Hubble Caldwell 20, the North American Nebula
Nicknamed the North American Nebula because its shape resembles the continent, Caldwell 20 was discovered by William Herschel in 1786.
Credits: NASA, ESA, and K. Stapelfeldt (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of America)
Image CreditNASA, ESA, and K. Stapelfeldt (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of America)
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