How to determine exactly where the sun rises and sets based on latitude

• stellarium

  309 6,604 10.0 C++

  Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

  

Do you want a formula or do you wan to just download Stellarium?

• suncalc

  8 2,988 0.0 JavaScript

  A tiny JavaScript library for calculating sun/moon positions and phases.

If you want to do some coding for your website, here is the ready-made javascript for calculating what you want about Sun and Moon: Sun and Moon almanac

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

Suggest a related project