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A comment on Astronomers reveal first image of the black hole at the heart of our galaxy. Parent comment

Re:Astronomers reveal first image of the black hole at the h... by Dave_Rosenthal on Thursday May 12, 2022 @12:30PM (#31356410)
https://www.wolframalpha.com/input?i=50+microarcseconds+*+%2...

The answer is ~200 picometers.

Wolfram lists some helpful comparisons:

1/2 the distance between base pairs in DNA

3x the atomic diameter of helium (the smallest atom)

Suffice to say you'd have a hard time seeing it as it would be 3,000x smaller than the wavelength of visible light.

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Re:Astronomers reveal first image of the black hole at the h... by devoutsalsa on Thursday May 12, 2022 @05:02PM (#31360086)
Hydrogen isn’t smaller than helium? Or hydrogen isn’t an atom?
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Re:Astronomers reveal first image of the black hole at the h... by edgyquant on Friday May 13, 2022 @12:46PM (#31369862)
Helium has the smallest atomic radius
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Re:Astronomers reveal first image of the black hole at the h... by VikingCoder on Thursday May 12, 2022 @01:19PM (#31357031)
Thank you! That's freaking bonkers.
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