3 ms·
Where does the data come from for this? The Gaia satellite database?
by OptCohTomo 2y ago
Where does the data come from for this? The Gaia satellite database?
- araes 2y agoIt might be the hygdata set which can be found here: https://github.com/astronexus/HYG-Database https://github.com/astronexus/HYG-Database It currently says it has the "Hipparcos-Yale-Gliese" database, with 119,614 stars and the "Tycho-2/Gaia" subset with 118,971 stars. That seems pretty close to the numbers quoted in the demo. I used it previously for a matrix math conversion project translating the NIST JAMA library into a Javascript library. If interested, the test page as a githack link can be found here. Click the "Run 3D Ellipse Fitting on Nearby (100 LY) Stellar Data". My example only uses the 25,000 out to 100 LY. https://rawcdn.githack.com/conceptualGabrielPutnam/JAMA4JS/253f01110a14750c173cf4568053602f0711733f/JAMA_Test.html https://rawcdn.githack.com/conceptualGabrielPutnam/JAMA4JS/2...