Keyhole Nebula


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By
Catalog
Obj Type
Location
Date Taken:
Mazlin
NGC 3324
Nebula
CTIO, Chile
03-03-2008
Description

At the heart of the southern Great Eta Carina Nebula (NGC 3372) is the Keyhole Nebula (NGC 3324), showcasing the famous star, Eta Carina, to the lower left. Unfortunately, most denizens of the Northern Hemisphere have never glimpsed this bright region. In this version, taken from Chile, we present a narrowband image made up of only 2 frequency components -- Ha (656.3 nm) and OIII (500.7 nm), represented by the red and blue in the image, respectively -- the green channel was synthesized from the other 2 using Steve Cannistra's modified bicolor technique in Adobe PS.

Technical Details
Exposure Time:
Ha 3 min X 12; OIII 3 min X 12
Camera:
SBIG STL-11000M
Telescope:
RCOS 16 inch f/8.7 Ritchey-Chretien
Mount:
Software Bisque Paramount ME
© 2014 Mazlin
Used with permission, No reproduction of these images are permitted without written approval from Mazlin.