia.org/wiki/List_of_white_dwarfs

    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 ...

  5. G 240-72 - Wikipedia

    en.wikipedia.org/wiki/G_240-72

    G 240-72 is the seventh closest white dwarf (after Sirius B, Procyon B, van Maanen's star, Gliese 440, 40 Eridani B and Stein 2051 B). Its trigonometric parallax is 0.1647 ± 0.0024 arcsec , [ 5 ] corresponding to a distance 6.07 ± 0.09 pc , or 19.80 +0.29

  6. White dwarf - Wikipedia

    en.wikipedia.org/wiki/White_dwarf

    A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: its mass is comparable to the Sun's and its volume Earth's. No nuclear fusion takes place in a white dwarf; what light it radiates is from its residual heat. [1]

  7. Astronomers observe scar on white dwarf 'cannibal' star - AOL

    www.aol.com/news/astronomers-observe-scar-white...

    A light year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km). ... Vesta is a rocky object in our solar system's main asteroid belt with a diameter of about 330 miles ...

  8. List of nearest stars - Wikipedia

    en.wikipedia.org/wiki/List_of_nearest_stars

    The position marks are entered inward from the distance marks according to their declinations, connected by lines (doted when positive) representing the arcs of the declinations viewed edge-on. This list covers all known stars, white dwarfs, brown dwarfs, and sub-brown dwarfs within 20 light-years (6.13 parsecs) of the Sun. So far, 131 such ...

  9. van Maanen 2 - Wikipedia

    en.wikipedia.org/wiki/Van_Maanen_2

    Like other white dwarfs, it is a very dense star: its mass has been estimated to be about 67% of the Sun's, [28] yet it has only 1% of the Sun's radius (1.23 times the Earth's radius) [8] [a] The outer atmosphere has a temperature of approximately 6,110 K, [28] which is relatively cool for a white dwarf. As all white dwarfs steadily radiate ...