Simple Focus is a small tool to easy your job in focusing your telescope. Whatever you need to adjust your focus between different eye-pieces or for digital astrophotography, this tool will save you valuable time.
License:Freeware, $0 to buy Size:600 KBLatest Update:2007-02-01
Complete 2011 Nautical Almanac in pdf format. Includes monthly star charts with the planet's positions.
License:Freeware, $0 to buy Size:1.51 MBLatest Update:2011-01-01
Combine multiple sights on different tracks. Data available for 9999BC to 9999AD including a Star Atlas, twilights and eclipses. It will print conventional Nautical Almanac pages while the voyage plan is a sophisticated tool in its own right.
License:Shareware, $32 to buy Size:8.46 MBLatest Update:2010-10-14
SatHunter is a program for calculating the orientation of a satellite antenna. Find TV signal from a satellite.
License:Shareware, $29.95 to buy Size:5.43 MBLatest Update:2010-03-12
Take a Virtual Tour of Mars-3D. 4GB on DVD... Better than books on Mars. Covers 3 years of the MER Spirit Mission. VRPresents hobby software for people interested in astronomy, cosmos, planets, solar system, space flights, stars. Similar to 3D games.
License:Demo, $25.95 to buy Size:21.02 MBLatest Update:2008-05-13
This shows the position of the sun and moon for any place on earth between 1900 and 2049. It can show the sun or moon for any day or the horizon which can be rotated 360 degrees and animated.
License:Shareware, $29 to buy Size:3.21 MBLatest Update:2012-11-01
This utility can convert a gregorian date into julian day format/Modified Julian Day format and vice versa. The Julian Day Format counts the day since the 24th november -4713bc.
License:Freeware, $0 to buy Size:859 KBLatest Update:2005-11-04
Moon Phase Calculator is simple and easy to use tool that allows you to calculate the phase of the Moon for any time in the past or future and to search for the next or previous full moon, new moon or first or last quarter.
License:Shareware, $14.95 to buy Size:269 KBLatest Update:2008-12-13
StarStrider is a software planetarium that utilizes 3D-technology in order to show you not only the planets and satellites of our solar system, but also galaxies, nebulas, and hundreds of thousand of stars - in real-time 3D.
License:Shareware, $25 to buy Size:14.91 MBLatest Update:2012-04-24
CyberSky is an accurate, yet easy-to-use planetarium program that provides an excellent way to learn about astronomy and explore the sky visible in the distant past, the present, and the far-off future.
License:Shareware, $34.95 to buy Size:7.69 MBLatest Update:2011-10-04
A program to search for eclipses (lunar, solar, total, annular and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in five lunar calendars.
License:Shareware, $14.95 to buy Size:1.6 MBLatest Update:2014-03-21
Almanac calculates the equatorial coordinates of the sun, the moon, and the planets. From these it calculates the times of rise, set, and meridian transit for each of these celestial bodies. Additionally, it can calculate the times for twilight
License:Freeware, $0 to buy Size:587 KBLatest Update:2013-06-22