File:Ultra-hot-neptune.jpg

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Captions

Captions

Artist's impression of an ultra-hot Neptune

Summary

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Description
English: Ultra-hot Neptunes are hot Neptunes with very extreme high temperature ranges. LTT 9779 b is the first ultra-hot Neptune discovered with an orbital period of 19 hours and an atmospheric temperature of over 1700 degrees Celsius. Being so close to its star and with a mass around twice that of Neptune, its atmosphere should have evaporated into space so its existence requires an unusual explanation. A candidate planet around Vega slightly more massive than Neptune was detected in 2021. It orbits Vega, an A-class star, every 2.43 days, and with a temperature of about 2500 degrees Celsius would be the second-hottest planet on record if confirmed.
Date
Source Own work
Author Pablo Carlos Budassi

Planet concept illustrated especially for Wikimedia Commons by Pablo Carlos Budassi. Source: https://www.pablocarlosbudassi.com/2021/02/planet-types.html Background image by ESO/Serge Brunier: https://commons.wikimedia.org/wiki/File:ESO_-_Milky_Way.jpg Suggestions for improving this image are welcome: pablocarlosbudassi@gmail.com

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current18:02, 15 August 2023Thumbnail for version as of 18:02, 15 August 20231,080 × 1,080 (435 KB)Celestialobjects (talk | contribs)Uploaded own work with UploadWizard

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