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A comment on Mount Athos, the “Autonomous Monastic State” of Greece (2016). Parent comment

Re:Mount Athos, the “Autonomous Monastic State” of Greece (2... by Arubis on Friday December 10, 2021 @10:04AM (#29510679)
Depends on what you mean by sunrise/sunset. “The relative position of the sun’s edge drops below/rises above the tangent of the average surface at sea level” is pretty easy to calculate many years out; the complications are deviations in Earth’s orbit. “I can/can’t see the sun anymore” depends on local weather, good luck.
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Re:Mount Athos, the “Autonomous Monastic State” of Greece (2... by registeredcorn on Friday December 10, 2021 @10:31AM (#29511024)
> “I can/can’t see the sun anymore” depends on local weather

For anyone wanting to know a bit more about why this is, here's some additional details:

https://www.youtube.com/watch?v=-sj868IzNrk

https://en.wikipedia.org/wiki/Atmospheric_refraction

Technically, one might also argue something weird like, "If I can see sunlight, it's still daytime" in which case a different phenomina would come into play:

https://www.atoptics.co.uk/highsky/zod1.htm

https://en.wikipedia.org/wiki/Zodiacal_light

What this all comes down to is, roughly speaking, even after the sun has technically set, there's still a bit of leeway before we no longer see the sun/sunlight due additional factors.

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