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Explosions in the Sky - M42 Orion & Running Man Nebula (LHaOS) & ASI183MM First Light
05-01-2019
OTA: SR 60mm ED APO Doublet, f/6.0, 360mmL
Imaging: ASI183MM Pro, w/QHY5LII-M on MiniGuideScope
Mount: Sky Adventurer
Filters: Optolong Ha (7nm), Oiii (6,5nm), Siii (6.5mm)
Sequencing & Aiding Tools: PHD2, APT
Integration (Lights): 30s x 10 (L), 30s x 15 (Ha), 30s x 15 (Oiii), 30s x 3 (Siii)
Calibrations: 15 Darks, 15 Biases. Flats 0
PP: Pixinsight, GIMP 2.0
The first shot taken for 2019, a great nebula in Orion revisited, taken after a brief respite from clouds and local storm systems.
First light for the ASI183MM. This is a test image to ensure all running systems and processes are integrated proper prior to streamlining. Goofed on Siii data due to PHD2 guiding failure but it turned out well enough.
Subs were taken at approximately 15 degrees before its zenith, in a class 8 bortle city sky. 2-3 stars from the M45 cluster was visible via naked eye at that time.
Technical notes:
The ASI183MM has an equivalent crop factor of 2.7, which translates into the current image taken at 972mmL. If I'm wrong on this please correct me.
Guiding on the SA, with PHD2 assistance was at an est. 50-100RMS, resulting in minor star trails for a 30s exposure.
The single axis guiding posed the biggest challenge for excellent PA.
Amp-glow for the 183MM sensor is quite pravelent, at the lower right side of this image. Doubling down on calibration frames should be enough to correct during post processing.
Explosions in the Sky - M42 Orion & Running Man Nebula (LHaOS) & ASI183MM First Light
05-01-2019
OTA: SR 60mm ED APO Doublet, f/6.0, 360mmL
Imaging: ASI183MM Pro, w/QHY5LII-M on MiniGuideScope
Mount: Sky Adventurer
Filters: Optolong Ha (7nm), Oiii (6,5nm), Siii (6.5mm)
Sequencing & Aiding Tools: PHD2, APT
Integration (Lights): 30s x 10 (L), 30s x 15 (Ha), 30s x 15 (Oiii), 30s x 3 (Siii)
Calibrations: 15 Darks, 15 Biases. Flats 0
PP: Pixinsight, GIMP 2.0
The first shot taken for 2019, a great nebula in Orion revisited, taken after a brief respite from clouds and local storm systems.
First light for the ASI183MM. This is a test image to ensure all running systems and processes are integrated proper prior to streamlining. Goofed on Siii data due to PHD2 guiding failure but it turned out well enough.
Subs were taken at approximately 15 degrees before its zenith, in a class 8 bortle city sky. 2-3 stars from the M45 cluster was visible via naked eye at that time.
Technical notes:
The ASI183MM has an equivalent crop factor of 2.7, which translates into the current image taken at 972mmL. If I'm wrong on this please correct me.
Guiding on the SA, with PHD2 assistance was at an est. 50-100RMS, resulting in minor star trails for a 30s exposure.
The single axis guiding posed the biggest challenge for excellent PA.
Amp-glow for the 183MM sensor is quite pravelent, at the lower right side of this image. Doubling down on calibration frames should be enough to correct during post processing.