Astronomers report thefirst image of an exoplanetcaptured by JWST , and it ’s a very weird world . The ground - breaking telescope is enounce to have go past expected performance by a component of 10 . It ’s already demonstrated that it canstudy exoplanets ’ atmospheresas they pass in front of their mavin , and now it ’s shown it can straight visualize exoplanets .
The mankind in question is call off HIP 65426b and it ’s truly puzzling . Previous call saidit should n’t existas it does n’t tally our models of exoplanets ( planets outside the Solar System ) , so observations of it are crucial to help astronomers develop good ones .
Firstly , it orb a very young star that has a mass twice our Sun and spin very fast on its axis . It takes just over three hour for a full rotation compared to the 28 Clarence Day of our Sun . That ’s 150 times faster . Also , despite being a star between 15 and 20 million years one-time it has no disk around it from which planets can form . And that ’s just the first part of the mystery story .
HIP 65426b is located about 92 AU from its star , with 1 AU ( astronomic unit ) being the Earth - Sun distance . That ’s three times further out than Neptune . And yet the planet , which is now count on to weigh about seven time that of Jupiter , is raging with a temperature of about 1,000 ° C ( 1,800 ° atomic number 9 ) .
A propose scenario is that the major planet formed with sibling nigher to the star , quick making the disk disappear , and then through a gravitational tug - of - state of war , it terminate up here and the siblings were recede , An alternate scenario sees the star and the planet forming together and the star hoarding most of the stuff , stopping the planet from getting any handsome and sprain into a brown dwarf or a virtuoso .
A paper on this first - ever image of an exoplanet from JWST has been present to the AAS journal and is currently available to read on the online repositoryArXiv . In infrared , the wavelength that JWST use , the planet is between1,000 ( close infrared ) to 100 ( mid - infrared ) timesfainter than its whiz . So it is incredible that the scope can see it so clear .
And while this study does n’t have a definite answer about the pedigree of this peculiar cosmos , it shows what an plus JWST will be for studying exoplanets . impart the right headliner , the team believe that a planet smaller than Saturn and with a exchangeable orbit should be seeable to the space telescope .
If you do n’t thinkHIP 65426bis a great name for such an strange planet , vex not . The International Astronomical Union is currently asking members of the publicto submit proposals for new namesfor this and many other world as we write .
