Western Veil Nebula with TEC-140 (NGC 6960)

clic for 60% size 1601 x 2404 (1400 kB)

Clic here for an inverted H-alpha image in 50% size 1336 x 2004 (783 kB)


About this Image

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.
It is located 1,400 light years away in the constellation of Cygnus.
Find the full Veil area as mosaic here.
North is up.

This is first light for the new TEC-140 field flattener and for the Baader 7 nm Ha filter.


Technical Details
Optics

TEC-140 refractor with TEC field flattener at f/7

Mount MK-100 GEM
Camera SBIG STL-11000M at -15C, internal filter wheel
Filters Astronomik RGB, Baader 7 nm Ha
Date Aug 23, 2006
Location Wildon/Austria
Sky Conditions mag 5 sky, temperature 18 C,
Exposure Ha = 60 minutes, (30 min subexposures),
R:G:B= 20:20:20 min (10-minute sub-exposures); all 1x1.
Processing Image aquisition in Maxim DL 4.54; calibration and color synthesis in CCDStack.
Photoshop: H-alpha used as red channel, color balance