Clic here for 60% size 1354x2260 (1100 kB)
The western part of the Veil Nebula (NGC 6960) together with the eastern part is a remnant of a supernova explosion that occurred about30.000 - 40.000 years ago. It shows strong red H-alpha emission and blue-green O-III components.
410 mm cassegrain in corrected prime focus at f/3
About this Image
It is located 1,400 light years away in the constellation of Cygnus.
Find the full Veil area as mosaic here.
North is up.
Technical Details
Optics
Mount
MK-100 GEM
Camera
SBIG STL-11000M at -15C, internal filter wheel
Filters
All Astronomik (H-alpha + O-III + B)
Date
Aug 03, 2005
Location
Wildon/Austria
Sky Conditions
mag 5 sky, temperature 15-20 C,
Exposure
Ha = 90 minutes, O-III = 90 minutes (30-minute sub-exposures),
B= 40 min (10-minute sub-exposures); all 1x1.
Processing
Image aquisition, calibration and color synthesis in Maxim DL 4.11;
Photoshop: H-alpha used as red channel; O-III blended with green and blue channel;