Veil Mosaic

This is a large supernova remnant, an expanding cloud of shocked gas, born of the death explosion of a massive star. Light from the original supernova explosion reached Earth over 5,000 years ago. Also known as the Cygnus Loop, the Veil Nebula now spans nearly 3 degrees or about 6 times the diameter of the full Moon in the sky.

 

The data for this image was gathered over a number of separate nights mid Aug to mid Sept 2011. Pleased with how this turned out, the previous cooling and shutter issues with the camera now fixed, yay! (Thanks to Terry @ SX).

 

Tech details below:

 

TMB 92ss + Borg DG-L .85x reducer @ F4.7

Mount - EQ6

Starlight Xpress SXVR-H18 @ -20 degs

QHY5 PHD guiding, guidesope Meade 127

 

2 pane mosaic. Each pane:

 

Ha - Baader 7nm

- 15x12min

O3 - Baader 8nm

- 15x12min

 

12 hours total

 

Messed about trying different colour blends a fair bit but ended up with:

Red - Ha

Green - OIII 70% Ha 30%

Blue - OIII 90% Ha 10%

 

Captured in Nebulosity 2

Calibration, stack and DDP in Images Plus

Curves + all other processing PS CS3

 

Done