Just wanted to share part 3 of this WIP, the california nebula in UHC. This is 3 sessions over two weeks from bortle 9 skies during rare windows in the clouds and snow, totalling about 7.25 hours.
My girlfriend has renamed it "Santa's sleigh dust nebula" so I thought it would be a fitting Christmas share.
Capture details below!
by Spitzbue
1 Comment
Gear:
* ASI2600MC Pro on an askar 71f (490/71mm, f6.9)
* ASI120mm mini guide cam on an SVbony 40mm guide scope
* ASIAIR mini as the brains
* Skywatcher Star Adventurer GTi mount
* Svbony 260 UHC Filter
Capture:
* 155x180s exposures over three nights, 100 gain, 0C cooling.
* 40 flats
* 20 bias
* 20 darks
Processing: (APP stack, Processing in PixInsight)
* Stacked in APP, for some reason Pix could not normalize the third group post meridian flip and 3 days of troubleshooting didn’t solve things (Pix’s websight was also under maintenance so that didn’t help lol)
* BlurX Correction
* Spectro. flux calibration
* Graxpert background extraction
* Spectro color calibration
* Star X
* stretch on starless and stars
* fine tuning with curve adjustments
* Pixel math multiplication for recombination
* final histogram stretch
* NoiseX + BlurX
* export straight from Pix