2025年2月15日 · Gaia-5 b is a gas giant exoplanet that orbits a M-type star. Its mass is 20.87 Jupiters, it takes 358.6 days to complete one orbit of its star, and is 0.68947329884405 AU from its star. Its discovery was announced in 2025.

2025年2月7日 · Gaia-5b is a brown dwarf orbiting the Gaia-5 star, around 134 light-years away from Earth. With a mass of around 21 Jupiters, Gaia-5b is more massive than a planet but too light to sustain nuclear fusion to be a star.

Gaia-4b and 5b: Radial Velocity Confirmation of Gaia Astrometric Orbital Solutions Reveal a Massive Planet and a Brown Dwarf Orbiting Low-mass Stars

2025年2月4日 · New research, published today, uses data collected by ESA’s Gaia spacecraft to confirm the existence of two mysterious celestial objects. Gaia-4b is a ‘Super-Jupiter’ exoplanet, and Gaia-5b a brown dwarf. These massive objects are unexpectedly orbiting low-mass stars.

2025年3月4日 · Gaia-5b is a brown dwarf orbiting the Gaia-5 star, around 134 light-years away from Earth. With a mass of around 21 Jupiters, Gaia-5b is more massive than a planet but too light to sustain nuclear fusion to be a star. This artist’s impression visualizes a portion of the orbital motion, as determined by Gaia’s astrometric data.

2025年2月4日 · Gaia-5b is a brown dwarf orbiting the Gaia-5 star, around 134 light-years away from Earth. With a mass of around 21 Jupiters, Gaia-5b is more massive than a planet but too light to sustain nuclear fusion to be a star. This animation visualises a portion of the orbital motion as determined by Gaia’s astrometric data.

2025年2月4日 · Gaia-5b is a brown dwarf with a mass of M = 20.9 ± 0.5M J orbiting a 0.35M ⊙ star with an orbital period of P = 358.62 ± 0.20 days. Gaia-4b is the first confirmed planet with a Gaia astrometric solution in agreement with RV observations.

2024年10月8日 · Gaia astrometry of nearby stars is precise enough to detect the tiny displacements induced by substellar companions, but radial velocity data are needed for definitive confirmation.

2025年2月5日 · Gaia-4b is a ‘super-Jupiter’ exoplanet (11.8 Jupiter masses) orbiting an M- or K-type dwarf star called Gaia-4. The system resides approximately 244 light-years away from Earth. Gaia-5b is a brown dwarf orbiting a nearby mid M dwarf, Gaia-5, which is around 134 light-years away from our planet.

2025年2月4日 · They were able to confirm the existence of Gaia 4b and a brown dwarf, called Gaia 5b, which has a mass of 21 times Jupiter’s and an eccentric 358-day orbit around its host star, which has just 34 percent of the Sun’s mass.