RJSuther on January 8, 2026 9:49 pm Equipment Celestron 8se SCT Telescope ZWO ASI294 mc pro imaging camera, cooled to -10C ZWO AM5N mount ZWO ASIAIR plus Williams Optics guide scope 120mm ZWO ASI 120 mm guide camera ZWO UV/IR cut filter for RGB, Optolong L eNhance dual band filter for Ha & OIII Exposure 6 hours of RGB data collected over 2 nights, 5 hours of Ha & OIII data 180 second exposures, 125 gain imaging camera, 80 gain guiding camera Post Processing RGB Stacked in Siril Ha & OIII extracted in Siril RGB split into R, G, B. All 5 frames registered in Siril Pixel math to combine all frames Starless nebula stretched in photoshop Starless and star mask reintegrated in Siril
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Equipment
Celestron 8se SCT Telescope
ZWO ASI294 mc pro imaging camera, cooled to -10C
ZWO AM5N mount
ZWO ASIAIR plus
Williams Optics guide scope 120mm
ZWO ASI 120 mm guide camera
ZWO UV/IR cut filter for RGB, Optolong L eNhance dual band filter for Ha & OIII
Exposure
6 hours of RGB data collected over 2 nights, 5 hours of Ha & OIII data
180 second exposures, 125 gain imaging camera, 80 gain guiding camera
Post Processing
RGB Stacked in Siril
Ha & OIII extracted in Siril
RGB split into R, G, B. All 5 frames registered in Siril
Pixel math to combine all frames
Starless nebula stretched in photoshop
Starless and star mask reintegrated in Siril