Equipment: AT8RC Sky-Watcher EQ8Rh ZWO ASI1600mm Pro Imaging Camera ZWO 8 position 31mm Electronic Filter Wheel ZWO 31mm L, R, G, B filters Orion 60mm Guide Scope ZWO ASI290mm-mini Guide Scope Pegasus Astro Ultimate Power Box Pegasus Astro Focuser Pegasus Astro Falcon Rotator Acquisition: L - 237 x 120s (-10° C, Gain 0) R – 90 x 120s (-10° C, Gain 0) G – 79 x 120s (-10° C, Gain 0) B – 81 x 120s (-10° C, Gain 0) Total integration time: 16hr 14min All filter groups: Calibrate all images with 100 darks, 20 flats, 1000 bias WeightedBatchPreprocessing Script with Drizzle x2 Processing in Pixinsight: GraXpert BlurXTerminator ChannelComination RGB SpectrophotometricColorCalibration NoiseXTerminator BlurXTerminator Histogram transformation Curves LRGBCombination Histogram transformation Curves BlurXTerminator Dynamic Crop for composition Resample Transfer to Affinity Photo: Place Watermark Flatten Export as JPEG for posting
Wow. Very cool area. Are the diffraction spikes generated from the scope? Astro-Tech AT8RC is a Ritchey-Chrétien right? and I thought they don’t have secondary spiders…. Edit—-I see that scope does have 4 vanes — that explains it
Equipment:
AT8RC
Sky-Watcher EQ8Rh
ZWO ASI1600mm Pro Imaging Camera
ZWO 8 position 31mm Electronic Filter Wheel
ZWO 31mm L, R, G, B filters
Orion 60mm Guide Scope
ZWO ASI290mm-mini Guide Scope
Pegasus Astro Ultimate Power Box
Pegasus Astro Focuser
Pegasus Astro Falcon Rotator
Acquisition:
L - 237 x 120s (-10° C, Gain 0)
R – 90 x 120s (-10° C, Gain 0)
G – 79 x 120s (-10° C, Gain 0)
B – 81 x 120s (-10° C, Gain 0)
Total integration time: 16hr 14min
All filter groups:
Calibrate all images with 100 darks, 20 flats, 1000 bias
WeightedBatchPreprocessing Script with Drizzle x2
Processing in Pixinsight:
GraXpert
BlurXTerminator
ChannelComination RGB
SpectrophotometricColorCalibration
NoiseXTerminator
BlurXTerminator
Histogram transformation
Curves
LRGBCombination
Histogram transformation
Curves
BlurXTerminator
Dynamic Crop for composition
Resample
Transfer to Affinity Photo:
Place Watermark
Flatten
Export as JPEG for posting
Wow. Very cool area. Are the diffraction spikes generated from the scope? Astro-Tech AT8RC is a Ritchey-Chrétien right? and I thought they don’t have secondary spiders….
Edit—-I see that scope does have 4 vanes — that explains it
That is correct, they do.