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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 Software
CyberSky 4.0.3 -  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. CyberSky can display and print attractive, highly-customizable maps of the sky as seen from your home, your favorite vacation spot, or any other... (for Windows) (83/0) download
AstroGrav (Mac) 1.3.4 -  Astronomy software to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, while watching how it evolves. AstroGrav is an astronomy software program that allows you to simulate how astronomical objects move... (for ) (7/0) download
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
Planet Guide v1.5 -  Planet Guide is an astronomy tool that provides a brief amount of information for all the planets. For each planet you can look up a variety of information including atmospheric components, average distance from the Sun, diameter, escape velocity, mass, maximum surface temperature, mean density, orbit eccentricity, orbit inclination, revolution... (for Windows) (13/2) download
Starry Night Backyard v3.0.4 -  Starry Night Backyard is an easy-to-use astronomy simulation software which allows you to learn how to identify planets, stars, and constellations. You can gaze at the heavens from your own backyard or any other location on Earth, explore the solar system, follow the trajectory of a comet, and access the view from the International Space... (for Windows) (81/0) download
Xephem 3.6.1 -  Astronomy program for UNIX and Linux. Astronomy program for UNIX and Linux. (for Linux) (18/0) download
Windows Dictionary of Astronomy v2nd Edition -  Windows Dictionary of Astronomy is a comprehensive astronomical dictionary including over 2,000 terms plus educational articles and tables. The WDA is split into three sections: the Dictionary, the Table Viewer, and the Read File Viewer and Further Reading section.In the Dictionary section you can browse all the terms or search for a particular... (for ) (8/0) download
AstroGrav (Windows) 1.4.3 -  AstroGrav is an astronomy software program that allows you to simulate how astronomical objects move and interact under the force of gravity. It features superb interactive 3D graphics which allow you to move around within a many-body astronomical system, while watching how it evolves with the passage of time. A wide variety of sample files are... (for Windows) (30/0) 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
EasySky 3.01.15 -  Astronomy software, shows you the complete night sky (340,000 stars) and our solar system in a 3D orrery view with the planets, asteroids, and comets from any place at any time. Many animation options, printing. (for Windows) (5/0) download
Astronomy Clock 2 for Windows 95 v2.02 -  Astronomy Clock 2 for Windows 95 displays local mean time, universal time, local sidereal time, and Greenwich sidereal time for your location. Simply enter your location name, longitude, and time zone. Features optional hourly chime, always-on-top option, and more. (for Windows) (25/0) download
Sky3D v2.0 -  Sky3D is an astronomy program. It offers realistic views of the entire sky with three interactive and three-dimensional view modes: Sky View, Local Space, and Star System.The Sky View mode provides a general view of the sky, as you would see it at any desired position, and from any location on the Galaxy.Local Space is intended as a... (for ) (6/0) 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
CyberSky (32-bit) v3.2 -  CyberSky (32-bit) transforms your computer screen into a planetarium, allowing you to learn about astronomy by exploring the sky in the past, present, and future. It displays accurate charts of the sky as seen from any location on Earth. You can view the sky from any of the nearly 1,200 locations in CyberSky's location database, or from... (for Windows) (19/0) 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
Coeli - Stella 2000 6.0.3.1 -  Complete astronomy suite comprising a full-featured planetarium, observing log and list builder, Coeli Time Line, Live Orbits (orrery), location browser, Sky Quiz, and sophisticated searches embracing planets, comets, asteroids, DSOs, and up to 300,000 stars. Planetarium effects include scintillation, extinction, refraction, and precession... (for Windows) (23/0) download
Orbit Xplorer 2.0 -  Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 premade simulations with activities page in html-format. Educational orbit and gravitation simulator for high school, college and beginning university physics and... (for Windows) (10/0) download