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Astronomers discover first "ice giant" exoplanet

RATE THIS! +18
Posted in Science on 28th Oct, 2014 09:33 PM by AlexMuller
Astronomers have discovered hundreds of planets around the Milky Way, including rocky planets similar to Earth and gas planets similar to Jupiter. But there is a third type of planet in our solar system, part gas, part ice, and this is the first time anyone has spotted a twin for our so-called “ice giant” planets, Uranus and Neptune.
 
While Uranus and Neptune are mostly composed of hydrogen and helium, they both contain significant amounts of methane ice, which gives them their bluish appearance. Given that the newly discovered planet is so far away, astronomers can’t actually tell anything about its composition. But its distance from its star suggests that it’s an ice giant, and since the planet’s orbit resembles that of Uranus, the astronomers are considering it to be a Uranus analog.
 
Regardless, the newly discovered planet leads a turbulent existence: it orbits one star in a binary star system, with the other star close enough to disturb the planet’s orbit. The find may help solve a mystery about the origins of the ice giants in our solar system, said Andrew Gould, professor of astronomy at Ohio State.
 
“Nobody knows for sure why Uranus and Neptune are located on the outskirts of our solar system, when our models suggest that they should have formed closer to the sun,” Gould said. “One idea is that they did form much closer, but were jostled around by Jupiter and Saturn and knocked farther out.”
 

Tags: spaceplanetsexoplanetastronomygalaxyuniverseice

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Comments

Author: Guest
Posted: 2014-10-29
+0
Finding planets that are analogs to those in the solar system is interesting and in general classifying planets would make the task easier - this should apply to earth analogs as well Reply
Author: Guest
Posted: 2015-02-18
+0
" Résidence Belle Vue - France, Saint François Longchamp - Odalys Vacances, Location de vacances" Reply
Author: Guest
Posted: 2015-02-18
+0
Petite annonce gratuite à Fontenay sous bois. AUTHENTIQUE GRAND SAC CABAS LONGCHAMPS ligne roseau argent tout cuir bleu marine presque noir boursouflures par endroit d'où le petit prix mais garde tout son charme et a de nombreuses année devant lui grand volume ... Reply
Author: Guest
Posted: 2016-05-06
+0
Daantje, inderdaad nog bedankt voor de trigger. Ik had al in gedachten om hierover te schrijven omdat het misverstand dat time management de oplossing is voor uitegsltedrag door zo weinigen wordt herkend.Jouw berichtje heeft me doen besluiten om er nu al over te schrijven. En sterker nog, er komt ook nog een deel II. Reply


 

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