It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars, or a telescope. Stellarium can display more that 600000 stars but extra catalogs allow to display Tool to simulate astronomical events in the past, present (in real time orįast pacing) or in the future, specially educators and science historians among others.Stellarium 64-bit is a free open source planetarium for your computer. Up to 177 million stars up to magnitude ~18. If needed you can download parameters of allĮxisting comets and asteroids (via F2, Plugins, Solar System Editor,Ĭonfure.) but have at your disposal several gigabytes of free diskĬan simulate the sky in the past or in the future but with limitations.Īccording to the Stellarium User Guide 2017, AppendixĮ, thanks to VSOP87 analytical ephemeris model (via F2) that matches Way, and a very realistic atmosphere, sunrise and sunset glows, and of course NGC and IC catalogs), major galaxies including clusters of galaxies, the Milky Than 20 different cultures, pictures of nebulae (including the full Messier, Stellarium also displays asterisms and illustrations of the constellations for more (DSO) and in option you can add extra catalogs including more than 1 million DSO. But for most planetary events, youĬan only get the highest accuracy (about 1') for the last 2000 years With the run DE200 from NASA JPL, you can simulate the sky between 4000 BCĪnd 8000 AD with accuracy.

Or even less : between 500-3500 AD for Galilean satellites, betweenġ826-2047 AD for the Earth's Moon, and between 1885-2099 AD for Pluto (cf. These ranges, the excessive extrapolations don't give accurate positions (don't try to simulate a celestial event like an solar eclipse or a transitĥ0000 years in the past or you will probably miss it !). Its relative limitations, Stellarium is very impressive by its ability to

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