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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.
Many of the names chosen were based on world history, mythology and literature. [3] In June 2019, another such project (NameExoWorlds II), in celebration of the organization's hundredth anniversary, in a project officially called IAU100 NameExoWorlds, [ 4 ] [ 5 ] welcomed countries of the world to submit names for exoplanets and their host stars .
The IAU's names for exoplanets – and on most occasions their host stars – are chosen by the Executive Committee Working Group (ECWG) on Public Naming of Planets and Planetary Satellites, a group working parallel with the Working Group on Star Names (WGSN). [1] Proper names of stars chosen by the ECWG are explicitly recognised by the WGSN. [1]
TRAPPIST-1 is a cool red dwarf star [c] with seven known exoplanets. It lies in the constellation Aquarius about 40.66 light-years away from Earth, and has a surface temperature of about 2,566 K (2,290 °C; 4,160 °F). Its radius is slightly larger than Jupiter and it has a mass of about 9% of the Sun.
An ultra-cool dwarf is a stellar or sub-stellar object that has an effective temperature lower than 2,700 K (2,430 °C; 4,400 °F). [1] This category of dwarf stars was introduced in 1997 by J. Davy Kirkpatrick , Todd J. Henry, and Michael J. Irwin .
The Prose and Poetic Eddas, which form the foundation of what we know today concerning Norse mythology, contain many names of dwarfs.While many of them are featured in extant myths of their own, many others have come down to us today only as names in various lists provided for the benefit of skalds or poets of the medieval period and are included here for the purpose of completeness.
Alhana names her nephew Gilthas leader of the elven people and departs. In the Elven Exiles Trilogy, it is revealed that Alhana has gone searching for Porthios, and she eventually finds him in Bianost. She joins his fight to free Qualinesti, comes with him to Khur to save the elves there, and then returns with him to Qualinesti to continue the ...
White dwarfs are stellar remnants produced when a star with around 8 solar masses or less sheds its outer layers into a planetary nebula. The leftover core becomes the white dwarf. It is thought that white dwarfs cool down over quadrillions of years to produce a black dwarf. [15] Neutron star: RX J0720.4−3125: 0.0000064683 – 0.0000077332