The moon will turn blood red in Canberra early on Saturday morning

The eclipse will not be visible from North America

There are many good reasons to gaze at the moon, but this week will provide an extra-special one.

On July 28 (AEST), the longest lunar eclipse of the 21st century will be visible across much of the globe, including Australia.

Even if you're in North America, you can still watch the July 27 eclipse online through the Virtual Telescope Project's website, which will start livestreaming the eclipse at 2:30 p.m. Unlike a solar eclipse, the lunar event can be viewed without wearing protective eye gear. At the moment when the French will see the full moon appear, she will be already taking reddish colors.

This time, the moon would pass right through the centre of the earth's shadow which makes it the first central lunar eclipse after the one in June 2011, B G Sidharth, Director of BM Birla Science Centre here said.

A partial lunar eclipse is essentially when a bit of the moon enters the Earth's umbra (as opposed to the whole of the Earth's umbra). This means it will be passing through space at a point where the cone of Earth's shadow is wider, making the eclipse last longer. A fraction of those are total lunar eclipses.

A lunar eclipse occurs when the Earth moves between the sun and the moon, completely blocking direct sunlight from reaching the moon, which gives the moon an orange/red hue that earns it the moniker of a "blood moon".

The total phase of the "blood moon" eclipse of July 27 will last 1 hour and 43 minutes, during which Earth's natural satellite will turn a spectacular red or ruddy-brown color. The moon, closest to the center of the shadow, will showcase the maximum eclipse at 1:51 am. In a tenuous interpretation of the Bible, a select group of onlookers are propounding the belief that Friday's lunar eclipse will bring with it an apocalypse. The best piece of the lunar overshadowing occurs at 51 minutes 44 seconds past midnight (IST), it included. The partial eclipse of the Moon will begin at 11:54 pm (Indian Standard Time) on July 27.

Moonlight is nothing but sunlight reflected by the moon.

During the lunar eclipse, the moon will appear red.

It occurs because of a phenomenon called the Rayleigh scattering, which is also what gives sunrise and sunset its orange-red glow. So white and the blue spectrum is scattered, but the red remains.

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