White dwarf are the end process of stars roughly the sizing of our Sun . Once the hydrogen in their core is consumed they ’ll well up up , slowly losing the outer layers , until finally just a stellar core remains . This process is expect to interrupt and put down the closest planets to such wiz , but research worker have now find one that come out to have come through it , mostly whole .
An external team of astronomer report on this survivor in the journalNature . The planet orbit a blanched midget that is about 53 percent the mass of our Sun . The planet is about 1.4 meter the hoi polloi of Jupiter and it is site 420 million kilometers ( 260 million miles ) from its maven . In the solar system , that ’s rough the length between the Sun and dwarf satellite Ceres , the largest object in the Asteroid Belt .
The beingness of world systems surviving the dramatic phases of stellar evolution in snowy dwarfs has always seemed possible . After all , planets have been found surviving more cataclysmal events like supernovae . But so far , stargazer have only been able to discover grounds ofdestroyed planetsorasteroid belt . They also carry to find planets further out and not ( relatively ) this close .
give that 97 percent of sensation in the milklike Way are expected to take this path ( although some wo n’t for maybe jillion of years ) , it is important to understand what might befall to their planetal system . Estimations evoke that one-half of all the white dwarfs have Jupiter - size of it fellow traveller . And this is the first .
The satellite was give away thanks to a technique calledmicrolensing . The satellite ’s sombreness was enough to feign the lighting of its host sensation like a glassful lens would distort the image and brightness of a candle . As the planet strike around the white dwarf , the spark from the white dwarf then changes allowing stargazer to ferment out the presence of this world .
The squad approximate the properties of this gas giant planet based on an original detection in 2010 and conform to - up in 2015 , 2016 , and 2018 . Based on that information , they come up with the current estimate of this system . A gas gargantuan planet orbiting the end - of - the - line for stellar phylogeny . This planetary system is locate 6,500 clear - years away towards the center of the Milky Way .
The planetary system and the others that will certainly be chance on are a window to the future of the Solar System . When the Sun will twist into a red giant , it is bear that Mercury and Venus will be ruin , and even Earth and Mars might have piffling chance of natural selection . Jupiter will still be there , even as the Sun turn into a white dwarf .
