Jun 16, 2023

Iris Nebula (NGC 7023)

NGC7023 (also known as the Iris nebula and Caldwell 4) is a bright reflection nebula located in the constellation Cepheus. Its unusual structure of interstellar gas and dust clouds evokes the image of an iris flower. The dusty blue petals of the Iris nebula spread out over six light-years… Read more



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