Brad Tucker, researcher at Australian National University's Research School of Astronomy and Astrophysics, explained why we don't get a lunar eclipse every lunar cycle. The eclipse will be noticeable from nations in Central Asia, Europe, Africa, South America, and Australia.
Such long duration of total lunar eclipses had earlier occurred on July 16, 2000, for totality duration of 1 hour 46 minutes and another one on June 15, 2011, for totality duration of 1 hour 40 minutes. The entire event, from the moment Earth's shadow starts to fall upon the moon's edge to the time when the bright full moon emerges, will take nearly 4 hours.
This week's "blood moon" will be the longest lunar eclipse of the century.
This happens because blue light undergoes stronger atmospheric scattering, so red light will be the most dominant color highlighted as sunlight passes through our atmosphere and casts it on the moon.
Unlike solar eclipses, lunar eclipses don't require special equipment for viewing. The moon will be faintly lit by light that is refracted from the Earth's atmosphere, which gives it a pale reddish colour.
Pastor John Hagee
Here's when totality will begin in the regions where the entire eclipse will be visible.
Dundonians will be well placed later this week to have a grandstand view of the longest lunar eclipse, or blood moon, of the century. The moon will appear slightly smaller because it is farther from the Earth. So, from start to finish, the moon spends almost 4 hours crossing under Earth's dark shadow. Dr Gregory Brown, of the Royal Observatory Greenwich, said: "We miss a section of the eclipse due to the moon being below our horizon when it starts".
'The sun's red light is scattered much less by air, and is bent by the earth's atmosphere in a process called refraction, travelling all the way through it to light up the moon's surface.
Be very afraid - a "blood moon" is coming, accompanied by Mars, the God of War, shining more fiercely than it has for years. This eclipse is represented as phase one of the partial eclipse, since a second partial eclipse will be witnessed after the total lunar eclipse ends. However, Indians might not be lucky because of the ongoing monsoon season in the country which might cause the moon to be blocked from view.
Unfortunately, the celestial show won't be visible in North America.More news: Woman shot dead amid stand-off at Los Angeles supermarket