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GUM Nebula OIII and Ha - RCW33, RCW34-36
The Gum Nebula (Gum 12) is a nebula that covers approx 40° in the constellations Vela. It lies approx 1300 lightyears from the Earth.
These thin nebulosities are the remains of a star which ended its life as an supernova explosion around 11,000 years ago.
This OIII area, a small part of Gum 12, is an area not so oft imaged, except the pencil nebula at the lower left.
Exposures: 55 x 5 minutes with OIII- and 48 x 5 minutes with Ha-filter,
using a FLI 16801 Fingerlake CCD camera on a Takahashy FSQ 106 with 530 mm focal length on a Paramount ME mount.
All images were exposed remotely on the Siding Spring iTelescop Farm at T08.
Between January 27th and February 21st 2017.
The RGB image was created by loading
Ha into R
OIII into G and
OIII into B
more details:
http://www.astrobin.com/full/284798/0/
Annotated:
http://www.werbeagentur.org/oldwexi/..._Annotated.jpg
http://www.werbeagentur.org/oldwexi/...eepsky/GUM.jpg
Gerald