Fomalhaut
White main-sequence star · Alpha Piscis Austrini
Bright nearby star with a famous debris disk
Fomalhaut is a young, hot white star in the southern sky surrounded by a striking ring of dusty debris that has been directly imaged by Hubble and Webb. Standing apart from other bright stars, it long served as a lone autumn marker.
Illustration generated from temperature, not a photograph
1.9 ☉
mass (the Sun = 1)
17 ×
as bright as the Sun
8,590 K
surface · white star
2 R☉
radius (the Sun = 1)
25 ly
from Earth
1.2
apparent magnitude
It pours out about 17 times the Sun’s light. Its light has been travelling 25 years to reach us, so you see Fomalhaut as it was 25 years ago.
Source · View on Wikidata
It lives in
Milky Way
Barred spiral galaxy.
Other notable stars in Milky Way
Eta CarinaeLuminous blue variableAlnilamBlue supergiantVY Canis MajorisRed hypergiantAlnitakHot blue supergiantDenebBlue-white supergiantMintakaHot blue giant multiple star
Stars of similar brightness
DenebolaWhite main-sequence star15 ×AltairWhite main-sequence star11 ×RasalhagueWhite giant (rapid rotator)31 ×MizarBlue-white multiple star33 ×ProcyonYellow-white subgiant6.9 ×VegaBlue-white main-sequence star40 ×
Worlds in the same direction on the sky→