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Summary

Description
English: This diagram compares Hubble Space Telescope observations of two "hot Jupiter"-class planets orbiting very closely to different sunlike stars. Astronomers measured how light from each parent star is filtered through each planet's atmosphere. Hubble near-infrared observations were used to measure the spectral fingerprint caused by the presence of water vapor in the atmosphere. HAT-P-38 b did have a water signature indicated by the absorption-feature peak in the spectrum. This is interpreted as indicating the upper atmosphere is free of clouds or hazes. By contrast, a very similar hot Jupiter, WASP-67 b, has a flat spectrum that lacks any water-absorption feature. This suggests that most of the planet's atmosphere is masked by high-altitude clouds.
Date
Source https://hubblesite.org/contents/media/images/2017/22/4050-Image.html
Author NASA, ESA, Zena Levy (STScI)

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Captions

A comparison of the emission spectra of HAT-P-38b and WASP-67.

Items portrayed in this file

depicts

WASP-67b

Hiisi

inception

5 June 2017

media type

image/png

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current22:32, 1 April 2024Thumbnail for version as of 22:32, 1 April 20242,000 × 2,821 (427 KB)400WeirUploaded a work by NASA, ESA, Zena Levy (STScI) from https://hubblesite.org/contents/media/images/2017/22/4050-Image.html with UploadWizard

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