Here's A Live Feed Of The Century's Longest Lunar Eclipse

A 2010 lunar eclipse (Photo: DVIDSHUB, Flickr)

The longest lunar eclipse of the 21st century is starting this morning at around 4:30AM AEST.

This eclipse is just a few minutes shy of the longest lunar eclipse possible. It’s the longest lunar eclipse of the century, but there was a longer one in 2000, so it really depends on what your definition of “century” is (technically, the 21st century is defined as 2001 to 2100).

Here’s a live feed from timeanddate.com Slooh and the Virtual Telescope Project are also offering feeds from several telescopes around the world.

Eclipses occur when the Moon passes into the Earth’s shadow. It appears red for the same reason that sunsets look red — the Earth’s atmosphere scatters different colours in different amounts, and more red light than than blue light makes it around the Earth to the Moon.

The Moon doesn’t pass behind Earth’s shadow every full moon because its orbit is inclined with respect to the Earth’s orbit around the Sun. Eclipses only occur when the Moon, Sun and Earth are in just right positions so that the Moon and Sun’s orbits intersect. More about that here.

And please don’t call it a “blood Moon” as if it were some kind of spooky omen. It’s 2018, and we all know what a lunar eclipse is.

Still, any reason is a good reason to look at the Moon.

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