Penumbral Lunar Eclipse

Click on graphic to see it full size.

Click on graphic to see it full size.

   This Friday, 18 October, the full Moon will pass through the outer and fainter part of the Earth’s shadow in what is known as a Penumbral Lunar Eclipse. This is not a total eclipse where the whole Moon passes through the Earth’s shadow, nor is this eclipse one that will darken the Moon as if the Moon had passed through the darker umbral shadow. However about 3/4’s of the Moon will be within the penumbra and so around the time of mid-eclipse the Moon should be less bright enough (dimmer but not darker if that makes any sense) for an observer to notice the eclipse.
Mid-Eclipse

Mid-Eclipse

   The timing for the eclipse will be such that for all of Africa and most of western Europe the full Moon will have already risen before the eclipse begins. From North and South America the eclipse will start before the Moon rises. From my location at 94oW, in the Midwest United States, the Moon will be at mid-eclipse shortly after the Moon rises as these two graphics show.

Eclipse Starts:
21:50 UT (4:50 pm CDT)
Mid-Eclipse:
23:50 UT (6:50 pm CDT)
Eclipse Ends:
01:50 UT (8:50 pm CDT)

Click here for additional information about this penumbral lunar eclipse from the NASA eclipses web site.As of this morning this NASA web site, and all other NASA as well as U.S. government web sites are again available.

   
   
   Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.