Ephemeris

Alcyone Ephemeris is an accurate and fast astronomial ephemeris calculator covering the period 3000 BC to AD 3500. It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, and planets in ecliptical, equatorial, and horizontal coordinates, with optional... Platforms: Windows

Landscape photographers typically wish to plan their shoots around the times of sunset/sunrise or twilight, or alternatively when the moon is in a particular place in a particular phase. While times of sunrise etc. are readily available on various sites on the internet (direction of sunrise etc.... Platforms: Mac

SkyORB is more than a simple star map, it's a collection of 6 tools including a 3D star map, 3D planetarium, ephemeris, search engine, sun clock and more. Platforms: Windows, Mac, iPhone, iPod

JStars is an astronomical ephemeris program written in java. Platforms: Windows, Mac, Linux

SolarJ is a library of ephemeris routines, plotting routines, and applications for displaying features visible on the sun and planets in the solar system. Platforms: Windows, Mac, Linux

Java library to calculate heliocentric and geocentric planetary positions. Two types of calculations are supported: a 'fast' version which has an accuracy of about 1 arc second and a 'full' version that implements the full VSOP87 theory. Platforms: Mac

Nova is a free Integrated Observational Environment for amatuer astronomers. It will combine ephemeris functionality with the capability to control telescopes and CCD cameras. Platforms: *nix

JPL Planetary and Lunar Ephemeris DE423 for the jplephem package. This is the most recent short-period ephemeris published by the Jet Propulsion Laboratory. It achieves especially high accuracy for Mercury and Venus since it was prepared for the MESSENGER mission, and should be able to predict... Platforms: *nix

"2002 This Months Sky from Visual Astrology" Watch planets change to glyphs and revolve around the earth month by month for all of 2002. Accurate ephemeris based chart with transit highlights and voiceover horoscopes. Runs full-screen with zoom and month choices. Optional glyph guide. EXE zip... Platforms: Windows

Cenon project is a graphical tool of a special kind. Build upon a modular graphical core, Cenon offers a wide variety of possibilities and applications. The best of all, Cenon is free software, available with full source codes, and at home on many computer platforms. Cenon has been developed... Platforms: *nix

Cenon Astro is a powerful Astrology Software based upon our graphics application Cenon. This makes Cenon Astro able to do full editing of Chart Masks plus all generated Output. Cenon Astro has many unique features.Key Features:Event charts, birth charts, Composite ChartsAstro geographical... Platforms: Mac

Software does planetary calculations in Tropical or Sidereal zodiac and seven house systems for 8,000 years. Includes Yellow Book Atlas with coordinates and time zone histories back to WW II for 250 countries and 9,000 cities. Future time zone changes can be automatically incorporated through a... Platforms: Windows

GEOPoint is an easy to use satellite antenna pointing calculator, for geostationary communications satellites. It calculates the azimuth and elevation pointing angles from a given location on the earth towards a specified geostationary satellite. The program also calculates polarisation tilt... Platforms: Windows

PsyPlan open-source astrology publisher. Popular personal appointment book planner, diary, calendar, daily horoscope. PHP, AJAX, for web browser on Internet or desktop. Ephemeris calculation engine, interpretations, complete system. Hardware independent. Platforms: Windows, Mac, Linux

GPSTk project provides you an open source library for the satellite navigation management. The GPSTk library provides the base functionality for the GPSTk applications and for a number of other independent projects. There are several categories of functions in the GPSTk library: - GPS time.... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

PsyPlan is an open-source astrology publisher. It provides popular personal appointment book planner, diary, calendar, daily horoscope. It comes as PHP, AJAX script for web browser on Internet or desktop. Features - Variety of reports, ephemeris, transits, charts, planners - Includes succinct... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

In the past several years compact radio navigation receivers have proliferated in the civilian market place, generally under the name of GPS or Global Positioning System. Appearing as handheld units or built into cars, mobile phones, and airplanes, these commercial applications originated from a... Platforms: Matlab