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100'000 stars and 54 pannels mosaic for the Orion Challenge, 


            David Lindemann

100'000 stars and 54 pannels mosaic for the Orion Challenge

Technical card

Imaging telescope or lens:Takahashi FSQ106ED

Mount:10micron GM2000 HPS II GM2000

Guiding telescope or lens:Takahashi FSQ106ED

Guiding camera:Alta U8300

Filter:Ha 5nm

Accessory:Atik EFW2 Filter Wheel

Resolution: 26252x12430

Dates:Dec. 14, 2015

Frames: 479x600"

Integration: 79.8 hours

Avg. Moon age: 3.05 days

Avg. Moon phase: 10.14% job: 888196

Locations: Observatoire personnel, Vérossaz, Valais, Switzerland


English text follow

Voici quelques chiffres:

479 images brutes de 10 minutes chacune
14.5 GBytes de données capturées
79h50 d'exposition sur 12 nuits du 30.10.2015 au 14.12.2015
Une résolution de 26252x12430 pixels pour un total de 324 MPixels
Un champ de 15.6° par 7.4°
50 bias + 50 dark + 50 flats pour la calibration dans CCDStack

Here are some figures:

479 raw images of 10 minutes each
14.5 GBytes of acquired data
79h50 total exposure during 12 nights from 10/30/2015 to 14/12/2015
A full resolution of 26252x12430 pixels for a total of 324 MPixels
A field of 15.6° per 7.4°
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
License: None (All rights reserved)


100'000 stars and 54 pannels mosaic for the Orion Challenge, 


            David Lindemann