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About this Image
In the center of this image the open cluster M 7 is an attractive binocular target.
The surrounding deep milkyway star field is only visible on longer exposures like this one. In the upper right corner the more distant open cluster M 6 is present. To the right the 2 emission nebulas NGC 6334/6457 are glowing deeply red. The image shows the tail area of Scorpius.
TEC-140 refractor with flattener at f/7
|Camera||SBIG STL-11000M at -25C, internal filter wheel|
|Date||May 20, 2006.|
|Sky Conditions||mag 6.5, high transparency, temperature 5 C,|
RGB= 10:10:10 min (10-minute sub-exposures)
Image aquisition in Maxim DL 4.15; Image preprocessing in CCDStack;
Photoshop: curves, color balance