![Diagram of stellar orbit statistics for CALIFA galaxies. The higher a galaxy's position, the larger that galaxy's fraction of hot (very elongated) orbits. The farther to the right a galaxy's position, the larger the fraction of cold (nearly circular) orbi Diagram of stellar orbit statistics for CALIFA galaxies. The higher a galaxy's position, the larger that galaxy's fraction of hot (very elongated) orbits. The farther to the right a galaxy's position, the larger the fraction of cold (nearly circular) orbi](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/gallery/news/prensa1337_3007.jpg?itok=GRxih8VQ)
This project, in which the Instituto de Astrofísica de Canarias (IAC) is collaborating, has made a map with 300 galaxies close to the Milky Way, which they have classified on the basis of the way the stars are moving, rather than using the morphological classification used until now. The results of this work were recently published in the journal Nature Astronomy.
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