This Year's Only Super Moon Visible Sunday


The year 2017 has only one super moon, and it happens Sunday night.

Posted: Dec. 1, 2017 6:09 PM
Updated: Dec. 1, 2017 6:15 PM

The "Super Moon" is a term we have heard more and more in the past few years. Some years recently have had multiple Super Moons. This year, we only have one. It will be visible Sunday night. 

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What is a Super Moon? Well, we know the moon orbits around our planet. The moon takes just over 28 days, or roughly a month, to complete one orbit. The orbit does not trace a perfect circle around the earth. Rather, the orbit is elliptical and shaped somewhat like an egg with Earth offset from the center. That means the moon is closer to Earth at one point in the orbit and farther from Earth at the opposite point in the orbit. The moon's closest pass to Earth is called the moon's perigee. The farthest pass of the moon from Earth is the moon's apogee. 

When the full moon happens at the same time as the moon's perigee, we have the Super Moon. The close proximity to the earth makes that full moon appear larger and brighter than normal.

The best time to view is when the moon is low on the horizon. That will be just after sunset Sunday, which happens just after 4:30 PM, or just before sunrise Monday, which happens just after 6:30 AM. 

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