The N.I.N.A. source code itself is licensed under the Mozilla Public License Version 2.0. However it depends on various third party libraries which carry their own copyright notices and license terms which are explained below.

Library Project Site License
Accord http://accord-framework.net/ GNU Lesser General Public License version 2.1
ASCOM https://ascom-standards.org/ The MIT License
AsyncEnumerator https://github.com/Dasync/AsyncEnumerable The MIT License
Castle Core https://github.com/castleproject/Core Apache 2.0
CommunityToolkit.Mvvm https://github.com/CommunityToolkit/dotnet The MIT License
CoreWCF.WebHttp https://github.com/CoreWCF/CoreWCF The MIT License
CSharpFITS http://vo.iucaa.ernet.in/~voi/CSharpFITS.html The 3-Clause BSD License
CsvHelper https://joshclose.github.io/CsvHelper/ Microsoft Public License (MS-PL)
Dirkster.Avalondock https://github.com/Dirkster99/AvalonDock Microsoft Public License (MS-PL)
Fastenshtein https://github.com/DanHarltey/Fastenshtein The MIT License
Google.Protobuf https://github.com/protocolbuffers/protobuf The 3-Clause BSD License
Grpc https://github.com/grpc/grpc-dotnet Apache 2.0
GrpcDotNetNamedPipes https://github.com/cyanfish/grpc-dotnet-namedpipes Apache 2.0
Iconic.Zlib.Netstandard https://github.com/HelloKitty/Iconic.Zlib.Netstandard zlib License
K4os.Compression.LZ4 https://github.com/MiloszKrajewski/K4os.Compression.LZ4 The MIT License
MdXaml https://github.com/whistyun/MdXaml The MIT License
Newtonsoft.Json https://www.newtonsoft.com/json The MIT License
Nito.AsyncEx https://github.com/StephenCleary/AsyncEx The MIT License
Nito.Disposables https://github.com/StephenCleary/Disposables The MIT License
Nito.Mvvm.Async https://github.com/StephenCleary/Mvvm The MIT License
NikonCSWrapper https://sourceforge.net/projects/nikoncswrapper/ Creative Commons Attribution 3.0 Unported License
NJsonSchema https://github.com/RicoSuter/NJsonSchema The MIT License
NOVAS 3.1 https://aa.usno.navy.mil/software/novasc_intro No license requirements
OxyPlot https://oxyplot.github.io/ The MIT License
Serilog https://serilog.net/ Apache 2.0
SharpGIS.NmeaParser https://dotmorten.github.io/NmeaParser/ Apache 2.0
Swashbuckle.AspNetCore https://github.com/domaindrivendev/Swashbuckle.AspNetCore The MIT License
SOFA https://www.iausofa.org/ SOFA Software License
System.Data.SQLite https://system.data.sqlite.org/ https://www.sqlite.org/copyright.html
ToastNotifications https://github.com/raflop/ToastNotifications GNU Lesser General Public License version 3
ToggleSwitch https://archive.codeplex.com/?p=toggleswitch Microsoft Public License (MS-PL)
Trinet.Core.IO.Ntfs https://github.com/RichardD2/NTFS-Streams The 2-Clause BSD License
VVVV.FreeImage http://freeimage.sourceforge.net/ FreeImage Public License - Version 1.0
Wpf Extended Toolkit https://github.com/dotnetprojects/WpfExtendedToolkit Microsoft Public License (MS-PL)