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    Ground Based View of Venus

    Date: 04 Jun 2007
    Depicts: Venus
    Copyright: Jean-Pierre Prost

    Ground based images of Venus obtained by Jean-Pierre Prost, France, with a 212 mm Cassegrain telescope at f/34. South on Venus is down in the three images.

    Observing location
    Coordinates N 43° 39' / E 07° 00'
    Altitude 162 m
    Weather conditions
    Cloud cover none
    Seeing 7/10 for the 1st picture
    5/10 for the other two
    Transparency 6/10
    Wind none
    Temperature 23 °C
    Telescope Takahashi CN 212
    (a 212 mm Cassegrain used at F/34)
    Camera Lumenera SKYnyx 2.0M, with 7.5 μm pixels
    Camera Parameters
    Type SKYnyx2-0M b/w #6060356
    Bayer matrix MONO
    Image size 640×480
    Binning 1×1
    Pixel format 16Bit grayscale
    Capture frame speed .15 fps
    Exposure 60.0 ms
    Gain 17.1
    Gamma 1.00
    Contrast 1.00
    Brightness 1.00
    Focal length

    7208 mm

    Scale per pixel

    0.214'' / pixel

    Filter UV Schuler filter

    Processing
    Correction of background level (set to 0) for each raw picture, then stack of 2700 best images out of 4000 captured frames with IRIS software. Then wavelet processing with IRIS and finally Lucy Richardson processing with MAXIMDL software. Assembly of all the pictures in Photoshop.


    Last Update: 30 Aug 2007

    • Shortcut URL
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    • See also
    • Venus Amateur Observing Project

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