Published: Thu, July 26, 2018
Research | By Wilma Wheeler

Once in a century lunar eclipse

Once in a century lunar eclipse

"The Moon is not always in flawless alignment with the Sun and the Earth, so that is why we do not get a lunar eclipse every lunar cycle", Brad Tucker, an astronomer with the Australian National University's Research School of Astronomy and Astrophysics, said in a statement. The eclipse will be visible all across the globe, except North America. Totality - when it passes the darkest part of Earth's shadow - will last for about one hour and 43 minutes. The lunar passage will mark the total eclipse of the moon - a celestial event which happens about twice a year on an average.

The Royal Astronomical Society said: 'Sometimes the eclipsed moon is a deep red colour, nearly disappearing from view, and sometimes it can be quite bright.

"The penumbral eclipse will begin on July 27 at 10:15pm with its partial phase will kick off at 11:24pm and the total eclipse will be visible at 12:30am on July 28", Rashid said.

The only light reflected from the lunar surface has been refracted by Earth's atmosphere.

In fact, such a solar eclipse had last occurred on December 13, 1974, and the next one like it will be seen only in 2080.

Short wavelengths like blue and violet bounce off the Earth, while longer wavelengths like red and orange pass through, leading the moon to glow in those colours.

A'super blue blood moon seen in Rosaria near Santa Fe
A'super blue blood moon seen in Rosaria near Santa Fe

- Why the Moon turns red during an Eclipse? It should be visible in Indian cities like Delhi, Pune, Mumbai, etc, but the weather forecast will end up playing a role in this.

Friday will bring the longest lunar eclipse of the 21st century.

After about two hours the moon will turn red.

The outcome is generally that a solar eclipse is only seen by a relative few who fall beneath the moon's masking orb. 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". Sorry, North America, you'll need to watch online instead. Mars will be nearing its closest approach to Earth since 2003, making it look very bright in the sky.

On January 31st, the world witnessed its first lunar eclipse of the year, where the moon appeared red in colour and much bigger in size. During an annular eclipse, NASA uses ground and space instruments to view the corona when the moon blocks the sun's glare.

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