Stellarium provides you with accurate data about the night sky, which can be used by professional and amateur astronomers alike. Basically it's a planetarium for your computer. The application shows a realistic sky in 3D; the same as what you'd see with a telescope.
Key features include:
- Default catalog of over 600,000 stars (extra catalogs with more than 210 million stars).
- Asterisms and illustrations of the constellations.
- Constellations for 20+ different cultures.
- Images of nebulae (full Messier catalog).
- The planets and their satellites.
- Very realistic atmosphere, sunrise and sunset.
- Realistic Milky Way.
Stellarium has a great looking interface that can be accessed by all levels of user. It comes with a powerful zoom feature, time control, fish-eye projection for planetarium domes, extensive keyboard control and telescope control. Stellarium also comes with plugin control, so you can add functions like artificial satellites, ocular simulation, and telescope configuration. You can also add to your database, new solar system objects from online resources.
Added two notations for unit of measurement of surface brightness.
Added improvement for hide/unhide lines and grids in Oculars plugin.
Added few moons of Saturn (Phoebe, Janus, Epimetheus, Helene, Telesto, Calypso, Atlas, Prometheus, Pandora, Pan) with classic elliptical orbits.
Added few moons of Uranus (Cordelia, Cressida, Desdemona, Juliet, Ophelia) with classic elliptical orbits.
Added 2 moons of Pluto (Kerberos and Styx) with classic elliptical orbits.
Added code to avoid conflicts for names of asteroids and moons.
Added support of IAU moon numbers.
Added angular size into AstroCalc/Positions tool.
Added option to allow users to choose output formatting of coordinates of objects.
Added optional debug info for HDPI devices.
Added optional calculations of resolution limits for Oculars plugin.
Added new data from IAU Catalog of Star Names.
Added support download zip archives with TLE data to Satellites plugin.
Added link to the Mike McCants' classified TLE data into the default list of TLE sources.
Added link to AMSAT TLE data into the default list of TLE sources.
Added support 'The Strasbourg-ESO Catalogue of Galactic Planetary Nebulae' (Acker+, 1992) [DSO catalog version 3.2].
Added support 'A catalogue of Galactic supernova remnants' (Green, 2014) [DSO catalog version 3.2].
Added support 'A Catalog of Rich Clusters of Galaxies' (Abell+, 1989) [DSO catalog version 3.2].
Added export the predictions of Iridium flares.
Added meta information about version and edition into file of Stellarium DSO Catalog to avoid potential crash of Stellarium in the future (validation the version of catalog before loading).
Added support of extra physical data for asteroids.
Added support of outlines for DSO.
Added new time step: saros.
Added new time step: 7 sidereal days.
Added more checks to the network connections.
Added support of comments for constellations_boundaries.dat file.
Added support for small asterisms with lines by the equatorial coordinates.
Added support for ray helpers.
Added new feature (crossed lines and output string near mouse cursor) to the Pointer Coordinates plugin.
Added missing cross-id data.
Added support an images within description of landscapes.
Added support Visual Studio 2017 in StelLogger.
Added tool to save list of objects in AstroCalc/WUT tool.
Added tool to save celestial positions of objects in AstroCalc/Positions tool.
Added temporary solution for bug 1498616.
Fixed wrong rendering Neptune and Uranus.
Fixed Vector3 compilation error in unit tests.
Fixed a conflict around landscape autoselection.
Fixed HMS formatting.
Fixed generating ISS script.
Fixed tooltips for AstroCalc/Positions tool.
Fixed dark nebulae parameters for AstroCalc/Positions tool.
Fixed tool for saving options.
Fixed crash when we on the spaceship.
Fixed Solar system class to avoid conflicts and undefined behaviour.
Fixed orientation angle and its data rendering.
Fixed wrong shadows on Jupiter's moons (Added special case for Jupiter's moons when they are in the shadow of Jupiter for compute magnitudes from Expl. Suppl. 2013 item).
Fixed work AstroCalc/AltVsTime tool for artificial satellites (a bit slow solution though).
Fixed search by lists of DSO.
Fixed translation switch issue for AstroCalc/Graphs tool.
Fixed trackpad behaviour on macOS though workaround.
Fixed couple stupid bugs in InnoSetup script.
Fixed morphology for SNR.
Fixed issue in parsing of date format in AstroCalc/Phenomena tool.
Fixed link for fileStructure.html file in README.
Fixed the calculation for drawing a reticle on a HiDPI display (Oculars plugin).
Fixed default option of units of measure for surface brighness to avoid possible artifacts on the macOS.
Fixed crash when comments is added into constellations_boundaries.dat file.
Fixed behaviour of 'Center on selected object' button.
Fixed impossibility to select a planet after Astronomical Calculations is activated.
Fixed crash with unknown star in asterism.
Fixed cross-ids of 42 bright double stars.
Fixed magnitude computation for Jupiter's satellites.
Fixed crash of Stellarium when answer of freegeoip.net has wrong format (for example this host blocked by firewall or DNS server with HTML answer).
Fixed translations issue in Script Console.
Fixed illumination in Scenery3D plugin: Take eclipseFactor into account.
Fixed potential crash in DSO outlines.
Fixed various issues in ray helpers, asterisms and constellations support.
Updated InfoString feature.
Updated sky brightness during solar eclipse (really, there are only few stars visible.).
Updated Maori sky culture.
Updated list of names of deep-sky objects.
Updated list of asterisms.
Updated selection behaviour in Oculars plugin (avoid selection of objects outside ocular circle in eyepiece mode).
Updated behaviour of methods getEnglishName() and getNameI18n() for minor bodies.
Updated behaviour of planetarium for support a new format of asteroid names.
Updated behaviour of filters for DSO catalogs.
Updated Solar System Editor plugin (support new format of asteroid names).
Updated RTS2 telecope driver in Telescope Control plugin.
Updated API docs.
Updated limit of magnitude for Oculars plugin (Improvements).
Updated AstroCalc/WUT tool.
Updated AstroCalc/Ephemeris tool.
Updated rules for storing default settings.
Updated rules for computation visibility of DSO hints.
Updated default values for material fade-in/fade-out times.
Updated stellarium.appdata.xml file.
Updated tab rules in the GUI.
Reduce warnings to one when loading OBJ with non-default w texture/vertex coordinates.