* Astronomy

NGC 3242 (also known as the Ghost of Jupiter, PK 261 32,1, ESO 568-PN5 and Caldwell 59) is a magnitude +8.6 planetary nebula located 1400 light-years away in the constellation Hydra.
 The nebula is easily seen in amateur telescopes and looks to most observers as a bluish-green blob. 
The central star, HD 90255, is at magnitude +12.1

The nebula was discovered by German-British astronomer William Herschel using a 47.5-cm (18.7-inch) reflector at Datchet, Berkshire, on the 7th February 1785 and catalogued as H IV.27.
The nebula was observed in 1888, by John Louis Emil Dreyer and listed as NGC 3242.

Right Ascension 10h 24m 46.1s, Declination -18° 38' 32.6"

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