NGC 2803, also known as PCG 26181, is an elliptical or lenticular galaxy in the zodiac constellation Cancer. It was discovered March 21, 1784, by William Herschel. It is interacting with NGC 2802.
One supernova has been observed in NGC 2803: SN 2017ilf (type Ia, mag. 18).Transient Name Server entry for SN 2017ilf. Retrieved 25 March 2023.
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