Wednesday, September 15, 2004
Explanation:
Jim Phillips' low sun image of Posidonius
is one of the most dramatic lunar images I have every seen, and its publication in
the first 10 days of LPOD's history set a high standard. The standard has now been
raised! Wes Higgins' new image under a higher sun reveals more of the crater's floor
and more features that I have never seen. Compared to the Lunar
Orbiter IV view Wes' image has slightly higher resolution and better image quality.
I was surprised to see that the very sinuous rille that is prominent on the west
(left) side of the floor appears to continue against the north inner rim much further
than I thought. An Apollo 15 image shows the rille along the wall but that image
doesn't continue as far east as Wes' does. And if you look near the 3 o'clock position
(at the east wall) there appears to be a segment of a sinuous rille crossing the
moat from the wall to the inner curved ring. I don't know if we can reasonably hope
for higher resolution views than this one but it would be nice to see what is really
happening along in the moat along the eastern wall. Oh yes, check out the tiny rilles
on the tilted central plateau too!
—
Chuck
Wood
Technical Details:
September 3, 2004, 14.5 Starmaster DMK-21F04 Firewire camera, 30fps,stack of 1444
frames from 2800.
Related Links:
Lunar
Orbiter IV View
