Webcam pictures of Mars - 9 August 2003

Mars learning curve Index


Date: 9 and 10 August 2003 Telescope: 10 inch SCT Streaming speed in Astro-Snap: - around 4 fps
Times: 22:13. 23:09, 23:26 23:43, and 00:16 UT Camera: Logitech Quickcam Pro 4000 Processing: 100 frames stacked out of 1400
Observatory: Hartbeespoort Magnification: 3x Tele Vue Barlow Software: Astro Snap, K3 CCD Tools and Photoshop

Mars Apparent Diameter: 23.8 " Illuminated Fraction: 0.979 Distance from Earth: 0.3936 ua Central meridian: 74.05 to 104.04

The bitmaps for the pictures of Mars in the top row were captured using 20 percent gamma.
The bitmaps for the pictures of Mars in the top row were captured using 40 percent gamma.

The higher setting works much better - there is more dynamic range within the darker areas on Mars. (Translated in English: there is a greater range of lighter and darker areas when using 40 percent gamma.) Areas are not just dark or light, there is a larger range of areas getting darker and darker - this means more detail is visible for the pictures of Mars at the bottom.

Mars 7 August 2003 <<< - - -     Mars webcam pictures index        - - - >>> Mars 12 August 2003


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