Galactic Nebulae NGC 6357, 6334 Wide Field: Close to the tail stars of the constellation of Scorpius, Lesath and Shaula (bottom right of this image), one finds an extensive region of emission nebulae, the most prominent of which are NGC 6357 (left) and NGC 6334 (right). The latter one is also sometimes called Cat´s Paw Nebula and is in a distance of 5500 LY, NGC 6357 is in a distance of 8000 LY.
Very dense dust obscures both nebulae, so that visual observation is quite difficult.
Object
Galactic Nebulae NGC 6357, 6334 Wide Field
Category
Nebulae
Designation
NGC 6357, 6334
Constellation
Scorpius
Optics
Canon EF lens 200mm 1:2.8 @ f/3.5
Mount
Astro-Physics 900 GTO
Camera
SBIG STL 11000M with internal CFW 5
Exposure
3 x 20min Baader H-alpha filter, 3 x 10min each Baader RGB filterset. Maxim DL for image acquisition
Calibration
Dark + Flat Frame
Guiding
Meade DSI Pro II and Skywatcher ED80 as Guide Scope, Maxim DL as guiding software
Processing
Maxim DL5,Photoshop. Color Code L:H-alpha,R,G,B
Location-Date
Somerset West, South Africa - 23 Mar 2010,
Remark
The frames were taken at rather low altitude(appr. 30 deg)
