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193'000 stars and a 108 pannels mosaic for the Orion Challenge

Technical card

Imaging telescope or lens: Takahashi FSQ106ED

Imaging camera: Alta U8300

Mount: 10micron GM2000 HPS II GM2000

Guiding telescope or lens: Takahashi FSQ106ED

Guiding camera: Atik 16IC

Software: PixInsight 1.8MaximDL 5Adobe Photoshop CS5

Filter: Ha 5nm

Accessory: Atik EFW2 Filter Wheel

Resolution: 12588x13056

Dates: Jan. 3, 2016

Frames: 790x600"

Integration: 131.7 hours

Avg. Moon age: 23.27 days

Avg. Moon phase: 38.17% job: 903080

Locations: Observatoire personnel, Vérossaz, Valais, Switzerland


Here are some figures:

790 raw images of 10 minutes each
24.2 GBytes of acquired data
131h40 total exposure during 20 nights from 10/30/2015 to 30/12/2015
A full resolution of 25177x26113 pixels for a total of 657 MPixels
Un champ de 14.7° par 15.2°
50 bias + 50 dark + 50 flats for calibration in CCDStack


Takahashi FSQ106ED @f/5 530mm focal length with ONAG XT (, Apogee Alta U8300 monochrome @-30°C and Astrodon narrowband H-alpha 5nm filter on 10micron GM2000 HPS II

Software: MaximDL to capture - SkySurveyor to calculate mosaic tiles and to automatically move the scope to the next tile coordinate - SharpLock to keep the optical train perfectly focused - CCDStack to calibrate, register, normalize, data reject and combine - Registar and PixInsight for mosaic assembly - Photoshop CS5 and PixInsight for non-linear streching and HDR processing.



David Lindemann


193'000 stars and a 108 pannels mosaic for the Orion Challenge , 


        David Lindemann