November 26, 2017

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Apennine Snows

Originally published May 21, 2008 LPOD-May21-08.jpg
image by Kaguya/Selene, JAXA.

Looking like a poster for an exotic ski resort, this remarkable image was constructed from high resolution stereo images taken with the Terrain Camera (TC) on the Kaguya/Selene spacecraft currently orbiting the Moon. I presume the process was to first create a digital terrain model from the stereo images, then drape a TC image over that, and finally view from a perspective never seen by the Apollo 15 crew. The tall peak is Mount Hadley Delta, with Saint George crater out of view just around the left corner, and beyond that is the Apollo 15 landing site. This is a straight stretch of the Hadley Rille, until it heads into the Hadley Delta mass and abruptly turns left, hugging the mountain edge. The rille probably formed with a flat floor (from the transported lavas), and the vee-shaped talus slope resulted from downslope movement of debris. The top edge of the rille shows the broken basalt lava flows - some boulders from the flows are visible that rolled down to the rille's floor. In fact, do you see the boulder that bounced and rolled half way down the slope, with its track behind it?

Chuck Wood

Technical Details
Thanks to Junya Terazono for making known this posting on the Japanese language version of the JAXA Kaguya website.

Related Links
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Tomorrow's LPOD: Hitting the Moon


1) Sometimes I think it would be nice to put some image of a person or house or some other large common object to get a sense of scale. Of course this would change the photo a bit. Aethrae, Andrew Martin SFO

2) Andrew, in the extraordinary Lunar Sourcebook; A User's Guide To The Moon (Heiken, Vaniman, French) there's an orbital photograph of a region near (or at) Mare Crisium, with a drawing of Mount Fuji on it, to get an idea of the scale (can't remember the number of the page on which it was printed).
Wonderful view of the Hadley region! Thanks JAXA!
-- Danny C.

3) It looks like an old mountain road or part of stage Rally Acropolis ;)


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