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Why does the horizon picture look like it has a mushroom cloud in the background? User:fresheneesz

Eb de Ng g Ed evuhxg de bhcy was no 2001:D08:1395:3737:50BD:D052:F7A1:D8E7 (talk) 12:43, 31 August 2023 (UTC)[reply]

I am confused by the space shuttle photo. If it is the Earth's horizon we are seeing, why is it curving downward, rather than upward as the horizon, as we view it, usually does?

Apparently, because what we see in the photo is not the horizon as we normally view it from a position on or close to the Earth's surface, but from up in space, where it is not the horizon as we think of it, but simply the curvature of the Earth.

Is that too considered the "horizon," meriting inclusion of the photo in this article? That seems counterintuitive.

Or, does it mean that the terms "horizon" and "Earth's curvature" are in fact entirely interchangeable? And when from yet much higher up in outer space the *entire* Earth is seen, what is being observed is simply a "360-degree horizon"? That doesn't seem right at all. 🤔 Toddcs (talk) 18:22, 12 October 2023 (UTC)[reply]

The space shuttle has its top side toward earth, hence the horizon looks upside down. Constant314 (talk) 20:05, 12 October 2023 (UTC)[reply]

I don't think the first sentence in the aforementioned section needs a citation, as the next section is the derivation of the formula supporting said statement. Catreplicators (talk) 01:27, 23 February 2024 (UTC)[reply]

I agree and removed the cn. Constant314 (talk) 02:16, 23 February 2024 (UTC)[reply]

The current article does not include a section that accounts for this.

Found a corresponding citation: https://pubs.aip.org/aapt/ajp/article-abstract/50/9/795/1051974/How-far-away-is-the-horizon?redirectedFrom=fulltext ; Catreplicators (talk) 01:40, 23 February 2024 (UTC)[reply]

It does have such a section and the section does have references. Perhaps you could elaborate. Constant314 (talk) 02:18, 23 February 2024 (UTC)[reply]

My apologies, I am an idiot. Catreplicators (talk) 16:38, 2 March 2024 (UTC)[reply]

We all are, from time to time. Constant314 (talk) 01:12, 3 March 2024 (UTC)[reply]

What if you are at a low point when you are looking at the horizon?

For example, imagine you are looking at the horizon from the shore of Caspian Sea which has an altitude of -28 m (or 28 m below the sea level).

What will the formula be for this scenario? Aminabzz (talk) 17:21, 1 August 2024 (UTC)[reply]