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Eccentric Orbit

All articles tagged with #eccentric orbit

science4 months ago

Newly Discovered Giant Planet Near Earth

A giant exoplanet named GJ 2126 b, about 124 light-years away, has been discovered with an extremely eccentric orbit around its star, completing a revolution every 272.7 days. The planet's highly elongated orbit causes significant temperature and atmospheric variations, and its mass is estimated at least 1.3 times that of Jupiter. The discovery was made using the HARPS spectrograph and adds valuable insight into the dynamics of planetary systems, especially around low-mass stars.

via Earth.com|
#astronomy#eccentric-orbit#exoplanet
science7 months ago

Scientists Discover 'Extreme Cousin' Dwarf Planet at Solar System's Edge

Scientists have discovered a potential new dwarf planet, dubbed 'extreme cousin' of Pluto, named 2017 OF201, which has a highly eccentric orbit around the Sun taking 25,000 years to complete. Its size is estimated to be about one-third of Pluto's diameter, and its orbit suggests it may have been influenced by close encounters with a giant planet. The discovery hints at the possibility of many more such objects in our solar system that are currently undetectable.

via Scripps News|
#2017-of201#dwarf-planet#eccentric-orbit
astronomy2 years ago

Newly Discovered 'Warm Jupiter' Orbits Eccentrically and Misaligned.

Astronomers have discovered a new "warm Jupiter" exoplanet, TOI-1859 b, using NASA's Transiting Exoplanet Survey Satellite (TESS). The planet orbits its parent star on an eccentric and misaligned orbit. The planet has a radius of about 0.86 Jupiter radii and orbits its host every 63.48 days, at a distance of some 0.33 AU from it. The observations found that the sky-projected stellar obliquity for TOI-1859 b is at a level of 38.9 degrees and the orbital eccentricity turned out to be about 0.57. The astronomers suppose that such an eccentric and misaligned orbit of TOI-1859 b is likely due to dynamical interactions, like planet-planet scattering and planet-disk resonance crossing.

via Phys.org|
#astronomy#eccentric-orbit#exoplanet