Fetus Nebula (NGC 7008)

 

clic for 150% size 1060 x 880 (150 kB)

 

clic for 36% size 1315 x 944 (326 kB)

Clic here for 60% size 2191x1574 (741 kB)

 

About this Image

This planetary Nebula is named Fetus Nebula by it's appearance. It is showing a bluish irregular halo and two conspicuous nodules with some fine structure visible in this image. The shell is interacting with the ISM (interstellar matter). The main emission is O-III with some H-alpha emission in the inner parts.
The nebula is located 2.800 light years away in the constellation of Cygnus.
North is bottom right.

Find more information on this object here: 1.


Technical Details
Optics

16" cassegrain in secondary focus at f/10

Mount MK-100 GEM
Camera SBIG STL-11000M at -15C, 8pos STL filter wheel
Filters Baader LRGB, 8 nm O-III
Date Aug 16-18, 2008.
Location Wildon/Austria
Sky Conditions mag 5 sky, temperature 20C; 1.5-2.4" raw FWHM
Exposure L:R:G:B = 120:40:40:40 min (10 min sub-exposures)
O-III = 120 min (30 min subexposures)
Programs used Maxim DL 4.5
CCDStack
Fitsliberator II
Registax
Photoshop CS3