This is data I took in October of last year on the 10th and 17th. I have run it through updated and new imaging software. In reality, the new software probably means that processing is easier even if it is not always better.
(https://www.astrobin.com/zcczwj/B/rawthumb/qhd/?sync)
I have consciously attempted to reduce the impact of the stars which are dense in this region.
The details are:-
Capture:
Sharpstar 15028 HNT (150mm diameter f2.8)
ZWO ASI 1600MM Pro at -15C
ZWO ASIAir (Camera control, Guiding, Plate Solving etc)
iOptron CEM25P
Subframes:
L - 76 x 15 secs (19 mins)
R - 30 x 40 secs (20 mins)
G - 30 x 40 secs (20 mins)
B - 30 x 40 secs (20 mins
Ha - 28 x 210 secs (98 mins)
Total - 2 hrs 47 mins
Processing Stages:
Pixinsight:
WBPP for
Calibration
Cosmetic Correction
Measurements
Bad Frame Rejection
Reference Frame Selection
Plate Solving Reference Frame
Registration
Local Normalisation
Integration
Autocrop
(Running time 1 hr 42 mins)
PixelMath - L + H = New Luminance (New_L)
New_L PSFImage for FWMH (PSF dia = 2.3px)
New_L BlurXTerminator
GraXpert:
New_L
Pixinsight:
New_L NoiseXTerminator
RGB_ChannelCombination
SpectrophotometricColourCalibration
NRGBCombination
GraXpert:
NRGB
Pixinsight:
NoiseXTerminator_HaRGB
LHaRGBCombination
StarXterminator
CloneStamp (remove residual stars)
(Nebula) GeneralisedHyperbolicStretch
CurvesTransform (create a Nebula Mask)
(Stars) GeneralisedHyperbolicStretch
Affinity Photo 2 (as Tiff):
Adjust saturation/vibrance
Hi-Pass Filter
Combine Nebula and Stars
This was my previous version:
(https://i.imgur.com/UC9IGpO.jpg)
Regards,
John
The original was pretty good John, but I think the new process shows up the Ha Data much better with better colour.
Always worth going back and reprocessing data as your skills develop.
Carole