M 42, The Orion Nebula, taken by Nikon Z 400 lens
OBJECT: Messier 42, The Orion Nebula, Constellation Orion (Ori), apparent magnitude 4, apparent dimension 90’ x 60’, distance 1344 ly .
CALIBRATION: RA 05h 35m, DEC -5°21’, FOV 2,57°x 1,71°, Field radius 1,602°, Image pixel scale 2,50 arsec/px, Image size 3840 x 2560 px.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor Z 400/4,5 + TC2x = 800/9, Kolari H+ Clip in filter, UV lens filter, Dew heater strip, Sensor pixel scale, 1,12 arcsec/px, tracking mount iOptron HEM27EC - ipolar alignment, No auto guiding.
ACQUISITION: January 29, 2025, Struz, CZ, Subexposure 120s, f 9,0, ISO 6400, Interval 10 s, RAW-L, Lights 21x, Bias 30x, Flats 30x, Total exposure time 42 min. 1x light frame with ISO 800 for nebula center HDR adjustment. Night, no Moon, no wind, temperature 0° C, Backyard - Light pollution - Bortle 5.
STACKING AND POST PROCESSING: Stacking in Pixinsight (WBPP), post processing in Pixinsight ( DynamicCrop, CosmeticCorr, GradientCorr, ColorCalibration, BlurXTerm, NoiceXTerm, streching via HistogramTrans. Adobe Photoshop CC 2025 (final color, brightness tuning, resizing and export to jpg sRGB).
M 42, The Orion Nebula, taken by Nikon Z 400 lens
OBJECT: Messier 42, The Orion Nebula, Constellation Orion (Ori), apparent magnitude 4, apparent dimension 90’ x 60’, distance 1344 ly .
CALIBRATION: RA 05h 35m, DEC -5°21’, FOV 2,57°x 1,71°, Field radius 1,602°, Image pixel scale 2,50 arsec/px, Image size 3840 x 2560 px.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor Z 400/4,5 + TC2x = 800/9, Kolari H+ Clip in filter, UV lens filter, Dew heater strip, Sensor pixel scale, 1,12 arcsec/px, tracking mount iOptron HEM27EC - ipolar alignment, No auto guiding.
ACQUISITION: January 29, 2025, Struz, CZ, Subexposure 120s, f 9,0, ISO 6400, Interval 10 s, RAW-L, Lights 21x, Bias 30x, Flats 30x, Total exposure time 42 min. 1x light frame with ISO 800 for nebula center HDR adjustment. Night, no Moon, no wind, temperature 0° C, Backyard - Light pollution - Bortle 5.
STACKING AND POST PROCESSING: Stacking in Pixinsight (WBPP), post processing in Pixinsight ( DynamicCrop, CosmeticCorr, GradientCorr, ColorCalibration, BlurXTerm, NoiceXTerm, streching via HistogramTrans. Adobe Photoshop CC 2025 (final color, brightness tuning, resizing and export to jpg sRGB).