WASP-18 b Atmospheric Spectrum from James Webb Space Telescope - NASA ...
2024年10月26日 · The team of researchers obtained the thermal emission spectrum of WASP-18 b by measuring the amount of light it emits over NASA’s James Webb Space Telescope’s NIRISS SOSS 0.85-2.8 um wavelength range, capturing 65% of the total energy emitted by the planet.
WASP-18 b - NASA Science
2024年10月24日 · WASP-18 b is a gas giant exoplanet that orbits a F-type star. Its mass is 10.2 Jupiters, it takes 0.9 days to complete one orbit of its star, and is 0.02024 AU from its star. Its discovery was announced in 2009.
Discovery Alert: Webb Maps and Finds Traces of Water in an Ultra …
2023年5月31日 · WASP-18 b, seen in an artist concept, is a gas giant exoplanet 10 times more massive than Jupiter that orbits its star in just 23 hours. Researchers used NASA’s James Webb Space Telescope to study the planet as it moved behind its star.
A broadband thermal emission spectrum of the ultra-hot Jupiter WASP …
2023年5月31日 · WASP-18b is a 10.4 ± 0.4 MJ ultra-hot Jupiter on a 0.94-day orbit around a bright (J mag = 8.4) F6V-type star 19. Our goals were to characterize the atmosphere of WASP-18b and demonstrate the...
James Webb Space Telescope finds water in super-hot exoplanet's ...
2023年6月1日 · The James Webb Space Telescope has found traces of water vapor in the atmosphere of a super-hot gas giant exoplanet that orbits its star in less than one Earth day. The exoplanet in question,...
WASP-18b - Wikipedia
WASP-18b is an exoplanet that is notable for having an orbital period of less than one day. It has a mass equal to 10 Jupiter masses, [1] just below the boundary line between planets and brown dwarfs (about 13 Jupiter masses).
WASP-18b: A 'Hot Jupiter' - Exoplanet Exploration
WASP-18b is a “hot Jupiter,” a giant exoplanet that orbits very close to its star, located about 330 light years from Earth. Specifically, the mass of WASP-18b is estimated to be about ten times that of Jupiter, yet it orbits its star about once every 23 hours.
An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b
2009年8月27日 · Here we report the discovery of planet WASP-18b with an orbital period of 0.94 days and a mass of ten Jupiter masses (10 MJup), resulting in a tidal interaction an order of magnitude stronger...
Anchoring the Energy Budget of the Keystone Jwst ERS Ultra-Hot …
The exoplanet community has identified the massive ultra-hot Jupiter WASP-18b as one of the two keystone planets that will be observed as part of the JWST Transiting Exoplanets Early Release Science (ERS) program.
WASP-18 b Illustration - NASA Science
2024年10月26日 · WASP-18 b, seen in an artist concept, is a gas giant exoplanet 10 times more massive than Jupiter that orbits its star in just 23 hours. Researchers used NASA’s James Webb Space Telescope to study the planet as it moved behind its star.