February 20, 2015
Last Quarter
Originally published February 20, 2004
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Image Credit: Heung Wah |
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Last Quarter The last week of each lunation is largely unobserved by Earthlings, most of whom sleep through the night. The last quarter Moon rises about midnight and is at its highest at sunrise. At last quarter the sunset line is near some of the most fascinating scenery on the Moon - from Plato and the Apennines in the north, pass the double threesome (Ptolemaeus, Alphonsus & Arzachel and Purbach, Regiomontanus & Walter) near center, and Tycho and Clavius down south. Just at the west limb, if the librations are favorable as on October 18, 2003 when this mosaic was captured, you can see the dark maria ribbons and central patch of Orientale basin. We are so lucky that humanity didn't arise on Mars. We have a real Moon with endless fascination, rather than two puny pip-squeaks, one of which sets in the east! Technical Details: Click here for full resolution view (1.7 MB). Related Links: Yesterday's LPOD: Max Goes to the Moon Tomorrow's LPOD: We're on our Way, Houston! |
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