Kepler Mission Interactive Simulator
- Created by NASA, this software allows the user to learn about planetary detection, the Kepler Mission, and simulate an environment in which they may collect and analyze fictional data about planets.
- http://kepler.nasa.gov/ed/

Startime
- Personal time and calendar program that provides astronomical data.
- http://www.paganlink.org/library/astronomy/startime.html

Starry Night Home
- The Realistic Astronomy Software. Winner of the prestigious Best Interface award, this product shows the night sky from any place or time, more realistically than any other program.
- http://www.starrynight.com/

Stargazer's Delight
- A shareware desktop planetarium for the Macintosh.
- http://www.stargazersoft.com

Procyon Systems
- Offers a collection of astronomy software to be used on Macintosh laptops in the field, hardware interfaces, and a robotics automation system.
- http://www.procyon-sys.com

Astronomica
- An easy-to-use, feature-packed sky map generator by EasySoft Creations. It lets you see the stars, Moon and planets from any point on Earth, at any time. It also lets you see galaxies, nebulas, shooting stars (Mac version only), and the Milky Way.
- http://pages.infinit.net/trottier/astronomica.html