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Cat´s Paw Nebula: Bear Claw Nebula as it is also sometimes called, was discovered 1837 by John Herschel at the Cape of Good Hope (Cape Town). Several very heavy stars, as big as ten times the mass of our sun, are ionizing the hydrogen gas in their neighbourhood, thus emitting light predominently in this spectral line. The nebula is in a distance of 5500 LY from us.

An image in the light of the H-alpha spectral line of hydrogen you will find here.

Object Cat`s Paw Nebula
Category Nebulae
Designation NGC 6334
Constellation Scorpius
Optics TMB 130 f/6 with Field Flattener
Mount Astro-Physics 900 GTO
Camera SBIG STL 11000M with internal CFW 5
Exposure 5 x 20min (1x1 bin) Baader H-alpha (7nm) filter, 3 x 10min each (1x1 bin) Astrodon True Balance RGB filterset. Maxim DL for image acquisition
Calibration Dark Frame
Guiding Selfguiding
Processing Maxim DL5, Photoshop. Color Code L:Ha RGB
Location-Date Somerset West, South Africa - 27 April 2009
Remark Multiple Luminance Layering
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