NGC 4361

The planetary nebula NGC 4361 in Corvus, in an H-alpha image from the Lowell Observatory 1.1-meter telescope. Because of its symmetry resembling a spiral in the outer parts, and its location south of the Virgo galaxy cluster, it can be mistaken for a galaxy on casual examination of photographs (including one attempt by an astronomer too eminent to name here, who tried to sneak it into a galaxy-classification exercise when I was in grad school).

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