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Tonight: A Supermoon Lunar Eclipse

(via APOD; Video Credit: NASA’s GSFC, David Ladd (USRA) & Krystofer Kim (USRA) )

Tonight a bright full Moon will fade to red. Tonight’s moon will be particularly bright because it is reaching its fully lit phase when it is relatively close to the Earth in its elliptical orbit. In fact, by some measures of size and brightness, tonight’s full Moon is designated a supermoon, although perhaps the “super” is overstated because it will be only a few percent larger and brighter than the average full Moon. However, our Moon will fade to a dim red because it will also undergo a total lunar eclipse – an episode when the Moon becomes completely engulfed in Earth’s shadow. The faint red color results from blue sunlight being more strongly scattered away by the Earth’s atmosphere. Tonight’s moon can also be called a Harvest Moon as it is the full Moon that occurs closest to the September equinox, a time signaling crop harvest in Earth’s northern hemisphere. Total eclipses of supermoons are relatively rare – the last supermoon lunar eclipse was in 1982, and the next will be in 2033. Tonight’s supermoon total eclipse will last over an hour and be best visible from eastern North America after sunset, South America in the middle of the night, and Western Europe before sunrise.

Go big or go home

What is a Supermoon Lunar Eclipse?

We’ve told you that on Sept. 27 a supermoon lunar eclipse will occur in the U.S. And much of the world, but what does that mean?

One important note, is that this event can be referred to in many different ways: 

Supermoon Lunar Eclipse

Super Blood Moon

Harvest Moon Eclipse

Supermoon Eclipse

All slightly different names, but apply to the same spectacular event that will occur this weekend. 

Since it’s rare that both a supermoon and an lunar eclipse occur at the same time, let’s break it down. 

1) Supermoon

A supermoon is a full or new moon that falls closest to the fall equinox, and is at its closest approach to the Earth. This results in the moon appearing up to 14% larger in diameter.

2) Lunar Eclipse 

A lunar eclipse occurs when the moon passes directly behind the Earth into its shadow. This can give the moon a red tint.

3) A Supermoon Lunar Eclipse!

The combination of these two events does not happen very often. In fact, since 1900 a supermoon lunar eclipse has only happened 5 times! The last time this occurred was 1982, and if you miss the event this year, your next opportunity won’t come until 2033.

This year, the event will be visible from the Americas, Europe and Africa on the night of Sept. 27. Here’s a full schedule of the supermoon eclipse:

If it’s cloudy in your area on Sept. 27, don’t worry! NASA Television will be providing a live stream of the event, so you can tune in and enjoy the show. 

For more information and resources on the supermoon lunar eclipse, visit our page on NASA.gov.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

The last, but not least of starry scholastic month! 

This week’s entry: Black Holes

http://www.space.com/15421-black-holes-facts-formation-discovery-sdcmp.html

http://www.space.com/19339-black-holes-facts-explained-infographic.html

NDT just murdered B.o.B.

Handcrafted Jewelry Infused with the Spectacular Beauty of the Universe

Gotta love science ❤️

– Isaac Asimov, 1922 - 1992