May 4, 2007

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Colorful Friday

image by John McConnell.

How can I resist a colorful view of Serenitatis, especially one taken with a 3″ ETX? And the picture is remarkably informative. First, the color comes just from exaggerating the saturation in Registax - its something any imager can try. I am impressed by the many different hues of color, and the well-known ultra-sharp color boundary along southern Serenitatis. Shadowing conveys an amazing feeling that the mare lavas flow onto the Imbrium ejecta on the basin’s west side, and as John commented correctly, it looks like the Serentitatis dark edge lavas poured out into Lacus Somniorum. I have always wondered why the northern and western sectors of Serenitatis have much less distinct color boundaries than the opposite sides. An interesting observation is that the Bessel ray coincides with a mare color boundary. This is at least partially correct, but a calibrated color image doesn’t show such a strong boundary, hinting that it may be a spurius effect, perhaps due to changing Sun angle. But most of the boundaries are real, and its a fun image!

Chuck Wood

Technical Details:
March 26th 2007. ETX 90mm + Philips Toucam Pro. 342 frames in Registax, and processed slightly (contrast 5%) in Paint Shop Pro. Exaggerated the color to 80% in Registax.

Related Links:
Rükl charts 13, 14, 23 & 24
Another colorful view

Yesterday's LPOD: A 42 Year Old Letter

Tomorrow's LPOD: Schiller Times Six


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