the range of masses for white dwarf stars
White dwarf Although white dwarfs are known with estimated masses as low as 0.17 M☉[27] and as high as 1.33 M☉,[28] the mass distribution is strongly peaked at 0.6 M☉, and the majority lie between 0.5 and 0.7 M☉.[28] The estimated radii of observed white dwarfs are typically 0.8–2 % the radius of the Sun;[29] this is comparable to the Earth's radius of approximately 0.9% solar radius. A white dwarf, then, packs mass comparable to the Sun's into a volume that is typically a million times smaller than the Sun's; the average density of matter in a white dwarf must therefore be, very roughly, 1,000,000 times greater than the average density of the Sun, or approximately 106 g/cm3, or 1 tonne per cubic centimetre.[1] A typical white dwarf has a density of between 104 and 107 g/cm3. White dwarfs are composed of one of the densest forms of matter known, surpassed only by other compact stars such as neutron stars, black holes and, hypothetically, quark stars.[30]