The Milky Way Project: Probing Star Formation with a New Yellowball Catalog presents a study of 518 infant star-forming regions known as "Yellowballs," drawn from a catalog made possible by the efforts of citizen scientists. The Milky Way Project is one of roughly 100 research initiatives in Zooniverse, the world's largest online platform for citizen science. During 2016-2017, citizen scientists identified more than 6,000 Yellowballs (YBs), which were named for their appearance in Spitzer Space Telescope images. A major result of the new study is that YBs provide snapshots in time of nascent star-forming regions spanning an enormous range of mass and luminosity.
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