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Fastfaxr t1_j55r9zb wrote

Diameter os UY scuti: 2.377 billion km

Diameter of sun: 1.393 million km

Ratio: 1706:1

Diameter of hydrogen atom: 6.479 x 10^-14 nautical miles.

Diameter of scaled UY scuti: 17.23 micro meters. About one third the width of a sheet of paper

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its-octopeople t1_j55rq7h wrote

>Diameter of hydrogen atom: 6.479 x 10^-14 nautical miles.

In football pitches please

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King_BowserKoopa t1_j55sjzn wrote

Really? I’m surprised it’s that big. I knew UY Scuti was several times larger than the sun, but if an atom is that small… Neat!

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its-octopeople t1_j55uwbh wrote

I worked it out to 84nm (diameter of H ~ 50×10^-12 m, multiplied by 1708), about the thickness of a bacterial flagellum. Much smaller than this commenter's result. I suspect something went wrong with their odd choice of units.

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Fastfaxr t1_j55y2r1 wrote

(I actually used 10 nm for width of Hydrogen, much larger than your unit)

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King_BowserKoopa t1_j566llg wrote

Ok that’s just blatant misinformation.

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Fastfaxr t1_j56gmf5 wrote

Thats what google report when you search "diameter of hydrogen atom in nanometers"

edit: but googles an idiot

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King_BowserKoopa t1_j566jf8 wrote

Ah. Alright, that makes much more sense. I assumed it would’ve more likely be somewhere around the size of a small bacterium or virus.

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LaidBackLeopard t1_j55scdw wrote

Not sure where to start with the wrongness here. In answer to OP, the size of a molecule. Ask a vague question...

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Fastfaxr t1_j563kn2 wrote

My math is laid out right there. Feel free to check it

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Irishknife t1_j55rwuz wrote

quickly googling. UY Scuti, if placed in our solar system would be be larger than the orbit of Jupiter.

scaling it down to a better example. if the sun was a regulation basketball, UY scuti would roughly be a quarter of a mile in diameter.

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