this post was submitted on 29 Nov 2023
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Astronomy
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'nearby'
100ly away.
In space that is nearby.
If we scaled the milky way to the size of earth, that would be about 15km away.
If we scaled the observable universe to the size of earth that would be about 4mm away.
“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy
100 ly years is actually kind of far. It is farther than most of our named stars. I wouldn't consider it 'nearby'.
That was my point, Human scale vs astrophysical scale.
100 ly is not in our local intersteller neighborhood. It is 3x farther than even Arcturus.
Good thing I never said it was.