El telescopio James Webb descubre un planeta gigante templado con metano

Astrónomos que utilizan el telescopio espacial James Webb de la NASA han estudiado la atmósfera de TOI-199b, un raro planeta del tamaño de Saturno con temperaturas de alrededor de 80 grados Celsius. Los hallazgos marcan el primer análisis detallado de un exoplaneta gigante templado.

El planeta orbita una estrella a más de 330 años luz de la Tierra y completa una órbita cada 100 días. Los investigadores detectaron metano en su atmósfera utilizando espectroscopia de transmisión durante un tránsito de siete horas observado a lo largo de un total de 20 horas.

Artículos relacionados

Astronomers using the James Webb Space Telescope have detected an unusually metal-poor atmosphere on the Jupiter-sized exoplanet TOI-5205 b, which orbits a small, cool star. The planet's atmospheric metallicity is lower than that of its host star, challenging theories of giant planet formation. The findings come from a study led by researchers at NASA's Goddard Space Flight Center and Carnegie Science.

Reportado por IA

Astronomers used the James Webb Space Telescope to study the atmosphere of WASP-94A b, a tidally locked gas giant 690 light-years away. The observations revealed cloudy mornings and clear evenings on the planet. The findings were published in Science.

Astronomers at the University of Warwick have used a new AI system called RAVEN to confirm more than 100 exoplanets from NASA's Transiting Exoplanet Survey Satellite (TESS) data. The discoveries include 31 newly identified worlds, many orbiting close to their stars, along with thousands of candidates. The findings reveal rare planet types and precise measurements of planetary occurrence rates around Sun-like stars.

Reportado por IA

New research indicates that hidden oceans on icy moons around outer planets may boil due to tidal heating, explaining unusual surface features. The study, published in Nature Astronomy, focuses on smaller moons like Enceladus, Mimas, and Miranda. Lead author Max Rudolph from UC Davis highlights the processes shaping these worlds over millions of years.

About 65 percent of Saturn's moon Titan consists of uniform flat plains likely coated in up to a meter of fluffy organic material from its atmosphere. Researchers analyzing radar data from NASA's Cassini spacecraft propose a two-layer surface model. This finding could inform future missions to the hazy moon.

Este sitio web utiliza cookies

Utilizamos cookies para análisis con el fin de mejorar nuestro sitio. Lee nuestra política de privacidad para más información.
Rechazar