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Encyclopedic overview
This is a list of NGC objects 1–1000 from the New General Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies. Other objects in the catalogue can be found in the other subpages of the list of NGC objects.
Compact galaxy group Robert's Quartet
Excerpted from Wikipedia’s “NGC 453” article, available under the CC BY-SA 4.0 licence.