Astronomers discover HD 131399Ab, planet with three suns

Comments (2)

A team of international astronomers for the first time have spotted a gaseous planet with three suns and a mass four times that of Jupiter and located 320 light years away in the constellation of Centaurus the planet, known as HD 131399Ab.

Planet HD 131399Ab was spotted by team of astronomers led by University of Arizona by using Very Large Telescope at the European Southern Observatory located in the Atacama Desert of Chile.

It should be noted that binary solar systems (having two stars or suns) are relatively common in the universe but solar systems having three or more stars are very rare.

Facts about HD 131399Ab :

HD 131399 Ab is located at a distance of 320 light-years from Earth in the constellation Centaurus. It is belived to be 16 million years old and is one of the youngest planets to be discovered outside our solar system.

One orbit of HD 131399 Ab takes 550 years. During about 1/4 of the orbit i.e, 100–140 years, all three suns are visible during a single day. During this period of time any spot on the planet is in perpetual sunlight—as the single sun sets, the binary pair rises.

Composition : A gas giant, it is primarily composed of hydrogen and helium, with an upper atmosphere that contains a mix of water and methane. Below that, the researchers predict, are clouds of tiny silicate grains, with the deeper regions of the atmosphere boasting clouds of liquid iron.

Although the planet has a mass four times that of Jupiter, the planet has temperature of about 850K (577 degrees celsius) which is far cooler than other exoplanets detected using the same technique.

Spectro-Polarimetric High-Contrast Exoplanet Research (SPHERE)

Spectro-Polarimetric High-Contrast Exoplanet Research Instrument based in Chile allows astronomers to take a direct image of exoplanets, provided they orbit far enough away from their star and are hot enough to allow detection by thermal imaging.

This instrument  offers advantages over instruments such Nasa’s Kepler Space Observatory as it has ability to correct the image distortion (twinkle) introduced by the Earth’s atmosphere. This technique is called direct imaging.

Practice Questions
Q1
Q.no:-1/5
 

Comments

  • escompte christian louboutin shoesbottes Christian Louboutinsortie christian louboutin Panier : Christian Louboutin outlet, clfordiscount.top language:                                              Welcome! Se connecter ou registre Votre chariot est vide Accueil 2016 Christian Louboutin Christian Louboutin Bottes Sandals Christian Louboutin Devises US Dollar Euro GB Pound Canadian Dollar Australian Dollar Jappen Yen Norske Krone Swedish Krone Danish Krone CNY Catégories Chaussures homme Chaussures pour femmes Accueil ::  Panier Votre panier est vide. Nouveaux produits pour juinFlat Grey Rantus Orlato Hommes / Ivoire Python - Chaussures Homme - Christian Louboutin€1,855.35  €185.07Economie : 90% Flat Marron Glace / Popcorn Cuir Roller-Boat Hommes - Chaussures Hommes - Christian Louboutin€1,157.85  €164.61Economie : 86% Flat Marron Glace / Popcorn en cuir Louis Spikes Hommes - Chaussures Hommes - Christian Louboutin€1,250.85  €167.40Economie : 87% Flat Multi / Carmin-Night Patent Leather Pik Boat Hommes - Chaussures Hommes - Christian Louboutin€925.35  €157.17Economie : 83% Flat multi Strass de Gondolastrass Hommes - Chaussures Hommes - Christian Louboutin€1,390.35  €171.12Economie : 88% Flat Navy Canvas Pik Boat Hommes - Chaussures Hommes - Christian Louboutin€878.85  €156.24Economie : 82% Flat Navy-Pavot de Rantus Orlato Hommes Tissu Basque - Chaussures Homme - Christian Louboutin€878.85  €156.24Economie : 82% Flat Noisette Python Lou Spikes Hommes - Chaussures Hommes - Christian Louboutin€1,669.35  €179.49Economie : 89% Flat or Strass de Gondolastrass Hommes - Chaussures Hommes - Christian Louboutin€1,390.35  €171.12Economie : 88% Produits PharesTreliliane 30 Nude / Patent Gold - Chaussures Femme - Christian Louboutin€646.35  €148.80Economie : 77% Šlikova 100 Nude Patent Leather - Chaussures Femme - Christian Louboutin€832.35  €154.38Economie : 81% Demi Vous 100 Off White Satin - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Une Plume Sling 140 Nude en cuir verni - Chaussures Femme - Christian Louboutin€739.35  €151.59Economie : 79% Mec Sporty plat cuir noir - Chaussures Homme - Christian Louboutin€2,785.35  €212.97Economie : 92% Fifi 120 Black Patent Leather - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Cataclou 140 Black Suede - Chaussures Femme - Christian Louboutin€739.35  €151.59Economie : 79% Doracora Flat Black / Red Patent Leather - Chaussures Femme - Christian Louboutin€646.35  €148.80Economie : 77% Nouveaux Très Prive 120 brevets en cuir noir - Chaussures Femme - Christian Louboutin€906.75  €157.17Economie : 83% Dorispiky 100 Noir / Argent Cuir - Chaussures Femme - Christian Louboutin€832.35  €154.38Economie : 81% Ares plat en cuir noir - Chaussures Femme - Christian Louboutin€581.25  €146.94Economie : 75% Baila de Spike 100 Noir / Argent Cuir - Chaussures Femme - Christian Louboutin€925.35  €157.17Economie : 83% Promotions du mois de juinPigalle 100 Black Patent Leather - Chaussures Femme - Christian Louboutin€739.35  €151.59Economie : 79% Pigalle 100 Cuir noir - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Pigalle 100 Cuir noir - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Pigalle 100 Nude Patent Leather - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Pigalle 120 Black Patent Leather - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Pigalle 120 Patent Nude - Chaussures Femme - Christian Louboutin€627.75  €148.80Economie : 76% Accueil     livraison     De gros     Suivi de commande     Bons de réduction     Moyens de paiement     Contactez nous     Christian Louboutin 2014   Christian Louboutin Pompes   Christian Louboutin   Sandals Christian Louboutin   Christian Louboutin Hommes   Copyright © 2012 Tous droits réservés. Chaussures pour hommes Chaussures Hommes boutique en ligne homme blog Panier About clfordiscount.top blog
  • [b]Accessoires de mode gros Accessoires de mode 2016