May 13, 2009

Northern Arc

Galileo mosaic from Ciclops website

Here, after decades of hiding in plain view, is a good image map of the north polar region. LPOD loyalist Michael Packer has reminded me
that the Galileo probe to Jupiter acquired a number of synoptic views of the Moon that are available on the Ciclops website. Of course,
this North Pole is not as we seen it from Earth but is rolled out to make clear what we see all scrunched up at the limb. One noticeable
feature is that the linear ridges below and left of the North Pole (NP) are not really radial to Imbrium. It would be amazing if they are related
to the much more distant Orientale Basin. Nansen is just on the mean limb as seen from Earth and the terminator to the left is 5-10° beyond
the limb, allowing views of the Stonehenge-like Compton peak-ring basin and flat floored Fabry, both on the farside. Perhaps someone will
annotate this image with the names of the major features so it will be more useful.

Chuck Wood

Related Links
Rükl plate 2 - 7.
A similar Galileo view with coordinate grid.

Yesterday's LPOD: Almost Nothing

Tomorrow's LPOD: Molten Light

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