floofloof@lemmy.ca to [Dormant] moved to [email protected]@lemmy.worldEnglish · 4 个月前Black Hole The Size of 36 Billion Suns Could Lie at The Heart of Cosmic Horseshoewww.sciencealert.comexternal-linkmessage-square14fedilinkarrow-up1111arrow-down11
arrow-up1110arrow-down1external-linkBlack Hole The Size of 36 Billion Suns Could Lie at The Heart of Cosmic Horseshoewww.sciencealert.comfloofloof@lemmy.ca to [Dormant] moved to [email protected]@lemmy.worldEnglish · 4 个月前message-square14fedilink
minus-squareIsa@feddit.orglinkfedilinkarrow-up8·4 个月前How large would the event horizon of such a black hole be?
minus-squarefloofloof@lemmy.caOPlinkfedilinkEnglisharrow-up15·edit-24 个月前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.
minus-squareBrave Little Hitachi Wand@lemmy.worldlinkfedilinkEnglisharrow-up15·4 个月前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.
minus-squarethreelonmusketeers@sh.itjust.workslinkfedilinkEnglisharrow-up2·edit-24 个月前What’s the distance to Proxima Centauri? Edit: It’s 268553 AU.
minus-squareBrave Little Hitachi Wand@lemmy.worldlinkfedilinkEnglisharrow-up3·4 个月前Is this what we do now that Google sucks, just ask each other what Wikipedia says? It’s uh, 4.2465 ± 0.0003 light years by the way.
How large would the event horizon of such a black hole be?
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.
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.
What’s the distance to Proxima Centauri?
Edit: It’s 268553 AU.
Is this what we do now that Google sucks, just ask each other what Wikipedia says?
It’s uh, 4.2465 ± 0.0003 light years by the way.
Thanks! 🙂
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