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About this Image
The wide view image is centered on the bright Lagoon Nebula (M 8) in Sagittarius,
accompanied by the bicolored Trifid Nebula M 20. To the top left there is the open cluster M23.
On the opposite side a part of the huge Sagittarius star cloud shows up.
The distance to emission nebulae is approx. 5200 light years.
Canon 200mm f/2.8 at f/2.8
|Camera||SBIG STL-11000M at -20C, internal filter wheel|
|Date||Aug 14, 2004.|
|Sky Conditions||mag 6.5, high transparency, temperature 14 C,|
|Exposure||RGB= 10:10:10 min (5-minute sub-exposures).|
Image aquisition in Maxim DL 4.0; Image calibration, DDP and color synthesis in ImagesPlus;
Photoshop: curves, color balance,