or just a ‘poof’?
I mean the sun is pretty heckin huge
It would a situation of, “who threw that pebble?”
Now I’m imagining the type of event that could cause a planet to move at such a significant percent of c that you could disrupt the sun with it. I don’t think we’re gonna get a planet moving that fast. I think we’d be limited to stellar core remnants to get that kick in velocity.
That’s not how relativity works. Moving quickly relative to what? The planet might be moving slow relative to the local objects where it began its movement, but the local objects at it’s origination point were also moving at some speed, and the group of objects that the local group was in were also moving at some speed, etc etc. And likewise our sun isn’t stationary, it’s also moving relative to everything else, so you could just as easily say the planet is stationary but our sun was moving very quickly toward the stationary planet. There is no thing as an absolute slow/fast when you’re talking about bodies in space. There are tons of ways that a planet sized object could have a fraction-of-c speed relative to our sun.
And there are “rogue planets” out there. They aren’t held into any orbital system, they’re just flying free in empty space. So that part is true as well. It would be very unlikely that some of them AREN’T moving extremely quickly relative to the sun.
We are going to collide with the Andromeda galaxy maybe 1 billion years before the sun fizzles out. Something there with opposite galactic orbit from us could smack into our sun at over 700 km/s.
Okay so I forgot how big the sun is and had that absentminded mental picture moment of “oh it would make a big bang as something 3/4s the size of the sun would hit it”…
This picture was a very helpful reminder of just how out to lunch that thought was. Don’t trust your absent thoughts, folks 😅
The more I learn about the sun, the more I realize those ancient civilizations who worshipped it got it right. Look at that thing it’s fucking huge, scary, and it’s like right there.
it would be absolutely immensely catastrophic from the point of view of the planet … but for us and for the Sun, it would be nothing.
Are you planning something?
For a start, the planet wouldn’t actually collide with the sun on one piece - once the planet crosses the Roche limit it will break apart
Sorry, but that’s wrong.
Roche limit applies in a circular orbit, tidal effects are irrelevant in a head on collision.
Famous example of a comet breaking up from entering Jupiter’s roche limit in a highly eccentric orbit (not circular). Spaghettification is also an example of how tidal forces still apply during a head on collision.
Yeah, but single large mass hitting in one place vs stuff spread out vs planet forming a ring and deorbiting over months/years would affect the outcome
Practically, I’d think there wouldn’t be a huge effect beyond some CMEs - the mass of the earth is a rounding error compared to the sun - but I’m not a cosmologist
All the people on that planet would die.
Due to their free floating nature, rogue planets are typically uninhabited.
