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Astronomers documented H1504+65, a white dwarf in Ursa Minor with the hottest surface temperature known at the time, at 200,000 kelvins (360,000 °F).
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H1504+65
White dwarf in Ursae Minoris constellation
H1504+65 is an enigmatic peculiar star in the constellation Ursa Minor. With a surface temperature of 200,000 K (360,000°F) and an atmosphere composed of carbon, oxygen and 2% neon, it is the second hottest white dwarf ever discovered, with only RX J0439.8−6809 being hotter. It…Source: Wikipedia (CC BY-SA)
White dwarf
Stellar core remnant
A white dwarf is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: in an Earth-sized volume, it packs a mass that is comparable to the Sun. No nuclear fusion takes place in a white dwarf; what light it radiates is from its…Source: Wikipedia (CC BY-SA)
Ursa Minor
Constellation in the northern celestial hemisphere
Ursa Minor, also known as the Little Bear, is a constellation located in the far northern sky. As with the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the North American name, Little Dipper: seven stars with four in its bowl like its…Source: Wikipedia (CC BY-SA)
Kelvin
SI unit of temperature
The kelvin is the base unit for temperature in the International System of Units (SI). The Kelvin scale is an absolute temperature scale that starts at the lowest possible temperature, taken to be 0 K. By definition, the Celsius scale and the Kelvin scale have the exact same…Source: Wikipedia (CC BY-SA)