Astro photography

Challenge #58 in the Things we love series. Hosted by They call me Hans.
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Space…the final frontier. Submit your photos of the stars, whether they be 4 minute or 40 minute exposures. Subject matter is open ended, but space must be the main subject.
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M16
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The central region (about 14.2 by 13 arcminutes) of the M16 nebula.
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Submitted: Thursday, 4th June, 2015 16:39 (GMT)
Taken: Friday, 1st May, 2015
Focal length: 46200 mm
Shutter speed:
Aperture: F11
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Notes: Imaged in three narrowband wavelengths: H-alpha (6570 Å), OIII (5009 Å), and SII (6727 Å).
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