Deepsky Designed for observers at any level
DVD version includes 410,000 images of deep sky objects CD version includes 10,000 images of deep sky objects What’s Up Wizard shows you what's visible right now Observing Planner helps bring focus to your observing sessions Record your observations in the Logbook or Journal Database includes over 726,000 Galaxies, Nebula, and other objects Image Processing enhancement, conversion, viewing, & printing Interactive star charts
http://www.deepskysoftware.net/ - Details

EasySky
Huge database - PPM with 340,000 stars included - GSC with 15 million stars supported - NGC, Messier with more than 13,000 objects All asteroids (converter for update included) Comets
http://www.easysky.de/eng/ - Details

ASTRONOMIC CLOCK
ASTRONOMIC CLOCK provides a host of data on the positions of the Sun, Moon, and planets seen from anywhere on Earth. Information, plotted on an altazimuth chart and accompanying tables, includes local sunrise and sunset times, solar disk size, Earth-Sun distance, Moon phases, equatorial coordinates, a planetary ephemeris, and an eclipse locator. The positions of the planets may be changed in steps of a second, minute, hour, day, week, and month, or follow the system clock.
http://www.dutch.nl/rcott/astronom.htm - Details

Observation Planning & Logging Software for Astronomers
Deep-Sky Planner 4 astronomy planning software for Windows provides the powerful, accurate tools you need to make your time at the telescope more efficient and enjoyable. Whether you observe planets, comets, minor planets (asteroids), carbon stars, doubles, variables or deep-sky objects, Deep-Sky Planner 4 helps you get more from your visual and photographic observing time. Use it indoors to prepare or at the telescope while observing.
http://knightware.biz/dsp/ - Details

Eagle Lander 3D
EL3D is the first simulation to accurately depict the Apollo landings on the moon. There have been many 'arcade' style simulations with stick figures in two dimensions, but never has there been a real attempt at a proper 3D simulation. I created EL3D to fulfill my own dream of flying a LM and actually 'seeing' the landing spots of the historic missions. I waited years for a proper simulation to come to fruition and then decided that if it was going to happen it might as well be me to do it. I wanted a simulation that was historically accurate and modeled the LM as closely as possible. This includes the visuals, the 3D models, the instruments, the flight dynamics, and as many 'details' as I could include into the package.
http://eaglelander3d.com/ - Details

Starry Night®
Bring the Moon, the stars, the galaxy – the night sky panorama – to your computer desktop
http://www.starrynightstore.com/ - Details

PrintPunk
Automatically fit web pages to the printed page from Internet Explorer!
http://www.printpunk.com/ - Details

SkyMap
SSkyMap Pro is equally suited for use by both the casual "star gazer" and the serious amateur or professional astronomer, although its feature list will appeal especially to the more "advanced" user.
http://www.skymap.com/ - Details

Desktop Lunar Calendar
Desktop Lunar Calendar is simple, fun and easy to use calendar. It is accurate anywhere in the world. It has two parts: image of the current moon’s phase and compact, harmonic moon calendar. The 4 main quarter phases -- Full, New, First Quarter, and Last Quarter -- are marked on the calendar. You can change color of the calendar, size of the moon’s image, time’s format and more. You like it, download now!
http://www.moonphasesoftware.com/moon_calendar/ - Details

Planetarium and Telescope Control Program
A Planetarium and Telescope Control Program for Windows 95, Windows 98, Windows Me, Windows NT4, Windows 2000, Windows XP, or Windows Vista
http://www.nova-astro.com/ - Details

Kagayaki-IV
Kagayaki-IV has neither the toolbar nor a lot of icons.
http://www.now21.com/kagayaki/ - Details

Planetarium
Bring the universe to life on your own desktop! Planetarium Gold enables you to control the vast world of outer space all in the comfort of your own home. Finally see the heavens as they were meant to be seen with Planetarium. From any virtual location in the world, see the sky as it appears at any times of day, or even as it will appear in the future!
http://www.planetariumgold.com/ - Details

NGCView
Plan, Plot, Chart and Log your observations using over 200,000 objects and 70 Million stars! 70 Million Stars -- That's more than triple the Hubble Guide Star Catalog * 200,000 + Deep Sky objects * All NGC, IC, Messier and PGC objects * All Planets and Moon displayed in real time * 38 Filters & 56 Sorting options *
http://www.rainman-soft.com/ - Details

AstroViewer
Find planets and constellations in the night sky AstroViewer is an interactive sky map that helps you to find your way in the night sky quickly and easily. Just set your location and time and start exploring the starry sky, find planets and constellations, and much more. Try the free interactive sky map right now! Or download the sky map and install it on your computer.
http://www.astroviewer.com/ - Details

EarthDesk
The World on Your Desktop
http://www.xericdesign.com/earthdesk.php - Details

Distant Suns
Distant Suns is one of the premier desktop astronomy programs
http://www.distantsuns.com/ - Details