C88 - an informational tool for amateur astronomers -- C88 gives detailed information about the celestial sphere objects, visible with naked eyes & for the use of an eyepiece of a modest amateur telescope to observe deep sky objects. Visit

PyEphem -- [open source - multiplatform] A module for performing astronomical computations using the Python scripting language. Visit

Calendar software -- Windows program which creates sundials & calendars, see the dates & names of the year's moons, and calculate Easter. Visit

LunarPhase -- [commercial, demo available - Win95/98/NT] A comprehensive tool for displaying a variety of information on the Moon & aspects of its behaviour. Visit

GeoAstro Applet Collection -- [commercial & freeware - multiplatform] Interactive Java applets display the position, daily & annual path of the sun & the moon, for any time & location. Visit

Deepsky 99 - Software for Observers -- [shareware - Win95/98/NT] Deepsky 99 solves an important need for amateur & professional observers. The software allows the user to plan a productive observing session & record what was observed rapidly & easily. Visit

Moon Tool -- [Windows] A desktop application that displays the times of the various phases of the moon & a picture of the current phase of the moon. Visit

Multiyear Interactive Computer Almanac -- [commercial - DOS, Macintosh] A software system that gives high-precision astronomical data in tabular form for a wide variety of objects; it calculates much of the information tabulated in the benchmark annual publication, The Astronomical Almanac, but it goes beyond traditional almanacs by enabling you to calculate data for specified locations at specified times within a fifteen year interval (1990-2005). Visit

Moonclock -- [shareware - MacOS] Real-time graphical representation of the lunar visual aspect for any time/date/location. Elongation, PA bright limb, RA, DEC, percent illuminated, alt/az, heliocentric lat/long, distance, and radius. Visit

Epoch_2000 Temporal Epoch Calculator -- Excel spreadsheet calculates temporal variation in astronomic constants, obliquity of the ecliptic, & illumination angles at any specified latitude. You need only input a date or the latitude. Visit

SBIG Linux Kernel/Library Module -- This page contains Linux Kernel/Library Module for SBIG CCD Cameras Visit

Starchart - Star mapping software -- [opensource - POSIX] There is a sky. There're things in the sky. This program draws maps of things in the sky. Visit

STD Aurora Monitor Software -- [commercial - Win95/98/NT/2000] Advanced auroral activity monitoring software. Visit

JPL Planetary & Lunar Ephemerides -- [commercial - multiplatform] This CD contains three Jet Propulsion Laboratory Planetary & Lunar Ephemerides along with a toolbox of FORTRAN subroutines that allow the user to obtain the coordinates of the Sun, Moon, & nine major planets. Visit

NGCView -- [commercial, demo available - Win95/98/NT] Astronomical Observation Suite - Astronomical observation & logging software. Visit

Automated Variable Star Observing -- [freeware - Linux] Command-line program to automate reduction of variable star CCD images. Visit

StarTrak -- Freeware for handheld computers to help find & track objects of the night sky. Visit

SkySight -- [commercial, Win/Mac] CCD camera control & image processing, includes SkyChart III. Visit