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Within Ursa Minor, H1504+65, a white dwarf with the hottest known surface temperature in the universe at 200,000 K, was documented.

Historical image related to Within Ursa Minor, H1504+65, a white dwarf with the hottest known surface temperature in the universe at 200,000 K, was documented. from January 27, 2011

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…
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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…
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January 27

Day of the year

January 27 is the 27th day of the year in the Gregorian calendar; 338 days remain until the end of the year.
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