![]() Superb interactive 3D viewing is included. If you install more than one of the above files, AstroGrav will automatically choose the largest one, with the most faint background stars. AstroGrav 4.5.3 Download Now Direct link 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 accurately simulated. If you already have AstroGrav running, you need to restart it in order to see the faint background stars. Verdict: AstroGrav is one of the best astronomy software available for the PC. On Windows, this is usually the C:\Program Files\AstroGrav folder, and on a Mac, this is usually the Applications/AstroGrav folder. ![]() When you have downloaded one of the above files, unzip it, and move it to the folder containing the AstroGrav application. Stars 15.zip : 512.0 MB (511,975,188 bytes) Installation Download Hallo northern sky 4.2.15 - Comprehensive planetarium that allows you to explore the night sky, go to a specific position, perform search operations, connect to ASCOM telescopes, and. Stars 14.zip : 235.4 MB (235,435,301 bytes)Ĭlick on the link below to download approximately 36 million background stars down to 15th magnitude.ĭownload Background Stars to 15th Magnitude Stars 13.zip : 103.7 MB (103,660,453 bytes)Ĭlick on the link below to download approximately 16 million background stars down to 14th magnitude.ĭownload Background Stars to 14th Magnitude Stars 12.zip : 43.9 MB (43,903,976 bytes)Ĭlick on the link below to download approximately 7 million background stars down to 13th magnitude.ĭownload Background Stars to 13th Magnitude DownloadĬlick on the link below to download approximately 3 million background stars down to 12th magnitude.ĭownload Background Stars to 12th Magnitude If you want as many faint background stars as possible and aren't too concerned about drawing speed, choose the largest download, which contains stars down to 15th magnitude. ![]() Drawing performance is slower for the larger downloads with more faint background stars, so it's a good idea to choose the smallest download that satisfies your requirements. There are four different faint background star downloads available. They're supplied as separate downloads because the data is many times the size of the rest of AstroGrav, and so only those who are interested need to download them. To satisfy this requirement, millions more faint background stars are available as separate downloads. This is adequate for many purposes, but some users will require many more background stars, particularly when wanting to see the detailed star background near a faint asteroid or comet. The AstroGrav download includes approximately 118,000 stars from the Hipparcos catalogue for use with solar system simulations.
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