List of observatory software
# List of observatory software

The following is a list of astronomical observatory software.

## Commercial software

* MaximDL
* XEphem

## Non-commercial software

* Aladin Sky Atlas
* Astropy
* Cartes du Ciel
* Celestia
* Google Sky
* Hallo Northern Sky
* IRAF
* Instrument Neutral Distributed Interface
* KStars
* NASA World Wind
* PP3
* SpaceEngine
* Space Telescope Science Data Analysis System
* Starlink Project
* Stellarium
* WorldWide Telescope
