Basic object information
Object name: NGC 3242
Popular name: Ghost of Jupiter
Object type: Planetary nebula
Magnitude: 7.7
Size: 1.1'
Magnitude of central star: 12.3 Object classification: 4(3b)
Description: ! vB,lE 147,45'' d,blue
Notes: H IV 27;Ghost of Jupiter

Catalog information
RA (J2000.0): 10h 24m 48.0s
Dec (J2000.0): -18 39' 00"

Constellation: Hydra

Observer: Iiro Sairanen
Obs. place: Pico de la Nieve (1900 m), La Palma, Spain
Date/Time: 30/31.3.2008 1:15

Telescope: Newton 110/805 mm

Magn: 230x

Filter: O-III

Field: 21'

NE Lim.mag: 7.2

Background sky: 2

Seeing: 2

Height: 40
Visuality: I
Weather: +7C, windy

Ghost of Jupiter. A very tricky planetary nebula thru small telescopes. There are several details just detachable with intent observing. At first, this nebula is very bright and it stands high magnification very well, narrowband filters might also help. I used 230x and an O-III filter. With this combination I saw brighter spot in the middle and C figures on the edges. These details weren't easy. Without O-III filter there was a weak halo around the blue nebula but the details were gone.