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Celestial hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  Ghost of Jupiter  ·  NGC 3242
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The Ghost of Jupiter, Terry Robison
The Ghost of Jupiter
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The Ghost of Jupiter

Getting plate-solving status, please wait...
The Ghost of Jupiter, Terry Robison
The Ghost of Jupiter
Powered byPixInsight

The Ghost of Jupiter

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Description

NGC 3242, is a planetary nebula located in the constellation Hydra, around 1400 to 2500 light years away. It is also known as the Ghost of Jupiter, or Jupiter's Ghost as its apparent size is similar to the Planet Jupiter. William Herschel discovered the nebula on February 7, 1785 from the Cape of Good Hope, in South Africa.

The nebula measures around two light years long from end to end, and contains a central white dwarf with an apparent magnitude of eleven. The inner layers of the nebula were formed some 1,500 years ago.

I have been collecting data on this for a few years now, from multiple cameras, and locations. So, now it was time to put it all together. It may not look like it, but this may be one of the toughest images I have attempted to process to date. The dynamic range is incredible. The red and blue gas regions to the left of the nebula are very dim, and the nebula itself very bright. There is also a lot of very dim dust throughout the full frame I wanted to keep. It gives an uneven Smokey red brown look throughout background. Both broad-band (Lum, Red Green Blue) and narrow-band (Ha, OIII) data were used to create the image to try and highlight different areas

The planetary has what looks like waves of matter blown away. This was very strong in OIII, and not present in the Ha data. Many galaxies are spread throughout the background.

Thanks for looking.



Exposure Details:

Lum 75X900

Red 27X450

Green 37X450

Blue 24X450

Ha 45X1200

OIII 38X1200

Total time 58 hours

Instruments Used:

10 Inch RCOS fl 9.1

Astro Physics AP-900 Mount

SBIG STL 11000m

FLI Filter Wheel

Astrodon Lum, Red, Green, Blue Filters

Baader Planetarium H-alpha 7nm Narrowband-Filter

Baader Planetarium O-III 8.5 Narrowband-Filter

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The Ghost of Jupiter, Terry Robison

In these public groups

Objects of the South - negative declination only
Astronomical Society of Victoria (ASV)
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