The Double Cluster, or Caldwell 14, is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. Also known as h Persei and χ Persei (h and Chi Persei), the clusters both lie at an approximate distance of 7,600 light years from Earth and are about 12.8 million years old.
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The Snowflake Cluster is a young open cluster located in the constellation Monoceros. It is one of the objects found within the designation NGC 2264, along with the Cone Nebula, the Christmas Tree Cluster, and the Fox Fur Nebula, but not officially included. The cluster lies at an approximate distance of 2,400 light years from Earth.
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The Christmas Tree Cluster is a young open cluster located in the constellation Monoceros. It is part of the NGC 2264 region, along with the Cone Nebula and the Fox Fur Nebula, and belongs to the Monoceros OB1 association, a loose association of very young stars located in the Orion Arm of the Milky Way.
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