Ĭelestia simulates the appearance of atmospheres on planets and moons, planetshine on orbiting satellites, and miscellaneous planetary details such as sunrise and sunset. The time simulated by Celestia can be set to any time 2 billion years forward or backward from the present, although planetary orbits are only accurate within a few thousand years of the present day, and date arithmetic overflows at the year 5,874,774. Light time delay is an optional function. Surface features on other celestial objects such as craters, basins and canyons can be shown as well.Ĭelestia allows users to navigate at different speeds, and allow users to orbit stars, planets, moons, and other space objects, track space objects such as spacecraft, asteroids, and comets as they fly by, or travel to and/or fly through galaxies.
The names and locations of Earth features such as continents, mountains, seas, oceans, and cities can also be displayed. Using the installed catalogues, the names of celestial objects can be displayed, including artificial satellites. Celestia uses the VSOP87 theory of planetary orbits to provide a solar and lunar eclipse finder and to display the orbital paths of planets (including extrasolar planets), dwarf planets, moons, asteroids, comets, artificial satellites, and spacecraft. Here is Jupiter with different textures for different yearsĬelestia versions 1.6.3 and under display the Hipparcos Catalogue (HIP) of 118,322 stars and a compiled catalogue of galaxies, while version 1.7.0 includes stars from the Tycho-2 Catalogue alongside the Hipparcos stars, with some data from Gaia, increasing the star count to over 2 million. Functions Typical DSO survey in Celestia Celestia has a function which allows for multiple textures on an object at once that can be changed at any time. Between 2001 and May 2017, the former central distribution site SourceForge counted approximately 12 million downloads.
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Ĭelestia is available for download from its main website, celestiaproject.space, but it can be obtained from a large multitude of free software websites as well. Celestia was ported to mobile devices in 2020, and it continues to receive updates and experimental beta versions. As of 2023, beta testing builds of version 1.7.0 are available, as well as the bugfix releases 1.6.2 and 1.6.3. In late 2016, the official Celestia forums were restored, and development restarted. The original creator of Celestia, Chris Laurel, created Fifth Star Labs after Celestia's development stopped, and started work on the widely-used iOS app Sky Guide. However, since the Celestial Matters forums went down in 2020, there have been no updates on the progress of the program. Since then, some of its development team went to work on celestia.Sci, a cosmological visualizer featuring more realistic rendering of galaxies and planets, gravitational lensing, and many other scientifically accurate enhancements. It is free and open source software released under the GNU General Public License.Ĭelestia's development stopped in 2013, with the final release in 2011. Ĭelestia is available for AmigaOS 4, Linux, macOS, Microsoft Windows, iOS, and Android.
Celestia can display objects of various scales using OpenGL. Celestia also doubles as a planetarium, but the user is not restricted to the Earth's surface, like in other planetarium software such as Stellarium. The program allows users to virtually travel through the universe and explore celestial objects that have been catalogued. AmigaOS 4, BSD, Linux, macOS, Microsoft Windows, iOS, AndroidĬelestia is a real-time 3D astronomy software program that was created in 2001 by Chris Laurel.
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