The Vela Supernova Remnant is made up of many complex tendrils of energised gas and covers an area of sky 8 degrees wide in the southern constellation of Vela. It was formed by a star 900 light years away, that exploded about 12,000 years ago.
This is a wavelength ordered, emission line image, taken using H-alpha, Oxygen3 and Sulphur2 narrow band filters and frames about a quarter of the huge ancient feature.
Remarkably this 7hrs of data was collected in barely 8 hours of darkness (including regular manual focusing and a manual meridian flip, re acquire and re framing) all on one night and under a 90% full moon (not ideal)
The OIII tendrils are the most fascinating feature of this SNR so I particularly wanted to emphasise these, a moonless night would have helped here of course. The result reminds me of a Jackson Pollock painting
All details are under the image
Vela Supernova Remnant - click cursor on the image and move it to pan around an enlarged version.
Bigger version
HERE