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Nightfall 1.38
Nightfall 1.38

Astronomy application for fun, education, and science. Nightfall is an astronomy application for fun, education, and science. It can produce animated views of eclipsing binary stars, calculate synthetic lightcurves and radial velocity curves, and eventually determine the best-fit model for a given set of observational data of an eclipsing binary star system.(for Linux)


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  • Downloads:27
  • Date updated:2009-01-28
  • Version:1.38
Software - Astronomy
Astronomy Slide Show v2.1 -  Astronomy Slide Show is a full screen slide show of 19 amazing photographs (including Comet Hale-Bopp) taken through a telescope. Most of the images were taken with a C8 telescope.The image of Comet Hale-Bopp was captured from the dark skies of Fiddletown, CA, U.S.A. on the morning of March 9, 1997 with a 225mm, f/1.65, 5 1/2"\; Celestron... (for ) (14/0) download
Xephem 3.6.1 -  Astronomy program for UNIX and Linux. Astronomy program for UNIX and Linux. (for Linux) (18/0) download
StarCalc v5.5 -  StarCalc is a professional astronomy, planetarium, and star mapping application. StarCalc lets you display star positions during any time of a given day and observed from any geographic location on Earth. Star positions can be viewed and presented as semi-spherical images of the whole sky or any user-defined sub-area. These images can be... (for Windows) (20/0) download
Distant Suns - SETI@Home Version v1.0 -  Distant Suns - SETI@Home Version is an astronomy application for both casual skywatchers and amateur astronomers. Distant Suns allows you to explore the Solar System, visit Mars, observe the Earth move around its orbit, and view the sky over your location. It contains a database of over 20,000 stars, and can display the sky from almost any date... (for Windows) (15/0) download
Exploring the Universe v1.0 -  Exploring the Universe is an astronomy program for students in grades 6 to 12 that uses images from the Hubble Space Telescope, ground photos and other NASA probes to explain the universe. The program provides insight into four subject areas: solar system, stars, Milky Way, and the universe. In addition, students can learn about the planet... (for ) (13/0) download
Exploring the Sun v2.2 -  Exploring the Sun is an astronomy program for students in grades 6 to 12 that uses NASA images to explore the Sun, and includes basic Sun information, two science experiments and a fun multiple choice test. The first section lets you learn basic information using simple multiple choice questions. The information is made more interesting by using... (for ) (8/0) download
Exploring the Solar System v5.0 -  Exploring the Solar System is an astronomy program for students in grades 3 to 8 that uses questions, math, and images from the Hubble Space Telescope and other NASA probes, to explore our solar system. You are the Principle Investigator (PI) for the Hubble Space Telescope. Your mission is to explore the solar system. You can choose from any of... (for ) (12/0) download
300 Science Quizzes 1.0 -  300 Science Quizzes: 150 Capital city quizzes, 120 Chemistry and Periodic Table quizzes, 20 Astronomy picture-quizzes and 10 questions about the speed of light for middle and high school students. 300 Science Quizzes: 150 Capital city quizzes, 120 Chemistry and Periodic Table quizzes, 20 Astronomy picture-quizzes and 10 questions about the speed... (for Windows) (8/0) download
UTC Clock 1.0.1 -  UTC Clock 1.0.1 displays UTC time. UTC Clock is a simple clock designed to display UTC (GMT, zulu, etc.) time under the menu bar clock. It uses very little resources, screen real estate, and no Dock space. Designed with the hobbyist in mind, it displays the time, date, and provides links to relevant radio and astronomy web sites. UTC Clock is... (for ) (80/1) download
Hallo Northern Sky for Windows 3.1 v1.62b -  Hallo Northern Sky for Windows 3.1 is an astronomy tool which allows you to plot the night sky for any time and location. The program displays all stars to about magnitude 12, as well as all nine planets, the Moon, Sun, and the moons of Mars, Jupiter, Saturn, Uranus, and Neptune. It also shows the phases of the Moon and inner planets, solar and... (for ) (14/0) download
Asynx Planetarium 2.20 -  Asynx Planetarium is a easy to use planetarium program and solar system simulator. It can display the night sky from any location on earth between the year 1760 and 9999 and covers over 10000 stars, the planets, all messier objects, all 88 constellations and the moon with phase. Fast animations: Night sky, geocentric and heliocentric view.... (for Windows) (22/0) download
Sidereal Clock v1.0 -  Lets you keep track of the celestial time. The Sidereal Clock calculates the local mean sidereal time (LMST) based upon the computer's local clock, your time zone, and your west longitude. Astronomy buffs use this type of clock which is based upon "star time". If you used your normal clock and timed when a distant star passed due south... (for Windows) (34/0) download
Adastra Freestar v3.5 -  Adastra Freestar displays a realistic view of the night sky from any place on Earth or point in time. You can easily manipulate your real-time sky display with the center, zoom, unzoom, directional, and panning functions. A single mouse click on any visible object displays a report with information about that object. It also includes a... (for Windows) (8/0) download
Home Planet Full Edition v3.0 -  Home Planet Full Edition is a comprehensive collection of astronomy and satellite-tracking tools. The program allows you to view a map of Earth, displaying day and night regions, location of the Moon and current phase, and position of a selected Earth satellite.Earth maps can be customized and extended by editing a DLL file which provides maps... (for Windows) (8/0) download
Burden of Time Mayan Calendar v2.0 -  Allows you to convert classical Maya long counts into the Western calendar and visa versa. The Maya were the greatest mathematicians of pre-Columbian America. Their calendar counted off the time elapsed since creation in a series of sacred meshed and astronomical cycles. The calendar displays the long count dates in several styles, including... (for Windows) (74/0) download