Closest Supermoon Since 1948 Arrives Monday:
Gerard Julien/AFP/Getty Images
Its official name is the perigee-syzygy, meaning the moon is both full and closest to Earth. But many call it the supermoon, and Monday's version will be a "showstopper," NASA says. It's the nearest supermoon in almost 70 years — and we won't see another like it until 2034.
"When a full moon makes its closest pass to Earth in its orbit it appears up to 14 percent bigger and 30 percent brighter, making it a supermoon," NASA says.
Here are five things to help you enjoy this supermoon:
When To See It
In the U.S., we'll get three chances to see the moon at its brightest and biggest, from around sunset Sunday to Monday's predawn and sunset. On both days, the moon will rise around sunset.
"The difference in distance from one night to the next will be very subtle, so if it's cloudy on Sunday, go out on Monday," says Noah Petro, deputy project scientist for NASA's Lunar Reconnaissance Orbiter mission. "Any time after sunset should be fine. Since the moon is full, it'll rise at nearly the same time as sunset, so I'd suggest that you head outside after sunset, or once it's dark and the moon is a bit higher in the sky."
The moon will reach its orbital perigee shortly before sunrise Monday, at 6:22 a.m. EST; it'll officially become full at 8:52 a.m. EST.
What's With That Name?
"It's a recent term to enter pop culture," Jackie Faherty says of the supermoon label. She's an astronomer at the American Museum of Natural History.
read more: http://www.npr.org/sections/thetwo-way/2016/11/13/501854717/closest-supermoon-since-1948-arrives-monday-tips-on-seeing-and-photographing-it