this post was submitted on 25 Feb 2025
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Black Hole The Size of 36 Billion Suns Could Lie at The Heart of Cosmic Horseshoe (www.sciencealert.com)
submitted 2 days ago by [email protected] to c/space
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[โ€“] [email protected] 8 points 2 days ago (2 children)

How large would the event horizon of such a black hole be?

[โ€“] [email protected] 14 points 2 days ago* (last edited 2 days ago) (1 children)

I just hopped on this calculator and it says about 710.9 AU, or 106,348,555,982 km (66,081,929,023 miles). So pretty big.

[โ€“] Gradually_Adjusting 13 points 2 days ago (1 children)

Oh my word. 30 AU is roughly the distance to Neptune, so this black hole is almost 24x the diameter of our solar system.

Pretty big, yeah.

[โ€“] [email protected] 2 points 2 days ago* (last edited 2 days ago) (1 children)

What's the distance to Proxima Centauri?

Edit: It's 268553 AU.

[โ€“] Gradually_Adjusting 3 points 2 days ago

Is this what we do now that Google sucks, just ask each other what Wikipedia says?

It's uh, 4.2465 ยฑ 0.0003 light years by the way.