Archive for August 11, 2014

08/11/2014 – Ephemeris – The Moon’s terminator is now the sunset line

August 11, 2014 Comments off

Ephemeris for Monday, August 11th.  The sun rises at 6:40.  It’ll be up for 14 hours and 13 minutes, setting at 8:54.   The moon, 1 day past full, will rise at 9:15 this evening.

After the full moon the shadow action moves from the eastern or left edge of the moon to the western or right edge of the moon, or if the moon’s low in the east, to the upper right edge.  For the first two weeks of the lunar cycle, from new to full we were watching the sunrise terminator slowly sweep across the face of moon.  Now, after full the sunrise terminator is sweeping across the Moon’s far side, and the sunset terminator is beginning to sweep across the near side, our side of the Moon.  Tonight the terminator is approaching the small Sea of Crises on the upper right of the Moon.  By tomorrow night the terminator will be half way across that sea.  By Wednesday it will be lights out for the Sea of Crises for two weeks.

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.


Moon tonight

The moon at 10 p.m. tonight, August 11, 2014. Created using Virtual Moon Atlas.

Moon tomorrow night

The moon at 10 p.m. tomorrow night, August 12, 2014. Created using Virtual Moon Atlas.