NGC 7293 -- The Helix Nebula III


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By
Catalog
Obj Type
Location
Date Taken:
Mazlin
NGC 7293
Nebula
CTIO, Chile
10-01-2010
Description

This version of the Helix was accomplished by using the Ha and OIII data only, a la Steve Cannistra's modified bicolor technique, wherein the green channel is synthesized from the Red (Ha) and Blue (OIII) channels. Some of the brighter stars were overlayed with RGB data.

Technical Details
Exposure Time:
Ha 19 hrs, OIII 7 hours, Red 4 hrs, Green 2.5 hrs, Blue 4 hrs
Camera:
Apogee U9
Telescope:
RCOS Carbon Truss 16 inch f/11.3 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
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