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Mar 2, 2022 at 8:25 history edited Thomas CC BY-SA 4.0
added another picture for comparison
Mar 1, 2022 at 22:19 comment added uhoh @Thomas Thanks for all of that! Please don't equate "I'm not sure your conclusions are supported yet" with suggesting that anything is wrong here. It's just me, and I'm simply not yet sure.
Mar 1, 2022 at 22:14 comment added Thomas @uhoh The paper was published in "Journal of the Croatian Society for Geometry and Graphics" . See also the skycharts I added to my answer, which also prove that this can not be a sunset photo in the northern hemisphere (not to mention that I have never seen such a scenario in 50+ years observing the sky)
Mar 1, 2022 at 22:02 history edited Thomas CC BY-SA 4.0
added more info
Mar 1, 2022 at 19:06 comment added Thomas @DaG Yes, you are right. I removed this note from my answer.
Mar 1, 2022 at 19:04 history edited Thomas CC BY-SA 4.0
Some minor corrections
Mar 1, 2022 at 7:35 comment added DaG No, “altitude” is exactly “altitude”. Check for instance the sentence “For example, in Figure 10 for a waxing moon, the horizontal “boat” moon at high altitude in the west is observed near the equator but not in temperate zones” (and the figure shows the “boat” as corresponding to 75°): hence, they actually refer to a moon high in the sky and seen from a latitude near to 0° (equator).
Feb 28, 2022 at 23:09 comment added uhoh I'm not sure your conclusions are supported yet. The link is to a very nice looking tutorial, not a scientific publication (there's no evidence of peer review) and the Moon's orbit does precess every 18 years. I'll go off and do some Skyfield simulations but I have a hunch that just after sunset in Arizona the Moon can be either left or right of the Sun.
Feb 27, 2022 at 17:26 history answered Thomas CC BY-SA 4.0