Astronomers uncover largest group of rogue planets yet

Post by TaylorAlexander » Sat, Jan 01, 2022, 10:32 PM UTC

wumpus wrote: post #10

TaylorAlexander wrote: post #7

I’m imagining at least one rogue planet out there (they said they could be billions) was happily orbiting a star for billions of years, life formed, even relatively intelligent life, and then another rogue planet fell in to the solar system and passed right by the first planet in such a way as to eject it from the solar system without hitting it, and all this life on the planet suddenly loses daylight as their planet…

https://en.wikipedia.org/wiki/A_Pail_of_Air full text: https://www.gutenberg.org/ebooks/51461

Post by LargoLasskhyfv » Sat, Jan 01, 2022, 11:30 PM UTC

rd07 wrote: post #9

TaylorAlexander wrote: post #7

I’m imagining at least one rogue planet out there (they said they could be billions) was happily orbiting a star for billions of years, life formed, even relatively intelligent life, and then another rogue planet fell in to the solar system and passed right by the first planet in such a way as to eject it from the solar system without hitting it, and all this life on the planet suddenly loses daylight as their planet…

This could be a scenario for a doomsday movie. On another note, I wonder if our solar system has been visited by such rogue planet in the past.

Post by wumpus » Sat, Jan 01, 2022, 11:57 PM UTC

TheOtherHobbes wrote: post #8

Jeff_Brown wrote: post #6

Earlier quoted context omitted.

Above 13 Jupiter masses would it have to be a burned out star?

Brown dwarf? Some sputtering early attempts at fusion, but not enough to become self-sustaining. 13 Mj is on the low side of the definition. It's not a definitive number and goes as high as 80 Mj, depending who you ask.

Post by almostdeadguy » Sun, Jan 02, 2022, 1:07 AM UTC

Post by hffft » Sun, Jan 02, 2022, 2:58 AM UTC