AstroGrav

Category: Miscellaneous    

Date Listed/Updated: 2023-04-05 01:17:31

File size: 24959 KB

OS: Win2000, Win7 x32, Win7 x64, WinVista, WinVista x64, WinXP  License: freeware  Price($): 0

Author/Publisher name: Russell Calvert

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Description:

AstroGrav is a full-featured, high precision solar system simulator that calculates the gravitational interactions between all astronomical bodies, so that the motions of asteroids and comets are simulated much more accurately than with planetarium applications. The effects of general relativity and radiation pressure can be taken into account, and superb interactive 3D viewing allows you to easily rotate and zoom your view while the solar system evolves. The AstroGrav software has a huge range of features and viewing options, including views from space or any object, planetarium-style views from any location on Earth, multiple views animated simultaneously, dynamically calculated orbits and trajectories, comprehensive tabular data, and simulation time steps from a fraction of a second to thousands of years. Constellations and over 100,000 background stars are included, with comprehensive data for every star. Several different celestial coordinate grids and a wide range of physical units are available, and editing facilities allow you to create new objects manually, or import from hundreds of thousands of asteroids and comets. Because it calculates the motions of bodies from their gravitational interactions, AstroGrav is not restricted to just the solar system. Any situation in which gravity is the only significant force can be simulated, and the illustrative sample files that are included with AstroGrav include many examples such as exoplanet systems, protoplanets that evolve into planetary systems, rubble piles and their interactions with massive bodies, complex star systems, and even projectiles and bouncing balls. AstroGrav is ideal for astronomers, astrophysicists, researchers, teachers, educationalists, and students, and comes complete with a tutorial and full documentation.

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Tags: gravity  astronomy  astro  simulation  solar system  gravitation  newton  3d  orbit  educational  ma 

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Software Review: AstroGrav Review

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ASTROGRAV 4.4 RELEASED FOR WINDOWS AND MAC ASTROGRAV ADDS MANY NEW FEATURES AND IMPROVEMENTS TO ITS PRECISION SOLAR SYSTEM SIMULATOR 6th August 2021 - AstroGrav 4.4 includes major improvements to the evolution algorithm, which greatly improves the accuracy of solar system simulations. There are also new options for searching for particular celestial positions, the drawing of trajectories and histories has been simplified, and many other improvements have been made. Full details are available from: http: www.astrograv.co.uk version-4_4.html EVOLUTION IMPROVEMENTS There are major improvements to the evolution algorithm, which provide many benefits. In particular, the accuracy of solar system simulations is much improved in most situations. IMPROVED SEARCHING It is now possible to search for a particular celestial position on a solar system simulation s view window. This usually is done by specifying the position s right ascension and declination. However, if the view is from somewhere on the Earth s surface, there is also an option to specify the position s azimuth and altitude. TRAJECTORIES AND HISTORIES Trajectories and histories are no longer treated separately, but have been combined into tracks that have characteristics of both. The pairs of commands and buttons that used to handle trajectories and histories are now replaced with single commands and buttons that handle tracks, with a separate configuration command allowing the specification of lines only, labels only , or lines and labels . This provides the same functionality as in earlier versions, but with a simpler, easier to understand user interface. OTHER IMPROVEMENTS The handling of invisible objects has been simplified, and a bug has been fixed that caused the Earth s rotational position to be out by about a minute. The column selectors at the top-left of tables have been modified so that they no longer close automatically when an item is selected, which makes it much easier to make multiple changes to columns at the same time. The Hilda category has been added to the tables that are shown when importing asteroids, and plus ( + ) symbols are now allowed in exponents when editing angles, making it easier to copy and paste data from websites. Many other minor improvements and bug fixes complete this major upgrade. UPGRADE The AstroGrav 4.4 update is free of charge to all AstroGrav 4 license holders. They may download and install the update immediately from: http: www.astrograv.co.uk download.html ABOUT ASTROGRAV ASTRONOMY SOFTWARE AstroGrav Astronomy Software produces astronomical and gravity simulation software for astronomers, researchers, educationalists, and students. For more information, visit the company s website: http: www.astrograv.co.uk Press Contact: Russell Calvert AstroGrav Astronomy Software russcalvert@astrograv.co.uk

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AstroGrav, AstroGrav for Mac,