this post was submitted on 25 Feb 2025
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110
Black Hole The Size of 36 Billion Suns Could Lie at The Heart of Cosmic Horseshoe (www.sciencealert.com)
submitted 3 weeks ago by [email protected] to c/[email protected]
14 comments fedilink hide all child comments
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[โ€“] [email protected] 30 points 3 weeks ago (1 children)

Americans will use anything but the metric system, smh.

/s

[โ€“] [email protected] 10 points 3 weeks ago (1 children)

I would be willing to use grams in this case. Final offer.

[โ€“] [email protected] 8 points 3 weeks ago (1 children)

The sun itself is already 1.988 kQg (kiloquettagrams), having maxed out the SI prefixes. 36 billion suns would be 71.64 TQg (teraquettagrams).

[โ€“] [email protected] 4 points 3 weeks ago

How much is that in bathtubs?

[โ€“] [email protected] 21 points 3 weeks ago (3 children)

That seems big.

[โ€“] [email protected] 10 points 3 weeks ago

Only if true.

[โ€“] [email protected] 5 points 3 weeks ago

Large even

[โ€“] [email protected] 5 points 3 weeks ago

I've seen bigger.

[โ€“] [email protected] 8 points 3 weeks ago (2 children)

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

[โ€“] [email protected] 15 points 3 weeks ago* (last edited 3 weeks ago) (2 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€“] [email protected] 15 points 3 weeks 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 3 weeks ago* (last edited 3 weeks ago) (1 children)

What's the distance to Proxima Centauri?

Edit: It's 268553 AU.

[โ€“] [email protected] 3 points 3 weeks 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.

[โ€“] [email protected] 3 points 2 weeks ago

Thanks! ๐Ÿ™‚