Actually, the planet with a so big sun cannot appear in the universe. No matter be rock planet, still be gaseous planet, their bulk upper limit acknowledges. The bulk upper limit of rock planet, comparative with the bulk of Jupiter roughly. The bulk upper limit of gaseous planet, it is 6 times of Jupiter bulk at most. And the bulk of Jupiter far not as good as the bulk of the sun, reach the 1/1000 of sun bulk only. So, place of the person that quiz imagines " a planet that comparatives with sun bulk " , be impossible to exist inside real world.
If the bulk of this kind of planet continues to expand, achieve the sun really so big, with respect to regular meeting evolution is a star. And it is above star, be impossible to be put in all life. OK without any life the sidereal interior that in high pressure of a high temperature Gao Fu shoots lives. If have certainly, also can consist in moves the illusion that overflows novel of black perhaps unreal in. So, the planet of fiction of this query place, itself is impossible to exist.
The planet has bulk upper limit, and star also has bulk upper limit. The biggest star, have two kinds of views at present. Mainstream viewpoint thinks, shield UY star is current foregone the biggest star, it is one is located in shield red spy supergiant. Its radius, achieved 1708 times of sun diameter. Can expand after the sun for red giant star, volume can rise a lot of times, although volume is very large, but its density is very small, especially its surface, the vacuum density that density makes than the lab on the earth is small still. 51
