K3's Astronomy - Moon
"When I consider your heavens, the work of your fingers, the moon and the stars which You have set in place, what is Man that You are mindful of him?" -- Psalm 8:3,4

Moon In General (with 80mm achromatic refractor)

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Moon 17.02.2003 22:40 (21:40 UT)
Moon Age: 16d 11h

Resolution: 7.74 arcsec/pixel
Camera: Nikon Coolpix 995, f=23.4mm
Telescope: 80mm F5 Refractor, 25mm eyepiece afocal
Result focal length: 374.4mm (~46X Zoom)
Result focal ratio: F4.68
Exposure: 23x1/500s (ISO100, auto white balance)
Camera control: manual with self-timer
Processed by K3CCDTools, then in Corel PhotoPaint.
Seeing: clear, but some clouds

Nikon digital camera offers much better contrast and colors than webcam (look also at my tests - Still Digital Camera versus Webcam). This photo was made with substantial help of my wife, who helped me to take out the scope with mount in front of our block of flats and saved me at least 2 hours of sleep - I didn't need to wait for moon to appear at our balcony side :-).

1, 23 frames stacked in K3CCDTools
2, Unsharp mask (2, 0, 300) in K3CCDTools
3, Reduced saturation in edge areas of the moon (by using circular mask) in Corel PhotoPaint - to suppress chromatic aberration caused by refractor
4, Enhanced contrast (50%) in Corel PhotoPaint
5, Resized to various sizes in Corel PhotoPaint

Back to Main Moon Page

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Last Update: 03.03.2003