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