NGC 2867 is planetary nebula in the southern constellation Carina, 1.2° N-NE of the 2nd magnitude star Iota Carinae.
NGC 2867 was discovered by John Herschel from the Cape of Good Hope on April Fools Day, 1834. Herschel was almost fooled into thinking it was a new planet. Its size and appearance were certainly planet-like, and it was only after careful checking that Herschel was convinced it was a nebula.
NGC 2867 is tiny, with an angular size of only 14 arc seconds, and has a visual magnitude of 9.7. It is approximately 1700 light years (520 parsecs) away, and 0.45 light years across. It one of only a few dozen such objects known to have a Wolf-Rayet star (type WC6) as its central star. NGC 2867 may be no more than 2,750 years old.