When is the best time to see Monday’s super moon?

Friday, November 11, 2016 3:33 pm

By Mike Atkinson | Drive Producer and Public Relations Officer

On Monday night the moon will fill the sky as part of the largest super moon for more than 70 years.

Monday’s moonrise in Perth will be at 6:33pm. The supermoon should be visible form anywhere in Australia, cloud permitting.

NASA says this month’s super moon will appear 30 percent brighter and 14 percent larger than a typical full moon.

supermoon

 

A super moon occurred on October 16 but moon gazers can expect two more super moon appearances on November 14 and December 14.

It is not expected to appear again until November 25, 2034.

What is a super moon?

The moon’s orbit around the Earth is not quite a circle but an ellipse – a kind of squashed circle.

Ellipses are described mathematically with two foci, one at either side of the centre. When an orbit is elliptical, the big body in the middle (the Earth in this case) sits at one of those two foci.

Since the Earth is sitting off to one side of the ellipse, the moon is inevitably closer to the Earth when it passes that side, and further away as it passes the other side.

When it is at the close side (called “perigee”), and it is a full moon, it’s called a supermoon. (That name was actually made up in the pseudoscience field of astrology but it has entered the common lexicon.)

nasa-supermoon

Photo Credit: NASA

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