Gaia-4b is considered a super-Jupiter planet, a relatively cold gas giant, orbiting its star over 570 Earth-days. That star ...

Brown dwarfs typically are defined to have masses anywhere from 12 times the mass of Jupiter right up to the lower limit for a star. And despite their names, they are not actually brown.

In the instance of the star in this study, the brown dwarf is smaller than Jupiter (between 0.65 and 0.95 its radius) but is more massive, somewhere between four and 44 times the mass of Jupiter.

Using the Keck Planet Imager and Characterizer (KPIC), astronomers have performed high-resolution spectroscopic observations ...

ranging from two to 50 times the mass of Jupiter. According to Malhotra, this range includes planetary masses and brown dwarf masses. Brown dwarfs are often referred to as "failed stars." ...

Gaia-4b is a 'Super-Jupiter' exoplanet, and Gaia-5b a brown dwarf. These massive objects are unexpectedly orbiting low-mass stars. Gaia-4b is a planet orbiting the previously unremarkable star ...

ranging from two to 50 times the mass of Jupiter. "This range includes planetary masses to brown dwarf masses," Malhotra said. (Brown dwarfs, often called "failed stars," are odd celestial bodies ...

Such close-orbiting brown dwarfs are rare, with only one other known pair. Gliese 229Ba has a mass 38 times greater than Jupiter, while Gliese 229Bb has a mass 34 times that of Jupiter.

Brown dwarfs (BDs) are intermediate objects between planets and stars, occupying the mass range between 13 and 80 Jupiter masses (0.012 and 0.076 solar masses). Although many brown dwarfs have ...