Swiss Ephemeris
Ephemeris birth chart
The Authors
Mailing list and contact
Price list and ordering
Test Page
General Documentation
Programmer's Documentation
Professional License English
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Printable 6000 year ephemeris files
Download Area
Pluto get the boot
IAU press release
Special purpose lists

The Swiss Ephemeris is the high precision ephemeris developed by Astrodienst, based on the NASA JPL ephemeris DE406. This page calls the utility swetest which is a simple test interface to the Swiss Ephemeris.
swetest has a large set of complex options which are mainly used to debug the Swiss Ephemeris module and DLL. Klick here to see the list of optional parameters you can enter.
Start date
(d.m.y) -b		 steps -n Stepsize -s
Planet selection -p
Output format -f
other options
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