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What is Halley?
Halley is a free software for management and working with the regularly updated database of comets, containing Keplerian orbital elements, non-gravitational and physical parameters of the comets and other data. The tasks performed by Halley software, in addition to database management, include calculation of the orbital evolution of small-bodies and visualization of their dynamics, detection of close approaches with the major planets in a given time interval, as well as a number of other tasks.
Halley 0.06 Free download Windows XP, Vista and 7 (2.4 MB)
Regular Updates
Regularly updated database of comets...
Fast Search
Fast search of comets by any element...
High Speed and Precision
High-speed integration of the equations of motion and high-precision calculation of small-bodies orbits...
And more features
Complete database management with possibility of adding your own objects, visualization of small-bodies orbits, calculation of orbital evolution, moments of perihelion passages, close approaches and more...