Alcyone Ephemeris 3.5 is an accurate and fast astronomical ephemeris calculator covering the period 3000 BC to AD 3000.
It calculates heliocentric, geocentric, and topocentric positions of the Sun (Earth), Moon, planets, minor planets, comets and fixed stars in ecliptical, equatorial, and horizontal coordinates (including angular differences between two bodies), with optional corrections for parallax and refraction; rectangular coordinates, velocity, apparent diameter, magnitude, phase, lunar libration, orbital elements, differences for all of these, and more.
In addition Alcyone Ephemeris offers a wealth of functionality: star chart generation, 3D-visualization of heliocentric and planetocentric orbits, plotting ephemeris data, searching for specific values, saving as Excel, HTML, XML or text files to export output to spreadsheets, word processors and web pages, printing, and report generation (PDF, HTML, RTF).
The ephemeris calculation is based upon Steve Moshier's analytical ephemeris using trigonometric expansions for the earth and planets and the lunar ephemeris ELP2000-85 of Chapront-Touzé and Chapront for the moon, both adjusted to Jet Propulsion Laboratory's DE404 (see www.moshier.net). There are further adjustments in Alcyone Ephemeris, some optional, to JPL's more recent DE406, the most accurate long-term ephemeris. Alcyone Ephemeris is fast. With an Athlon XP 2000+ processor, 100 calculations of geocentric longitude, latitude, and distance for the sun, moon, and all planets take about 2 seconds. A comprehensive documentation includes tabular and graphic comparisons of calculations with HORIZONS ephemeris generator. Alcyone Ephemeris is shareware and runs under Windows 98/ME/2000/XP/Vista.

Alcyone Astronomical Tables 1.4 (AAT) is a collection of astronomical data in electronic form. It provides detailed information on various astronomical phenomena (conjunctions with the Sun, planetary conjunctions, oppositions, stations, greatest eleongations, lunar phases, equinoxes and solstices, passages of aphelia and perihelia) covering the period 3000 BC to AD 3000. AAT offers additional functionality as printing, data export (Excel, HTML, ASCII, CSV), table sorting, and time range specification. The calculation is based upon Steve Moshier's analytical ephemeris using trigonometric expansions for the earth and planets and the lunar ephemeris ELP2000-85 of Chapront-Touzé and Chapront for the moon, both adjusted to Jet Propulsion Laboratory's DE404 (see www.moshier.net). Since all data are pre-calculated and saved in a database, all calculations are very fast. AAT can be used as a 'stand-alone program' and/or as an addition to Alcyone Ephemeris. The software runs under Windows ME/2000/XP/Vista.

Planetary, Lunar, and Stellar Visibility (successor to Planet's Visibility 2.0) presents a 3-color diagram that shows when a planet, a star, the moon or the sun is visible during any year from 3000 BC to AD 6000 at any location on the earth. The vertical axis marks the months of the year, the horizontal axis marks the hours of the day. The three colors create a contour map effect and show whether the body is under the horizon (black) and invisible, above the horizon with the sun (light color) and invisible, above the horizon without the sun (shaded color) and so possibly visible. The times of sunrise and sunset and when the sun reaches specified altitudes above or below the horizon can be shown as curves on the diagrams. By moving the mouse over the diagram, the date and time along with the object's altitude, azimuth, and magnitude, or the phase of the moon, are displayed. In addition, Planetary, Lunar, and Stellar Visibility computes and tabulates the dates of visibility phenomena: for planets and stars first and last visibility, acronychal rising and cosmical setting; for the moon first and last visibility, and the tables provide much supplementary information. These phenomena are very useful for historical purposes. Since the computation of visibility phenomena is complex and uncertain, alternate methods are provided and parameters can be altered by the user to find what appear to be the best results. There are also diagrams of solar and lunar eclipses, of the rotation, inclination, illumination, and apparent size of the bodies, and of Jupiter's satellites. The settings for the computations may be saved, the graphics may be saved, pasted into documents, and printed, and the tables for visibility phenomena may be accumulated, edited, printed, and saved as .rtf files or HTML files to be pasted into documents and printed.
Full documentation is provided.
Planetary, Lunar, and Stellar Visibility is freeware and runs under Windows 98, ME, 2000 and XP.

The Bright Star Catalogue contains 9110 entries of all stars brighter than magnitude 6.5 (the naked eye visible stars). It's one of the most widely used star catalogues and provides detailed basic astronomical and astrophysical data. The Bright Star Catalogue Viewer displays the data of the 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991, Yale University Observatory) as distributed by the Astronomical Data Center at NASA Goddard Space Flight Center.
The Bright Star Catalogue Viewer offers different searching options (e.g. search for common star names, Bayer or Flamsteed designation, HR, HD, SAO number) and data sorting.
While the table on the left side shows the results of the current search operation, in the right part detailed information on the currently selected star are displayed. The Notes section provides additional information, organized in 12 categories (C - Colors; D - Double and multiple stars; DYN - Dynamical parallaxes; G - Group membership; M - Miscellaneous; N - Star names; P - Polarization; R - Stellar radii or diameters; RV - Radial and/or rotational velocities; S - Spectra; SB - Spectroscopic binaries; VAR - Variability).
The Bright Star Catalogue Viewer is shareware and runs under Windows ME/2000/XP/Vista. A free trial version (~4 MByte) is available.