Rare blue supermoon to rise soon: What to know [View all]
This year has brought a spectacular lineup of celestial shows for skywatchers. There was the total solar eclipse and the return of the devil comet in April, multiple nights of colorful northern lights, Mars and Jupiter “getting chummy,” and a soon-to-appear rare explosion.
On Monday, we’ll have the chance at another unique night sky sighting: a rare blue supermoon.
According to NASA, a moon is considered a supermoon when it is in its new or full phase, and within 90% of its closest approach to Earth. But, since new moons aren’t as easy to see as a full moon, we tend to pay more attention to the full moon version.
It’s hard not to, considering they’re the biggest and brightest of the year. The moon will be at its perigee, or closest point to Earth during orbit, with an average distance of about 226,000 miles. At its farthest distance, or apogee, it will be 253,000 miles from Earth.
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