CELESTIAL IMAGE CO. / SCIENCE PHOTO LIBRARY CELESTIAL IMAGE CO. / SCIENCE PHOTO LIBRARY
Open star cluster NGC 2451. True-colour optical image of the open star cluster NGC 2451 in the constellation Puppis. Open clusters such as this one are believed to contain stars which all formed together from the same cloud of gas and dust. The bright red star in the cluster is c Puppis. This image was produced by digitally combining photographs taken by the UK Schmidt Telescope in blue and red light.
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