IC405 The Flaming star nebula in SL-RGB


This image, of the Flaming Star nebula (IC405), is a test of processing with a synthetic luminance instead of a proper one.
All filters where shot from within the ultra light polluted Athens, and although the filter does a nice job attenuating the skyglow from street lights,
gradients do creep in the frames so the processing was quite tricky!
I will revisit the target armed with my narrowband filters :D

Astronomy object details: 

The Flaming Star Nebula (also known as the IC 405, SH 2-229, or Caldwell 31) is an emission/reflection nebula in the constellation Auriga, surrounding the bluish star AE Aurigae.
It shines at magnitude +6.0 and it surrounds the irregular variable star AE Aurigae and is located near the emission nebula IC 410, the open clusters M38 and M36, and the naked-eye K-class star Hassaleh.
The nebula measures approximately 37.0' x 19.0', and lies about 1,500 light-years away.
It is believed that the proper motion of the central star can be traced back to the Orion's Belt area.
The nebula is about 5 light-years across.

The bright star AE Aurigae wich is called The flaming star, visible near the nebula center, is so hot it is blue, emitting light so energetic it knocks electrons away from atoms in the surrounding gas.
When an atom recaptures an electron, light is emitted creating the surrounding emission nebula.
A great target for astrophotography :D

Technical details: 

SBIG 8300M
HEQ5 Pro
Guiding camera: QHY CCD QHY5 mono
Filters used: Baader LRGB
Starlight Xpress Starlight Xpress FW 5*2"

Resolution: 2000x1524
Baader Blue 2": 30x120" -5C bin 1x1
Baader Green 2": 30x120" -5C bin 1x1
Baader Red 2": 30x120" -5C bin 1x1
+ IDAS LP2 on top of all RGB filters

Integration: 2.0 hours
Darks: ~50
Flats: ~20
Bias: ~300

Avg. Moon age: 1.80 days
Avg. Moon phase: 3.63%
Bortle Dark-Sky Scale: 9.00
Temperature: 15

Pixel scale: 2.133 arcsec/pixel
Field radius: 1.191 degrees

Locations: Athens, Greece
Dates: Oct. 15, 2015

Projection origin.. [1588.048303 1210.078205]pix -> [RA:+05 16 22.16 Dec:+34 22 50.29]
Resolution ........ 2.132 arcsec/pix
Rotation .......... 172.540 deg
Focal ............. 522.44 mm
Pixel size ........ 5.40 um
Field of view ..... 1d 52' 51.2" x 1d 25' 59.4"
Image center ...... RA: 05 16 22.151  Dec: +34 22 50.11
Image bounds:
   top-left ....... RA: 05 12 20.471  Dec: +33 32 38.30
   top-right ...... RA: 05 21 18.221  Dec: +33 47 09.36
   bottom-left .... RA: 05 11 21.890  Dec: +34 57 45.66
   bottom-right ... RA: 05 20 28.684  Dec: +35 12 31.63

Captured with  Main Sequence Software SequenceGeneratorPro
Processed in PixInsight

Annotated astrophotograph: 
Space object type: