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jshuder | all galleries >> Astrophotography >> Sharpless HII Regions > IC 1396 (Sh2-131)
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IC 1396 (Sh2-131)

IC 1396 Emission nebula and cluster in Cepheus. Taken Aug 20, 22, Sept 13 and Sept 14 2007 with a
DSI Pro II and Outback Cooler with a Pentax SMC-DFA 100 mm lens. H-alpha subframes were 5 min at
f3.5, OIII subframes were 8 min at f3.5 (not very prominent), G subframes were 2 min at f3.5 and B
subframes with an Orion Skyglow filter (used to control star bloat in the B channel) were 3 minutes
at f3.5. The resulting total exposures were Ha = 110 min, OIII = 144, G= 52 min and B= 81 min.
The final LRGB composite was processed in the following combination Ha:Ha:OIII+G:OIII+B. Captured
with Envisage, calibrated and sigma combined in Iris with other processing using FITZ, PixInsight LE
and Photoshop CS. North is up.

other sizes: small medium original auto
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