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Comet 46P/Wirtanen, 8 december 2018, 


            Kees Scherer
Comet 46P/Wirtanen, 8 december 2018

Comet 46P/Wirtanen, 8 december 2018

Technical card

Imaging telescope or lens:Skywatcher 100 Esprit APO F5.5

Imaging camera:QHYCCD QHY16200A Mono

Mount:10Micron GM2000HPS II

Software:Astro Pixel ProcessorPixInsight 1.8


Accessory:ScopeDome 2M

Resolution: 1809x1398

Dates:Dec. 8, 2018

B: 20x30" (gain: 1.00) -20C bin 1x1
G: 63x30" (gain: 1.00) -20C bin 1x1
R: 20x30" (gain: 1.00) -20C bin 1x1

Integration: 0.9 hours

Darks: ~30

Flats: ~25

Bias: ~256

Avg. Moon age: 1.12 days

Avg. Moon phase: 1.40%

Mean SQM: 20.80 job: 2408877

RA center: 46.407 degrees

DEC center: -3.979 degrees

Pixel scale: 2.229 arcsec/pixel

Orientation: 359.766 degrees

Field radius: 0.708 degrees

Locations: Knight Observatory,Quinta Castelo Novo, Serra de Tomar, Portugal

Data source: Backyard


AstroPixelProcessor: Calibration of the sub frames with Bias frames, Dark frames, flat frames and the Bad Pixel Map.

Pixinsight: StarAlignment, CometAlignment, Separate ImageIntegration for R, G, B for stars and comet. BackgroundCorrection, Histogramtransformation (Black point clipping for starcombined image), Pixelmath combination for starimage and Comet image, ,Platesolver script, Arcsinh Stretch, histogram stretch, curves adjustments, Image annotation script, annotations,



Kees Scherer
License: Attribution Creative Commons

Sky plot

Sky plot


Comet 46P/Wirtanen, 8 december 2018, 


            Kees Scherer

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