AASharp is a C# port of PJ Naughter's static C++ library, AA+. Naughter's library implements the algorithms in Jean Meuss' book, "Astronomical Algorithms."
ISBN-13: 978-0943396613
ISBN-10: 0943396611
This library is available as a NuGet package : https://www.nuget.org/packages/AASharp PM> Install-Package AASharp
If you are interested in these algorithms in Obj-C, Swift, or Javascript, @onekiloparsec maintains a repo here: https://github.com/onekiloparsec/SwiftAA