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Raúl Alonso Álvarez
{{Infobox software , name = OpenUniverse , screenshot = OU Earth.jpg , logo = OpenUniverse logo.png , caption = OpenUniverse's rendition of the Earth and its user interface , author = Raúl Alonso Álvarez , developer = Raúl Alonso Álvarez, Axel Groll, and Greg Christensen , released = November 1997 , latest_preview_version = 1.0 beta 3 , latest preview date = {{Start date and age, 2000, 06, 05, df=yes , programming language = C++, C , engine = Mesa 3D , operating_system = Windows, Linux, MacOS , replaces = Solar System Simulator (Ssystem) , replaced_by = Celestia (Not actually affiliated with OU, but it superseded it by a long way) , size = 4.5 MB , genre = Educational software, Simulation , license = GPL v2 , website openuniverse.sourceforge.net OpenUniverse is a 3D Solar System simulator created by Raúl Alonso Álvarez. It uses OpenGL 1.1 (implemented through Mesa 3D) to simulate the Solar System in complete 3D, including its planets and their major and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeware
Freeware is software, often proprietary, that is distributed at no monetary cost to the end user. There is no agreed-upon set of rights, license, or EULA that defines ''freeware'' unambiguously; every publisher defines its own rules for the freeware it offers. For instance, modification, redistribution by third parties, and reverse engineering are permitted by some publishers but prohibited by others. Unlike with free and open-source software, which are also often distributed free of charge, the source code for freeware is typically not made available. Freeware may be intended to benefit its producer by, for example, encouraging sales of a more capable version, as in the freemium and shareware business models. History The term ''freeware'' was coined in 1982 by Andrew Fluegelman, who wanted to sell PC-Talk, the communications application he had created, outside of commercial distribution channels. Fluegelman distributed the program via the same process as ''shareware''. As s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KStars
KStars is a free and open-source planetarium program built using the KDE Frameworks. It is available for Linux, BSD, macOS, and Microsoft Windows. A light version of KStars is available for Android devices. It provides an accurate graphical representation of the night sky, from any location on Earth, at any date and time. The display includes up to 100 million stars (with additional addons), 13,000 deep sky objects, constellations from different cultures, all 8 planets, the Sun and Moon, and thousands of comets, asteroids, satellites, and supernovae. It has features to appeal to users of all levels, from informative hypertext articles about astronomy, to robust control of telescopes and CCD cameras, and logging of observations of specific objects. KStars supports adjustable simulation speeds in order to view phenomena that happen over long timescales. For astronomical calculations, Astrocalculator can be used to predict conjunctions, lunar eclipses, and perform many common astro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stellarium (software)
Stellarium is a free and open-source planetarium, licensed under the terms of the GNU General Public License version 2 or any later version, available for Linux, Windows, and macOS. A port of Stellarium called Stellarium Mobile is available for Android and iOS. These have a limited functionality, lacking some features of the desktop version. All versions use OpenGL to render a realistic projection of the night sky in real time. Stellarium was featured on SourceForge in May 2006 as ''Project of the Month''. History In 2006, Stellarium 0.7.1 won a gold award in the Education category of the Les Trophées du Libre free software competition. A modified version of Stellarium has been used by the MeerKAT project as a virtual sky display showing where the antennae of the radio telescope are pointed. In December 2011, Stellarium was added as one of the "featured applications" in the Ubuntu Software Center. Planetarium dome projection The fisheye and spherical mirror distortio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbiter (simulator)
''Orbiter'' is a space flight simulator program developed to simulate spaceflight using realistic Newtonian physics. The simulator was released on 27 November 2000; the latest edition, labeled "Orbiter 2024", was released on 31 December 2024.https://www.orbiter-forum.com/threads/orbiter-2024-release.42062/ On 27 July 2021, its developer, Martin Schweiger, announced to the community that ''Orbiter'' is being published under open source MIT License. ''Orbiter'' was developed by Martin Schweiger, a senior research fellow in the computer science department at University College London, who felt that space flight simulators at the time were lacking in realistic physics-based flight models, and decided to write a simulator that made learning physics concepts enjoyable. It has been used as a teaching aid in classrooms, and a community of add-on developers have created a multitude of add-ons to allow users to fly assorted real and fictional spacecraft and add new planets or planetary sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceEngine
SpaceEngine is an interactive 3D planetarium and astronomy software initially developed by Russian astronomer and programmer Vladimir Romanyuk. Development is now continued by Cosmographic Software, an American company founded by Romanyuk and the SpaceEngine Team in February 2022, based in Connecticut. SpaceEngine creates a 1:1 scale three-dimensional planetarium representing the entire observable universe, combining real astronomical data with scientifically accurate procedural generation algorithms. Users can travel through space in any direction or at any speed and can move forwards or backwards in time. SpaceEngine is currently in Software release life cycle#Beta, beta status. Up to version 0.9.8.0E, released in August 2017, it was available as freeware for Microsoft Windows. Version 0.990 beta, the first paid edition, was released on Steam (service), Steam in June 2019. The program fully supports VR headsets. Properties of objects, such as temperature, mass, radius, and spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley ( BSD), Microsoft (Xenix), Sun Microsystems ( SunOS/ Solaris), HP/ HPE ( HP-UX), and IBM ( AIX). The early versions of Unix—which are retrospectively referred to as " Research Unix"—ran on computers such as the PDP-11 and VAX; Unix was commonly used on minicomputers and mainframes from the 1970s onwards. It distinguished itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language (in 1973), which allows U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows 2000
Windows 2000 is a major release of the Windows NT operating system developed by Microsoft, targeting the server and business markets. It is the direct successor to Windows NT 4.0, and was Software release life cycle#Release to manufacturing (RTM), released to manufacturing on December 15, 1999, and then to retail on February 17, 2000 for all versions, with Windows 2000 Datacenter Server being released to retail on September 26, 2000. Windows 2000 introduces NTFS 3.0, Encrypting File System, and basic and dynamic disk storage. Support for people with disabilities is improved over Windows NT 4.0 with a number of new Assistive technology, assistive technologies, and Microsoft increased support for different languages and Locale (computer software), locale information. The Windows 2000 Server family has additional features, most notably the introduction of Active Directory, which in the years following became a widely used directory service in business environments. Although not pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
