C# Astronomy Software

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Browse free open source C# Astronomy Software and projects below. Use the toggles on the left to filter open source C# Astronomy Software by OS, license, language, programming language, and project status.

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  • 1
    Arduino ASCOM Focuser Pro2 DIY

    Arduino ASCOM Focuser Pro2 DIY

    Version 2 of the myFocuser Project

    myFocuserPro2 (myFP2) is an ASCOM - INDI - LINUX - WINDOWS telescope focuser with a large range of options. 315,606+ file downloads. The most popular focuser project. (c) Copyright Robert Brown 2014-2026. All Rights Reserved. Code or portions of code may not be copied or used without written permission from the author. Other Focuser Projects myFP2ESP32 WiFi - https://sourceforge.net/projects/myfocuserpro2-esp32/ [ESP32 Only] myFP2ESP8266 WiFi - https://sourceforge.net/projects/myfp2esp8266-focus-controller/ myFP2N - Nextion touch screen display - https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/myFocuserPro2N%20NEXTION%20TFT%20DISPLAY/ myFP2M - Ready made Controllers https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/myFocuserPro2M/ Please look in the Files-Documents folder for more information. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/
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    Downloads: 247 This Week
    Last Update:
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  • 2
    Arduino ASCOM Focuser Pro DIY

    Arduino ASCOM Focuser Pro DIY

    Arduino Focuser, fully ASCOM complaint

    myFocuserPro is an ASCOM and Moonlite compatible stepper motor telescope focus controller (DIY) based on Arduino Nano/Uno. A popular DIY ASCOM focuser with more than 121,000+ downloads. (c) Copyright Robert Brown 2014-2024. All Rights reserved. Permission is granted for personal and Academic use only. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download
    Downloads: 21 This Week
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  • 3
    ChronosXP is a planetary hours astrology program for Windows. It runs from the system tray where it displays a glyph corresponding to the current planetary hour. Planetary hours/days can also be viewed for any given time or location.
    Downloads: 24 This Week
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  • 4
    mySQM+ DIY SQM WEATHER STATION

    mySQM+ DIY SQM WEATHER STATION

    ESP32 mySQM+ Sky-Meter/Weather Station with loads of features

    mySQM+ Sky Quality Meter/Weather Station (c) R Brown, 2020-2025, All rights reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author(s). EXPANSION BOARDS - You can expand this project using the two types of project expansion boards at https://sourceforge.net/projects/myesp-boards/
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    Downloads: 22 This Week
    Last Update:
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  • 5
    Arduino Nano Dew Controller Pro (DIY)

    Arduino Nano Dew Controller Pro (DIY)

    Dew Controller Feature Rich

    A 3-channel fully automated Dew Controller (DIY project) based on Arduino Nano for telescopes. For $48 or less. (c) Copyright Robert Brown 2014-2025. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author. A very popular project with over 48,000 downloads. There is a new ESP32 WiFi version at https://sourceforge.net/projects/esp32-dew-controller/ The older myDCP2 (two-channel dew controller) is found here https://sourceforge.net/projects/arduinonanodewcontrollerpro/files/myDewController%20v200%202channel/
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    Downloads: 13 This Week
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  • 6
    Navigational Algorithms

    Navigational Algorithms

    Navigational Algorithms - Marine navigation

    - Celestial Navigation: Sight Reduction, Line Of Position, Fix... - Positional Astronomy: Nautical Almanac, RA, GHA, Dec - Coastal Navigation: Range, Bering, Horizontal angles, IALA... - Sailings: Rhumbs, Loxodromic, Orthodromic, Meridional parts... - Weather , Tides - Software: PC, Android https://sites.google.com/site/navigationalalgorithms/
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    Downloads: 15 This Week
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  • 7
    myESP32S3-N16R8 WiFi Focuser

    myESP32S3-N16R8 WiFi Focuser

    ESP32S3_DEVKITC_1 N16R8 Wifi focuser

    An ESP32S3 WiFi Focuser (ALPACA-ASCOM-LINUX-INDI-TCPIP-WINDOWS) (c) Robert Brown 2014-2026, Holger M, 2019-2021. All rights reserved. Code or portions of code may not be copied or used without credit given to authors. Read Part1 pdf to determine the board you will need, then download those board files. Downloading all files will cause confusion and hinder your project progress. Both PCB and DIY are supported. After creating the board, go to UserGuide Part2 (Files/Documents) and follow the instructions to program your board. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/myfp2esp32-s3-focus-controller/files/documents/Nema-Stepper-Motors.xlsx/download Spreadsheets to calculate CFZ https://sourceforge.net/projects/myfp2esp32-s3-focus-controller/files/documents/CFZ%20Spreadsheets.zip/download
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    Downloads: 23 This Week
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  • 8
    myFP2ESP32-Dev WiFi ASCOM Focuser

    myFP2ESP32-Dev WiFi ASCOM Focuser

    ASCOM-INDI ESP32-Dev Wifi focuser

    An ESP32-Dev WiFi focuser. DIY or PCB designs. (c) Robert Brown 2014-2025, Holger M, 2019-2021. All rights reserved. Code or portions of code may not be copied or used without appropriate credit given to authors. Spreadsheet to calculate what stepper motor to use. https://sourceforge.net/projects/arduinoascomfocuserpro2diy/files/Documentation/Nema-Stepper-Motors.xlsx/download Spreadsheets to calculate CFZ https://sourceforge.net/projects/myfocuserpro2-esp32/files/CFZ%20Spreadsheets/CFZ%20Spreadsheets.zip/download Focuser Basics Guide (PDF) - shows how to derive the correct motor requirements for your system (mandatory reading) https://sourceforge.net/projects/myfocuserpro2-esp32/files/Documentation/Focuser%20Basics.pdf/download Part1: Download, Configuration and Programming https://youtu.be/90KeSspN3e0 Project is superceded by myESP32S3-N16R8 WiFi Focuser
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    Downloads: 28 This Week
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  • 9

    myFP2ESP8266 Focus Controller

    This is a port of the myFP2ESP32 Wifi Focus Controller to the ESP8266

    A ESP8266 WiFi focuser. DRV8825, ULN2003, L298N, L293DMINI , L9110S, Support for Webserver, ALPACA, and TCP/IP. (c) Robert Brown 2014-2025, Holger M, 2019-2021. All rights reserved. Code or portions of code may not be copied or used without appropriate credit given to author(s).
    Downloads: 18 This Week
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  • 10
    CollimationCircles

    CollimationCircles

    Collimation Circles, app for easy telescope collimation

    This program was inspired by Mire De Collimation program written by Gilbert Grillot and Al's Collimation Aid. I combined best features of both and addes some of my own. Purpose of this program is not to reinvent the wheel, but rather to learn new technologies, become better at colimating my telescope and to learn something new. Main purpose of this program is to help you with aligning optical elements of your telescope such as secondary mirror, primary mirror, focuser, etc. Collimation Circles is developed with .NET 7 and AvaloniaUI Framework using MVVM architecture patern. Program was tested on Windows 10 and 11, Ununtu Linux 22.04.1 LTS (Wayland) and Raspberry PI OS Bullseye. I'm not able to test it on macOS, but it should work. Suggestions and contributions are welcome!
    Downloads: 4 This Week
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  • 11
    EQAlign born as a software that assists to align a German Equatorial Mount (GEM) exactly to the Earth polar axis. Today, in adition to polar align feature, EQAlign is a full featured astronomical software.
    Downloads: 1 This Week
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  • 12
    BertoFocus

    BertoFocus

    Focuser based on ASCOM platform

    It provides an USB connection for the communication with the PC, it uses a stepper motor that provides higher precision, you can set the motor in full step or in microstepp mode (1, 1/2, 1/4, 1/8). The focuser include a temperature sensor. This driver has a ToolBox with which you can control manually the focuser (for example you can set the limits).
    Downloads: 2 This Week
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  • 13
    ESP32 Dew Controller

    ESP32 Dew Controller

    ESP32 4-channel dew controller.

    This is an enhanced 4-Channel automated Dew Controller based on an ESP32 WiFi chip on a PCB and enclosed in a project hobby box. (c) Copyright Robert Brown 2020-2024. All Rights Reserved.Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author. EXPANSION BOARDS - You can expand this project using the two types of project expansion boards at https://sourceforge.net/projects/myesp-boards/
    Downloads: 2 This Week
    Last Update:
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  • 14
    Dark Master

    Dark Master

    Dark Master allows astrophotographers to quickly match dark frames

    Dark Master allows astrophotographers to quickly match dark frames to light frames based on temperature. The inputs to Dark Master are the directories to the light images and dark images. The output is a DeepSkyStacker file list.
    Downloads: 1 This Week
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  • 15
    PGMania

    PGMania

    Astrophotography image & video processor. Full processing cycle

    PGMania is a universal package for processing deep space images. The program provides wide and unique functionality, a powerful and flexible tool with a clear and user-friendly interface. The program performs all image processing cycles for astrophotography, including filtering, cleaning, aligning, image calibrating, stacking, post-processing, format conversion, cropping, rotations, many special operations and much more. PGMania is environmentally friendly - it does not clutter your photos with something that was never there. You get full control over all processing processes and the most clean and accurate result at all cycles. The program has a clear and user-friendly interface and detailed help for all stages of processing.
    Downloads: 1 This Week
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  • 16
    General purpose scientific framework and its astronomy samples
    Downloads: 1 This Week
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  • 17
    Gravity Simulator

    Gravity Simulator

    2D Gravity simulator, including a simulation of the solar system

    This application started out as a study of Newtonian physics, but evolved into a 2D simulation of the solar system. (Viewed from the south, because Jupiter just wouldn't be Jupiter without the great red spot.) The source code is available for developers who would like to make their own customizations and unique scenarios - like sending a black hole through the solar system. For the casual user, this program allows you to truly become familiar with the solar system. Flying a space ship with unlimited fuel, lots of dials to guide you to your destination, and one less dimension to worry about, you can experience the vast distances, enormous speeds and tremendous power of gravity first hand as you travel around the solar system. Yet you will find that space travel still require great skill and patience to master. However, it will also give you the context to understand these huge numbers when you read about space stories in the newspapers. A great tool to get kids interested in space too.
    Downloads: 1 This Week
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  • 18
    MpcReader retrieves comet and asteroid orbital data in MPC format from the web and store it on your computer in different formats. The data is fetched from the MPC. The main job of MpcReader is to convert plain MPC data to the format needed for KStar
    Downloads: 1 This Week
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  • 19
    Program to retrieve APOD (astronomy picture of the day). It automatically downloads today picture or retrieves all pictures for a specific month. Runs on windows.
    Downloads: 1 This Week
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  • 20
    myDCFocuser Arduino Relative DC Focuser

    myDCFocuser Arduino Relative DC Focuser

    Arduino Nano DC Motor Controller

    An Arduino based controller for a DC motor focuser solution. Replaces RigelSys/JMI DC Controllers. Windows application and ASCOM driver available. Works with most DC motor solutions (eg RigelSys, JMI, Orion, Skywatcher etc). Feature rich and low cost. Build the controller for under $25. (c) Copyright Robert Brown 2014-2025. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author.
    Downloads: 1 This Week
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  • 21

    mySolarProjects

    my Solar Projects using Arduino

    A number of Solar projects for users doing Solar Imaging. Solar Scintillation Monitor - monitor solar seeing conditions in real-time Getting rid of Newton Rings Making a FLATS device for imaging the Sun
    Downloads: 1 This Week
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  • 22

    myUSBCtrlr

    myUSBCtrlr

    4Port USB2.0 controller (Arduino Nano) which you can connect/disconnect ports using remote software application. Ideal for Astronomy solutions such as focusers, cameras CCD, filters etc. Windows application provided for remote control. (c) Copyright Robert Brown 2014-2020. All Rights Reserved. Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author.
    Downloads: 1 This Week
    Last Update:
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  • 23

    pgrascom

    ASCOM driver for Firefly MV 0.3MP camera

    Downloads: 1 This Week
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  • 24

    ADV2FITS

    Converts ADV video frames into FITS files

    This is a specialised utility that works with the astronomical digital video (ADV) standard (http://tech.groups.yahoo.com/group/adv-standard/) and converts individual video frames to FITS files. ADV files can be recorded by devices such as the Astronomical Digital Video System (ADVS) - http://www.astrodigitalvideo.com.au/
    Downloads: 0 This Week
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  • 25
    An open platform based on .NET4 that allows to design and serve a wide number of hardware driver for astronomical applications
    Downloads: 0 This Week
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