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Can predict elevation; how about azimuth too? #205

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jidanni opened this issue May 15, 2021 · 2 comments
Open

Can predict elevation; how about azimuth too? #205

jidanni opened this issue May 15, 2021 · 2 comments

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@jidanni
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jidanni commented May 15, 2021

In ephem/doc/*.rst we see we can adjust *.horizon to figure out when the e.g., Sun will reach a given
elevation.

Perhaps add an example of how to figure out when the Sun will cross a
certain azimuth.

Yes, transit will find it for the current meridian. But that is just a
special north south case of a more general case. Please add examples.

@brandon-rhodes
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brandon-rhodes commented Nov 23, 2021

(I’ve been leaving this issue open in case any contributors have time to either write up a general-purpose guide to how to find astronomical circumstances, using maybe bisection, or Newton’s Method, or else decide to try tackling your specific case and writing an azimuth-finder for you. As we have only been hearing crickets, it may be that we have no volunteers who are interested. We can keep the issue open for a bit while longer to see, though!)

@drbitboy
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I'm interested, but it may not get to the top of my queue.

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