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Technical card

Resolution: 9020x6538 job: 859762

RA center: 84.337 degrees

DEC center: -4.004 degrees

Pixel scale: 2.087 arcsec/pixel

Orientation: 90.144 degrees

Field radius: 3.228 degrees

Locations: Observatoire personnel, Vérossaz, Valais, Switzerland


Here are some figures:
9 panels mosaic
194 H-alpha raw images of 10 minutes each
81 Lum raw images of 5 minutes each
8.5 GBytes of acquired data
39h05 total exposure during 6 nights from 10/30/2015 to 11/08/2015
A full resolution of 9020x6538 pixels for a total of 59 MPixels
A field of 5.2° per 3.8°
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 and TrueBalance Lum filters 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 - Photoshop CS5 and PixInsight for non-linear streching and HDR processing.



David Lindemann

Sky plot

Sky plot


My first contribution for the Orion Challenge, David Lindemann