Royal Astronomical Society
IMAGE: Spiral structure in the Pinwheel Galaxy (Messier 101), as observed by the Hubble Space Telescope. view more
Credit: NASA, ESA, CXC, SSC, and STScI
Hundreds of thousands of volunteers have helped to overturn almost a century of galaxy classification, in a new study using data from the longstanding Galaxy Zoo project. The new investigation, published in the journal Monthly Notices of the Royal Astronomical Society, uses classifications of over 6000 galaxies to reveal that ?well known? correlations between different features are not found in this large and complete sample.
Almost 100 years ago, in 1927, astronomer Edwin Hubble wrote about the spiral galaxies he was observing at the time, and developed a model to classify galaxies by type and shape. Known as the ?Hubble Tuning Fork? due to its shape, this model takes account of two main features: the size of the central region (known…
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