NGC 6888, Crescent Nebula

NGC 6888, Crescent Nebula

© Jimenez, ManuelTelescope: Planewave CDK 17″ F6.8 Corrected Dall-Kirkham Astrograph
Mount: Paramount ME
Camera: FLI PL 16803 Without Cover Slip
Filters: Astrodon Ha 3nm, OIII 3nm
Date: July 2011
FWHM: 2″
Processing: Pixinsight

Ha : 0.75xHa + 0.25xOIII : OIII

Ha: 4×1800 seconds (2 hours)
OIII: 14×1800 seconds (7 hours)
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