Best Open Source Astronomy Software 2026

Astronomy Software

Astronomy Turkish Clear Filters

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

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Rent Manager Software
Landlords, multi-family homes, manufactured home communities, single family homes, associations, commercial properties and mixed portfolios.

Rent Manager is award-winning property management software built for residential, commercial, and short-term-stay portfolios of any size. The program’s fully customizable features include a double-entry accounting system, maintenance management/scheduling, marketing integration, mobile applications, more than 450 insightful reports, and an API that integrates with the best PropTech providers on the market.

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1

Stellarium

A planetarium software that shows a 3D simulation of the night sky

Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.

216 Reviews

Downloads: 3,187 This Week

Last Update: 2025-08-18
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2

Halachic Times

Jewish prayer times

Android application that displays list of halachic/halakhic times for Jewish prayers (zmanim and zmanei tefillot).

Downloads: 0 This Week

Last Update: 2019-02-22
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3

MYRaf Project

An Easy GUI for IRAF Photometry

The MYRaf is a practicable astronomical image reduction and photometry software and interface for IRAF. For this purpose, MYRaf uses iraf, PyRAF and alipy via great programming language Python and Qt framework. Also MYRaf is a absolutely free software and distributed with GPLv3 license. You can use it without restrictive licenses, make copies for your friends, school or business.

Downloads: 0 This Week

Last Update: 2016-03-10
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4

Stellarium for Java

Java version of Stellarium.

2 Reviews

Downloads: 0 This Week

Last Update: 2013-04-26
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