WorldWide Telescope - Turn your computer into a virtual telescope. Microsoft's WorldWide Telescope brings together imagery from the best ground and space-based telescopes for a seamless exploration of the universe. Also offers guided tours of the sky by astronomers and educators.
Google Earth: Sky - Information about Google Earth's Sky feature, which allows users to zoom in to distant galaxies and nebulae and view constellations and the movements of the planets.
Mars24 - Cross-platform Java programme and browser applet which displays a Mars "sunclock", a graphical representation of Mars showing the current sun- and night-sides of Mars.
Sky View Cafe 3.0 - Java applet that lets you use your web browser to see many types of astronomical information, in both graphical and numerical form.
STD Aurora Monitor - Software for monitoring auroral activity and space weather that allows user to stay informed about conditions via their computer, cell phone, or pager.
Ultimate Messier Object Log, The - Freeware database that contains relevant information for all 110 Messier Objects and various layouts to assist amateur astronomers in documenting their search for deep sky objects.
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- Turn your computer into a virtual telescope. Microsoft's WorldWide Telescope brings together imagery from the best ground and space-based telescopes for a seamless exploration of the universe. Also offers guided tours of the sky by astronomers and educators.