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perspective (mander.xyz)

submitted 1 month ago by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] observantTrapezium@lemmy.ca 86 points 1 month ago

Astrophysicist here. Yes, space is crazy, but interesting things to keep in mind:

The size of a star is determined by something called the photosphere. With those extremely massive stars, you can be hundreds of millions of kilometres "inside" and not yet know it.
Similar story with supermassive black holes, from the perspective of an astronaut falling in, they wouldn't really be able to tell when they cross the horizon because the tidal forces there are very small (they will inevitably fall towards the centre and get spaghettified at some point)

[-] unknown@sh.itjust.works 12 points 1 month ago

Hi Astrophysics,

I always wondered why they draw black holes like they do in that the accretion looks like it's drawn in two planes. I would have thought it would have looked a bit more like a saturns rings? Or is it exactly like saturns rings but we see the whole ring bent round the top because a black hole bends the light around so we can see it? Or is it something else entirely that they are trying to depict here?