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This is a list of coolest stars and brown dwarfs discovered, arranged by decreasing temperature. The stars with temperatures lower than 2,000 K are included. Kirkpatrick et al. 2021 [ 1 ] has a more complete list of nearby objects with a temperature below 2,400 K. Objects with a temperature below 500 K from this paper were included in this list.
The effective temperature of the Sun (5778 kelvins) is the temperature a black body of the same size must have to yield the same total emissive power.. The effective temperature of a star is the temperature of a black body with the same luminosity per surface area (F Bol) as the star and is defined according to the Stefan–Boltzmann law F Bol = σT eff 4.
In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. The lower the color index, the more blue (or hotter) the object is. Conversely, the larger the color index, the more red (or cooler) the object is.
An update of Home Free's 2014 album Full of Cheer called Full Of (Even More) Cheer was released in November 2016 and debuted at number two on the Top Country Albums Chart with 13,000 sold - the band's best performance on the chart at the time. [14] The band has been actively posting videos to their Youtube channel since 2009.
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Main-sequence stars vary in surface temperature from approximately 2,000 to 50,000 K, whereas more-evolved stars – in particular, newly-formed white dwarfs – can have surface temperatures above 100,000 K. [3] Physically, the classes indicate the temperature of the star's atmosphere and are normally listed from hottest to coldest.
The darkest exoplanet known, reflecting less than 1% its star's light. 51 Pegasi b (Dimidium) 1,265 (992 °C) 0.46 M J: T eq: The first exoplanet discovered orbiting a main-sequence star. Kepler-20e: 1,004 ± 14 (735 °C) [27] <0.76 M 🜨 [27] The first planet smaller than Earth discovered after PSR B1257+12 b. Venus (for reference) 735 (462 ...
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