Ghost of Jupiter (NGC 3242)

Ghost of Jupiter

The Ghost of Jupiter (NGC 3242) is a planetary nebula in the constellation Hydra, just south of Mu Hydrae. Although round and similar in apparent size to Jupiter, it is much dimmer and an unmistakable blue-green in color. Even a small telescope will show it well; larger instruments reveal its inner torus and central star.


visual magnitude 9
angular diameter 20.8'
distance ~3,000 light-years (920 pc)
position RA 10h 24m 46s,
Dec -18° 38' 33"
other designations ESO 568- 5, GC 14298,
HD 90255, PN G261.0+32.0