Just trying to learn quick processing skills and also how to use the hyperbolic stretch script to quickly get a reasonable stretch. It really needs a lot more work on the stars, but I must admit that Generalized Hyperbolic Stretch is growing on me.
Basically this was a total of 5.5 hours capture of RGB only.
Total time to process after calibration was less than one hour.
* Sub measurement and weighting, registration and integration: about 20 mins using Winsorized Sigma Clipping and no Local Normalisation. Weighting was 60% PSF SNR Weight and 40% Eccentricity as I had some guiding issues which made stars oblong and whispy clouds that were affecting my SNR/background gradients.
* Dynamic Crop
* DynamicBackgroundExtraction on individual RGB channels
* ChannelCombination
* ColorCalibration
* GeneralisedHyperbolicStretch
* NoiseXterminator
Export to PNG
* Tweak in photoshop .. levels, curves, sharpening
I know it's overprocessed and a bit rough, but gives me a general feel of what it might look like with careful processing.
Last thoughts: This was taken in mid July over 3 nights in my back garden in a suburban area in Southern England, about one hour each night after sunset and with whispy high altitude clouds on a cheap £400 Newt. I'd love to see what could be achieved with a decent OTA in a dark sky site
Saving up as we speak to both move house and build an observatory.
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