July Moon at Apogee

13july-apogee_moon   Our Moon reaches apogee, (greatest distance from Earth), on Wednesday July 13th. At that time the Moon will more or less be at a distance of 31.70 Earth diameters (404,269 km or 251,201 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*

*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?”


   
   The 9.6-day old waxing gibbous Moon rises in mid-afternoon and is near the planet Mars over the southwestern horizon after sunset.

   
   
   

Caution: Objects viewed with an optical aid are further than they appear.
Click here to go to the Qué tal in the Current Skies web site for more observing information for this month.

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