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NGC 2440 

PLANETARY NEBULA IN PUPPIS (THE POOP DECK)

(Image centered at: ra 07 h: 41m / dec -18º 12')

CLICK THE IMAGE FOR A HIGH RESOLUTION VIEW

February - 2025, Home Backyard in Martinez, Buenos Aires, Argentina

DATA

TYPE: Planetary Nebula 

APPARENT DIAMETER: 1.3 arc minutes

APPARENT MAGNITUDE (V): 9.4

DISTANCE: 4000 light years

IMAGE INFORMATION

INSTRUMENT: 6" ORION OPTICS UK (Ultra Grade Optics) w/Sky Watcher Coma Corrector (0.9x) working at at f4.5

CAMERA: QHY 183 MONO

MOUNT: VIXEN GDPX, OAG with Starlight Xpress Lodestar

FILTERS: BAADER LRGB Set + ANTLIA HA 3nm

SKY CONDITIONS: urban skies - Bortle 8

EXPOSURES: LHARGB (30,45,45,45,45)

OBJECT DESCRIPTION AND IMAGE SESSION

Like a Gem in the middle of the night sky lies this colourful planetary nebula in the Constellation of Puppis 3º from the limit BORDER of Canis Major. NGC 2440 contains the hotter white dwarf known which is not visible in the image. HD62166 is about 200.000 Cº  The nebula was created by a "Sun like star" which had expulsed it external layers material in the last stages of its life. The red star to de left is SAO153271 shining at magnitude 8.46

NGC 2440 was discovered by German / British astronomer William Herschel on March 4, 1790. He described it as "a beautiful planetary nebula of a considerable degree of brightness, not very well defined.