June Perigee Moon

   Our Moon reaches perigee, (closest distance from Earth), for this orbit on Thursday June 14th. At that time the Moon will be at a distance of 28.18 Earth diameters (359,500 km or 223,383 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*

   Thursday evening May 14th, shortly after sunset local time (8:26 CDT), look toward the western horizon for a conjunction between a thin 1.25-day young waxing crescent Moon and the innermost planet Mercury. The two will be about 2-3o apart but very low over the western horizon.

   *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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