Fomalhaut (UK: /ˈfɒməloʊt/, US: /ˈfoʊməlhɔːt/[15]) is the brightest star in the southern constellation of Piscis Austrinus, the Southern Fish, and one of the brightest stars in the night sky. It has the Bayer designation Alpha Piscis Austrini, which is an alternative form of α Piscis Austrini, and is abbreviated Alpha PsA or α PsA. This is a class A star on the main sequence approximately 25 light-years (7.7 pc) from the Sun as measured by the Hipparcos astrometry satellite.[16] Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.[17]
It is classified as a Vega-like star that emits excess infrared radiation,[18][19] indicating it is surrounded by a circumstellar disk.[20] Fomalhaut, K-type main-sequence star TW Piscis Austrini, and M-type, red dwarf star LP 876-10 constitute a triple system, even though the companions are separated by approximately 8 degrees.[21][22]
Fomalhaut was the first stellar system with an extrasolar planet candidate imaged at visible wavelengths, designated Fomalhaut b. However, analyses in 2019 and 2023 of existing and new observations indicate that Fomalhaut b is not a planet, but rather an expanding region of debris from a massive planetesimal collision.[23][24][19]
^"Fomalhaut". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
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^Wells, John C. (2008). Longman Pronunciation Dictionary (3rd ed.). Longman. ISBN 978-1-4058-8118-0.
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^Andrews, Robin George (8 May 2023). "Webb Telescope Finds a Star Cloaked in 3 Rings of Ruined Worlds - Astronomers have gained a new understanding of the chaos that wreathes the bright star Fomalhaut with the help of the powerful space observatory". The New York Times. Archived from the original on 8 May 2023. Retrieved 8 May 2023.
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^Andreoli, Claire (20 April 2020). "Exoplanet Apparently Disappears in Latest Hubble Observations". NASA. Retrieved 21 April 2020.
Fomalhaut (UK: /ˈfɒməloʊt/, US: /ˈfoʊməlhɔːt/) is the brightest star in the southern constellation of Piscis Austrinus, the Southern Fish, and one of...
Fomalhaut b, formally named Dagon (/ˈdeɪɡən/), is a directly imaged extrasolar object and former candidate planet observed near the A-type main-sequence...
Fomalhaut C, also designated LP 876-10, is the distant third star of the Fomalhaut system. It is about five degrees from Fomalhaut, roughly halfway between...
USS Fomalhaut (AK-22/AKA-5/AE-20) was a Fomalhaut class attack cargo ship named after Fomalhaut, a star in the southern constellation Piscis Austrinus...
brighter than 4th magnitude: Fomalhaut, which is 1st magnitude and the 18th-brightest star in the night sky. Fomalhaut is surrounded by a circumstellar...
Sometimes these disks contain prominent rings, as seen in the image of Fomalhaut on the right. Debris disks are found around stars with mature planetary...
Fomalhaut Nunatak (70°58′S 66°40′W / 70.967°S 66.667°W / -70.967; -66.667) is an isolated, flat-topped nunatak near the head of Ryder Glacier, 6.5...
TW Piscis Austrini (also known as Fomalhaut B) is a main sequence star in the constellation Piscis Austrinus. It lies relatively close to the Sun, at...
captured images of Fomalhaut, a young star located 25 light-years (ly) from Earth. Scientists conducted simulations and tests on Fomalhaut’s asteroid belt...
comets). Hence the debris disks around these examples (e.g. Vega, Alphecca, Fomalhaut, etc.) are not truly "protoplanetary", but represent a later stage of...
A0Ib – Eta Leonis A0Ia – HD 21389 A1V – Sirius A A2Ia – Deneb A3Va – Fomalhaut F-type stars have strengthening spectral lines H and K of Ca II. Neutral...
Taurus and Auriga), Nu Boötis (Nu1 and Nu2)(in Boötes and Hercules) and Fomalhaut (in Piscis Austrinus and Aquarius).: p. 23 Bayer assigned the first three...
astrology, the royal stars of Persia are Aldebaran, Regulus, Antares and Fomalhaut. They were regarded as the guardians of the sky during the time of the...
extrasolar ring system has been found by this method, around HIP 41378 f. Fomalhaut b was found to be large and unclearly defined when detected in 2008. This...
that freezes whatever it touches. The being came to Earth from the star Fomalhaut, briefly visiting the planet Yaksh (Neptune) before taking up residence...
the 2015 event include the planets around Epsilon Eridani (10.5 ly) and Fomalhaut, while planets named in the 2022 event include those around Gliese 436...
each other every 156 days, and, as a group, orbit A every 25.7 years. Fomalhaut (α PsA, α Piscis Austrini) is a triple star system in the constellation...
company saw the console as a key earnings driver for 2017 and beyond. Fomalhaut Techno Solutions, a Japanese product teardown firm, estimated that the...
low-mass star instead of a planet. The brightness of optical images of Fomalhaut b could be due to starlight reflecting off a circumplanetary ring system...
Bibcode:2007ApJ...668L.107M. doi:10.1086/523104. S2CID 10881419. "Webb looks for Fomalhaut's asteroid belt and finds much more". October 17, 2023. Cotton, D. V.;...
the Sol system Barnard's World – Located in the Barnard's Star system, Fomalhaut Heaven's Gate – Orbiting the star Alpha Lyrae or Vega NGCes 2629-4BIV...
stars that have been identified as part of the group include Castor, Fomalhaut, Vega, α Cephei and α Librae. While the reported group members are young...
of the stars used, including Betelgeuse, Rigel, Vega, Aldebaran, and Fomalhaut are several of the names that come directly from Arabic origins or are...