March Moon at Perigee #2


   The Moon reaches perigee for the second time, (minimum distance from Earth), this month on Thursday March 30th. At that time the Moon will more or less be at a distance of 28.5 Earth diameters (363,853 km or 226,088 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 day of the perigee Moon the 3-day old waxing crescent Moon is over the western horizon at sunset local time, above to the left from Mars, and Mars sets a few hours after the Sun sets.

   *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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