Moon calendar: shows moon's phase, signs and relatives plant's part
An application for eclipse chasers, by an eclipse chaser.
more calendar conversions, epochs, JDN, moon, +
C++ library for very easy operating with TLE data sets and files.
Fortran library to compute positions of celestial bodies
Astronomical Database
Virtual Planetarium and other Astronomical Calculation Routines
ProStack - a platform for image processing and analysis
Calculate Astronomical Data
Open Source Astronomy Tools