HD 108147, also known as Tupã, is a 7th magnitude

star A star is an astronomical object comprising a luminous spheroid of plasma (physics), plasma held together by its gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked ...

in the

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The origins of the e ...

of Crux in direct line with and very near to the bright star Acrux or Alpha Crucis. It is either a yellow-white or yellow

dwarf Dwarf or dwarves may refer to: Common uses *Dwarf (folklore), a being from Germanic mythology and folklore * Dwarf, a person or animal with dwarfism Arts, entertainment, and media Fictional entities * Dwarf (''Dungeons & Dragons''), a humanoid ...

(the line is arbitrary and the colour difference is only from classification, not real), slightly brighter and more massive than the Sun. The spectral type is F8 V or G0 V. The star is also younger than the Sun. Due to its distance, about 126

light year A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (), or 5.88 trillion miles ().One trillion here is taken to be 1012 ...

s, it is too dim to be visible with unaided eye; with

binoculars Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most binoculars are sized to be held ...

it is an easy target. However, due to its southerly location it is not visible in the northern hemisphere except for the tropics. An extrasolar planet was detected orbiting it in 2000 by the

Geneva Extrasolar Planet Search Team The Geneva Extrasolar Planet Search is a variety of observational programs run by the Geneva Observatory at Versoix, a small town near Geneva, Switzerland. The programs are executed by M. Mayor, D. Naef, F. Pepe, D. Queloz, N.C. Santos, and S. ...

. This exoplanet is "a gas giant smaller than Jupiter that screams around its primary tar in 11 days at only 0.1 AU." This is much closer than the orbit of

Mercury Mercury commonly refers to: * Mercury (planet), the nearest planet to the Sun * Mercury (element), a metallic chemical element with the symbol Hg * Mercury (mythology), a Roman god Mercury or The Mercury may also refer to: Companies * Merc ...

in the Solar System.Musgrave, Ian, ''“Starhopping - The Crux of the Matter”'' in ''‘Sky & Space’'' magazine, September–October 2006, Galaxy publishing. In December 2019, the International Astronomical Union announced the star will bear the name Tupã, after the God of the Guarani peoples of Paraguay. The name was a result of a contest ran in Paraguay by the Centro Paraguayo de Informaciones Astronómicas, along with the IAU100 NameExoWorlds 2019 global contest. It should not be confused with HD 107148, which also has an extrasolar planet discovered in 2006 in the

Virgo constellation Virgo is one of the constellations of the zodiac. Its name is Latin for maiden, and its old astronomical symbol is (♍︎). Lying between Leo to the west and Libra to the east, it is the second-largest constellation in the sky (after Hydra) a ...

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F-type main-sequence stars G-type main-sequence stars 108147 060644 Crux Planetary systems with one confirmed planet Durchmusterung objects {{main-star-stub

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