如何计算日出，日落和中午 [英] How to calculate sunrise, sunset and noon

问题描述

我正在尝试制作一个程序，根据世界上任何城市的经度，纬度和时区计算日出，日落和太阳中午。



我怎么能在 vb.net 中做到这一点？



谢谢。

I'm trying to make a program that calculates the sunrise, sunset and solar noon based on longitude, latitude and time zone for any city in the world.

How can I do that in vb.net?

Thanks.

推荐答案

日出和日落的计算很容易找到：

https：//en.wikipedia。 org / wiki / Sunrise_equation [ ^ ]

http://users.electromagnetic.net/bu/astro/sunrise-set.php [ ^ ]

http://aa.quae.nl/en/reken/zonpositie.html [ ^ ]



您只需将计算转换为代码。



没有必要计算中午 - 它总是在下午12点。 :)

（除非你的意思是太阳中午，它包含在日出/日落计算中。）



编辑：我发布了我用于GitHub的C＃代码，这可能会给你一个开始的地方：

https://gist.github.com/RichardD2/f6b08a5791b21ac77ce7 [ ^ ]

The calculations for sunrise and sunset are easy to find:
https://en.wikipedia.org/wiki/Sunrise_equation[^]
http://users.electromagnetic.net/bu/astro/sunrise-set.php[^]
http://aa.quae.nl/en/reken/zonpositie.html[^]

You just need to translate the calculation into code.

There's no need to "calculate" noon - it's always at exactly 12 PM. :)
(Unless you mean "solar noon", which is included in the sunrise / sunset calculation.)

I've posted the C# code I use to GitHub, which might give you a place to start:
https://gist.github.com/RichardD2/f6b08a5791b21ac77ce7[^]

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