July Perigee Moon #2

   The Moon reaches perigee, (minimum distance from Earth), this month on Wednesday July 27th. At that time the Moon will more or less be at a distance of 28.98 Earth diameters (369,662 km or 229,697 miles) from the Earth.
   Does our Moon actually go around the Earth as this graphic shows? From our perspective on the Earth the Moon appears to circle around the Earth. However, in reality, the Moon orbits the Sun together with the Earth*


On the morning of the 27th the thin 23-day old last quarter Moon rises around midnight local time, and is west from the open star cluster the Pleiades.
   
   
   
   
   
   
   *Click here to read my 2006 Scope on the Sky column “The Real Shape of the Moon’s Orbit”. (PDF)

   Read this very informative article about the Earth-Moon system and their orbital motions, written by Joe Hanson. “Do We Orbit the Moon?”

   
   
   

Click here to go to the Qué tal in the Current Skies web site for monthly observing information, or here to go to bobs-spaces.

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