Fomalhaut b - Wikipedia
网页Fomalhaut b, formally named Dagon (/ ˈ d eɪ ɡ ən /), [2] is a former candidate planet observed near the A-type main-sequence star Fomalhaut, approximately 25 light-years away in the constellation of Piscis Austrinus.
Exoplanet Fomalhaut b On the Move | News | Astrobiology
网页5 天之前 · Fomalhaut b on its 1,700 year elliptica orbit, as seen here in five images taken by the Hubble Space Telescope over seven years. The bar shows a distance of 20 astronomical units, or 20 times the distance from the Sun to the Earth.
NASA’s Hubble Reveals Rogue Planetary Orbit For Fomalhaut B
网页2013年1月8日 · This false-color composite image, taken with the Hubble Space Telescope, reveals the orbital motion of the planet Fomalhaut b. Based on these observations, astronomers calculated that the planet is in a 2,000-year-long, highly elliptical orbit.
A beloved exoplanet turns to dust | Space | EarthSky
网页2020年4月24日 · Fomalhaut b was thought to be one of the few exoplanets photographed so far, but new observations from the Hubble Space Telescope show it's really an expanding dust cloud.
Hubble Takes First Snapshot of Planet Around Another Star
网页2023年4月17日 · Now, astronomers using NASA’s Hubble Space Telescope have taken the first visible-light snapshots of a planet orbiting another star. The images show the planet, named Fomalhaut b, as a tiny point source of light orbiting the nearby, bright southern star Fomalhaut, located 25 light-years away in the constellation Piscis Australis.
New Study Brings a Doubted Exoplanet ‘Back from the Dead’
网页2012年10月25日 · The study suggests that the planet, named Fomalhaut b, is a rare and possibly unique object that is completely shrouded by dust. Fomalhaut is the brightest star in the constellation Piscis Austrinus and lies 25 light-years away.
Hubble Directly Observes a Planet Orbiting Another Star
网页2008年11月13日 · NASA's Hubble Space Telescope has taken the first visible-light snapshot of a planet circling another star. Estimated to be no more than three times Jupiter's mass, the planet, called Fomalhaut b, orbits the bright southern star Fomalhaut, located 25 light-years away in the constellation Piscis Australis, or the "Southern Fish."
Hubble directly observes planet orbiting Fomalhaut
网页2008年11月13日 · The NASA/ESA Hubble Space Telescope has taken the first visible light snapshot of a planet circling another star. Estimated to be no more than three times Jupiter's mass, the planet, called Fomalhaut b, orbits the bright southern star Fomalhaut, located 25 light-years away in the constellation Piscis Austrinus (the Southern Fish).
Hubble Directly Observes a Planet Orbiting Another Star
网页2008年11月13日 · The planet Fomalhaut b is brighter than expected for an object of three Jupiter masses. One possibility is that it has a Saturn-like ring of ice and dust reflecting starlight. The ring might eventually coalesce to form moons. The ring's estimated size is comparable to the region around Jupiter and its four largest orbiting satellites.
ESA Science & Technology - Hubble directly observes planet …
网页2019年9月1日 · Estimated to be no more than three times Jupiter's mass, the planet, called Fomalhaut b, orbits the bright southern star Fomalhaut, located 25 light-years away in the constellation Piscis Austrinus (the Southern Fish).