Almanac
Almanac gives you the capability to determine the times of rising, setting, and meridian transit for the sun, the moon, and the planets. It also enables you to calculate the beginning and ending of astronomical, nautical, and civil twilight. The results of the calculations are formatted and... Lunar parallax changes the perceived altitude of the moon because the observer is not at the center of the earth. ... Parallax makes that the moon appears lower in the sky. ... Parallax for the Sun and planets is small enought to be ignored for this application.
http://home.att.net/~srschmitt/ALMNAC10.zip - 587Kb - Download - Screenshot

Apollo Mission
The Apollo Mission Screensaver shows inspiring images from the Apollo 11 moon mission. Witness the awesome vista of the Earth-rise above the moon's horizon. Share the views of the landing site, the Eagle lander, and the American flag that were enjoyed by the first men to walk on the moon. ... Includes 29 images. ... Ponder the incredible feat accomplished by these daring men and the many people who supported them.
http://www.soft2d.com/graphics_&_m...eensavers/files/apollo30trial.exe - 2Mb - Download - Screenshot

Anidragon
Anidragons are virtual pet dragons living as evolving digital creatures in a 3D animated screensaver with day and night cycles, varying weather patterns, exotic wildlife, and panoramic fantasy landscapes. They explore, hunt, eat, play, sleep, and grow to adulthood. ... Events such as two moons rising against a gaseous nebula unfold like time-lapse photography. ... It includes a full functioning version of The Atoll of the Tower Moon dracosystem plus one infant herbivorous Western Blue Spike Tail Anidragon (Dracos ignis caeruleus.
http://www.thedragonkeeper.com/DBY/AniGadget.exe - 42b - Download - Screenshot

Soothing Sunsetsriss
IWatch as the moon and the stars are lit up in the evening sky making it rich with warm, soothing colors. This 3D rendered screensaver, with rippling water effects, is captivating to watch and will remind you of warm summer nights. The full version includes 3 sunset scenes and additional... The sun will disappear, the sky will cool off, and the moon will rise. ... Special features also include captivating, rippling water effects that will leave you mesmerized. ... The classical style music and sound effects exude peace and relaxation.
http://ftp.rissnet.com/screensavers/ssunsw10.exe - 3Mb - Download - Screenshot

Soothing Sunsets
Watch as the moon and the stars are lit up in the evening sky making it rich with warm, soothing colors. This 3D rendered screensaver, with rippling water effects, is captivating to watch and will remind you of warm summer nights. The full version includes 3 sunset scenes and additional animations. ... The sun will disappear, the sky will cool off, and the moon will rise. ... Special features also include captivating, rippling water effects that will leave you mesmerized. ... The classical style music and sound effects exude peace and relaxation.
http://www.soft2d.com/graphics_&_m...ers/files/ssunsw_esellerate10.exe - 175Kb - Download - Screenshot

Click Clock
Click Clock is a clock, calendar, weather, and astronomy program. It shows your local temperature in the tray. It also shows local weather, animated weather radar, animated satellite images, date and time of sunrise, sunset, moonrise, moonset, equinoxes & solstices, moon phases, eclipses, meteor... It also has links to maps, aerial photos, topographic maps, dictionary, thesaurus, images of the moon, meteor info, and a calculator. ... The images of the moon can be animated to show the changing phases.
http://www.elegantpie.com/clickclock-setup.exe - 6Mb - Download - Screenshot

Calendar Mine
Calendar Mine is the only calendar that you need, providing accurate date information starting in 1583 up until year 2500. It is an attractive, perpetual, multicultural, personal desktop calendar. Calendar Mine brings the beauty of a wall calendar and the availability of a desktop blotter to... Date and time calculations include sunrise/set, moon rise/set, moon phases, Islamic prayer times, and best fish and game times. ... All date and time calculations are specific to the user's location and are accurate anywhere on the globe.
http://www.Calendarmine.com/Catalog/CalMineSW/CalMin20.exe - 8Mb - Download - Screenshot

Free Sea Lighthouses 3D Screensaver
If you love lighthouses, then this is definitely the screensaver for you! Enjoy watching the lighthouses shine their rotating light into the beautiful night time sky. Watch the water quietly lapping up onto the shore. See and hear the cruise ships going in and out of the harbor as the moon... This life-like, one of a kind lighthouse screensaver will surely delight! ... It features three beautifully rendered scenes for you to watch and enjoy! ... See birds gliding in the air and sailboats floating in the water at their docks.
http://www.scenicreflections.com/downloads/sealighthouses.exe - 4Mb - Download - Screenshot

SS Midnight Fire - Animated Desktop Screensaver
Silent and starlit night. How it is wonderful after a difficult, hard working day to find yourself on a marvelous coast, where the fire burns. Whom and when it was lit by? What difference, it? ll burn so long as you will come here, to look as little tongues of the flame dance on an easy wind, to... The stars, the moon and the slice of the sea, and, of course, the fire can tell you about something amazing, is necessary only to look, to not miss that moment, when they begin to speak with you and among themselves.
http://www.elefun-desktops.com/try/ss_Midnight_Fire.exe - 2Mb - Download - Screenshot

Dynamic Biorhythms
Dynamic Biorhythms is an advanced multilingual tool for the analysis, forecast and comparison of biorhythms cycles of any person. Besides, the software will provide you with a plenty of additional information such as: Moon phase graphics for each date with the Lunar day descriptions; a Zodiac... Sun Rise and Set Times, Moon Rise and Set Times. ... Dynamic Biorhythms has a rich set of behavior / appearance options, you can easily adjust any one them to your needs and taste. ... For instance: biorhythms state report of any number of persons for any period of time (up to 10 years) directly in...
http://www.greenline-soft.com/dynbio.zip - 2Mb - Download - Screenshot