Timeline for Does the sun's rising/setting angle change every few months?
Current License: CC BY-SA 4.0
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| Nov 6, 2020 at 13:01 | comment | added | PM 2Ring |
I couldn't decide which year length I ought to use for dpy (days per year). Wikipedia isn't consistent: some formulae use 365.25, some 365.24. So I originally went with the Gregorian length, 365.2425. However, I used the anomalistic year in the Equation of Time & mean sunrise time scripts. Another reasonable option is the mean tropical year. OTOH, I guess it's hardly relevant in calculations that completely ignore years. ;)
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| Nov 5, 2020 at 23:58 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 5, 2020 at 15:08 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 4, 2020 at 23:29 | comment | added | JonathanZ | That's good to know (about Sage). Desmos has very nice, smooth, and precise sliders, but the syntax for entering formulas is a real pain and pretty limited. | |
| Nov 4, 2020 at 23:00 | comment | added | PM 2Ring | Thanks, @Jonathan! Yes, this question is about azimuth, not altitude, so your graphs would be a bit off-topic (but maybe you can ask a self-answered question, or find an old relevant question that could do with some graphs). FWIW, Sage does have some animation capabilities. I made a version with a slider for the latitude, but unfortunately the slider doesn't work too well on touchscreen devices: you can click the slider to a new position, but you can't grab it & slide it. And the clicking doesn't give you much precision. Very frustrating! | |
| Nov 4, 2020 at 22:44 | comment | added | JonathanZ | These are nice! I'm almost tempted to post my Desmos interactive graphs simulating the suns elevation over the day where you can vary the latitude and day of year. But they're not quite on subject for the question. I guess I'll have to wait. | |
| Nov 4, 2020 at 22:32 | history | undeleted | PM 2Ring | ||
| Nov 4, 2020 at 22:32 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 4, 2020 at 22:16 | history | deleted | PM 2Ring | via Vote | |
| Nov 4, 2020 at 22:07 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 4, 2020 at 21:53 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 4, 2020 at 21:15 | history | edited | PM 2Ring | CC BY-SA 4.0 |
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| Nov 4, 2020 at 21:01 | history | answered | PM 2Ring | CC BY-SA 4.0 |