Galactic Nebula NGC 6357: In the neighbourhood of Cat`s Paw Nebula this wonderful emission nebula can be found, imaged here in the light of the hydrogen Ha spectral line. In the center there is an Open Cluster of very young stars, called Pismeis 24, which were found to be the most massive in our galaxy, about 100 times the mass of our sun. They illuminate the hydrogen gas whipping it aroud with their high ultraviolet radiation and star winds. NGC 6357 is about 8000 LY distance from us.

Object Galactic Nebula NGC 6357
Category H-alpha Images
Designation NGC 6357
Constellation Scorpius
Optics TMB 130 f/6 x 0.8 Televue Reducer/Flattener
Mount Astro-Physics 900 GTO
Camera QHY8/ALccd 6c
Exposure 5 x 10min Astronomik Ha filter, Maxim DL for Capturing
Calibration No
Guiding Meade DSI Pro II and TMB 80 as Guide Scope. Maxim DL as Guiding Software
Processing ImagesPlus,Photoshop
Location-Date Somerset West, South Africa - 15 April 2008
 
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