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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]
The first such project (NameExoWorlds I), in 2015, regarded the naming of stars and exoplanets. [1] 573,242 votes were submitted by members by the time the contest closed on October 31, 2015, and the names of 31 exoplanets and 14 stars were selected from these. [2] Many of the names chosen were based on world history, mythology and literature. [3]
There are eight planets within the Solar System; planets outside of the solar system are also known as exoplanets. Artist's concept of the potentially habitable exoplanet Kepler-186f As of 14 February 2025, there are 5,834 confirmed exoplanets in 4,356 planetary systems , with 977 systems having more than one planet . [ 1 ]
The exoplanet naming convention is an extension of the system used for naming multiple-star systems as adopted by the International Astronomical Union (IAU). For exoplanets orbiting a single star, the name is normally formed by taking the name of its parent star and adding a lowercase letter.
First exoplanet to be discovered orbiting a main-sequence star. [188] Prototype of the hot Jupiters. HR 8799 e: 1.17 +0.13 −0.11 [189] ← 9.6 +1.9 −1.8 [190] First exoplanet to be directly observed using optical interferometry. HR 8799 system is also the first directly imaged planetary system having multiple exoplanets. TRAPPIST-1: 1.16 ± ...
Faerûn (/ f eɪ ˈ r uː n / fay-ROON) is a fictional continent and the primary setting of the Dungeons & Dragons world of Forgotten Realms.It is described in detail in several editions of the Forgotten Realms Campaign Setting (first published in 1987 by TSR, Inc.) with the most recent being the 5th edition from Wizards of the Coast, [1] [2] and various locales and aspects are described in ...
Motion interpolation of seven images of the HR 8799 system taken from the W. M. Keck Observatory over seven years, featuring four exoplanets. This is a list of extrasolar planets that have been directly observed, sorted by observed separations. This method works best for young planets that emit infrared light and are far from the glare of the star.
The individual planet data pages also contain the data on the parent star, including name, distance in parsecs, spectral type, effective temperature, apparent magnitude, mass, radius, age, and celestial coordinates (Right Ascension and Declination).