Aciqra (uh-SEE-kruh) is a free and open source planetarium program built for use in the real world. New to the project or its goals? Please read about the project to get a sense of what it is, how it is different and its various releases.

The current stable release is Aciqra 2.1.0 and includes:

• Tycho-2 star catalog w/ 2.5 million stars
• Full NGC and IC catalogs w/ 13000 deep space objects
• Interface designed for efficiency
• Correction for atmospheric refraction
• Night vision mode
• Correction for nutation and precession
• Calculate proper motions for stars
• Selecting objects to show details
• Constellation boundaries
• Option to save a view as an image
• Angle indicator (simulates views from an eyepiece)
• Comets and asteroids tracking
• Earth's umbra and penumbra for lunar eclipse simulations
• New release updater and downloader

Screenshots can be found in the image galleries. Take a look around to get a sense of what it's like to use Aciqra. When ready, proceed to the downloads to try it for yourself. Then, leave us a message about your opinion of the program and how it could be improved.

For help, please see the FAQs.