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Un-Super Moon
updated: Dec 17, 2013, 8:30 AM

By Chuck McPartlin

Here is a comparison of Monday night's apogee Full Moon with the "Super" perigee Full Moon of June 22. At the time the photos were taken, the Moon was at distances of 249,134 miles, and 221,274 miles, respectively. The same camera/lens/aperture/exposure settings were used for both.

The first image is a composite with the apogee Moon on the left and the perigee Moon on the right, and in the second image they have been superimposed, to better show the size difference.

The diameter of the Super Moon, measured and averaged over three chords in of the original image in Photoshop, was 604 pixels. The same process for the Un-Super Moon gave a diameter of 544 pixels. The Super Moon was 11% wider.

The distances have a 12.6% difference, so the pixel ruler wasn't horribly inaccurate.

The Chinese "Jade Rabbit" rover landed near the left edge in these views, in Sinus Iridum.

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