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M17 - Swan nebula in Sagittarius
M17 - Swan nebula in Sagittarius
Pascal


Photograph Information Photographer's Comments
Camera: Canon EOS-350D Rebel XT
Location: Kariani, Greece
Date: Jul 18, 2009
Aperture: f/5
ISO: 1600
Shutter: 61 min (total)
Galleries: Sky, Astrophotography
Date Uploaded: Aug 7, 2009

Viewed: 480
Comments: 0
Favorites: 1 (view)

M17 lies some 4900 light years away at the constellation of Sagittarius.
It's a region of star formation and shines because of the high-energy radiation of young stars ("young" compared with the cosmic time scale!).
Under ideal conditions (no light pollution) M17 is barely visible as a faint star.

Details:
Takahashi FSQ-106
Takahashi EM200
Canon 350D Baader modified, Hutech IDAS LPS
30 x 122 sec lights , ISO 1600 (23 darks frames, 20 bias frames)

FOV=99.4% of the original frame
Autoguiding with PHD, Toucam 740 , Celestron ED80
Alignment, calibration, stacking with DeepSkyStacker, final processing with PS3 and PixInsight LE

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