Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula. (Peter Goodhew)

Celestial hemisphere: Southern · Constellation: Puppis (Pup) · Contains: HD61819 · HD62000 · HD62146 · HD62289 · M 46 · NGC 2437 · NGC 2438 · PK231+04.1 · PK231+04.2

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Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

Link: https://www.imagingdeepspace.com/ngc-2438.html

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Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

Link: https://www.imagingdeepspace.com/ngc-2438.html

M 46 is an open cluster.

NGC 2438 is a multi-shell planetary nebula. It is expanding with a velocity of 37 km/s. The structure is surrounded by a fainter, mostly circular halo that is more visible on the western half, and has a diameter of 130 arc seconds.

Minkowski 1-18 (also known as M1-18 and PK231+04.1) is a smaller (35 arc seconds) planetary nebula.

The Calabash Nebula, also known as the Rotten Egg Nebula or by its technical name OH 231.84 +4.22, is a protoplanetary nebula 1.4 light years long and located some 5,000 light years from Earth in the constellation Puppis. The Calabash is almost certainly a member of the open cluster Messier 46, as it has the same distance, radial velocity, and proper motion. The central star is QX Puppis, a binary composed of a very cool Mira variable and an A-type main-sequence star.

Planetary Nebulae
Entre Encinas y Estrellas (e-EyE)

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Status	Advanced success
Started	...
Astrometry.net job	9103964
PixInsight job	ND7YA7VVBDZH6UMAL9QNZAYW9U3HWSWZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h41m50s.360
RA (top/left)	07h43m21s.941
RA (top/right)	07h40m23s.863
RA (bottom/right)	07h40m18s.355
RA (bottom/left)	07h43m17s.201

Dec (center)	-14°44′06″.97
Dec (top/left)	-14°14′53″.41
Dec (top/right)	-14°13′56″.97
Dec (bottom/right)	-15°13′17″.76
Dec (bottom/left)	-15°14′14″.74

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Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

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Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

Open cluster M46, two planetary nebulae (NGC 2438 and Minkowski 1-18) and the Calabash Nebula.

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