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 Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky

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Neferti
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Neferti

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Join date : 2018-07-15

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PostSubject: Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky   Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky EmptyFri 27 Jul 2018, 8:19 am

You'll need to set your alarm clock if you want to see this century's longest lunar eclipse on Saturday morning.

If you can brave the early morning winter chill, you'll be rewarded with a spectacular red moon that fades into the western horizon as dawn approaches.

Weather permitting, the eclipse will be visible right across Australia at the same time, starting around 4:24am AEST (and equivalent local times) on July 28.

And to top it all off, the moon will be joined by Mars, which will be at its brightest in 15 years, said Tanya Hill, an astronomer at the Melbourne Planetarium.

"You'll have a red moon and a red planet. It's a lovely coincidence," Dr Hill said.

A total lunar eclipse occurs when the Earth's shadow moves across the Moon, blocking out light from the sun.

As the shadow glides across the surface of the Moon, it takes on a distinctive red glow — an effect caused by the bending of light in Earth's atmosphere.

The period of totality during this eclipse, when Earth's shadow is directly across the moon and it is at its reddest, will last 1 hour, 42 minutes and 57 seconds.

"It's quite a long eclipse. You're only about three minutes short of maximum," Dr Hill said.
When to watch the eclipse

The eclipse will be visible at the same time all over the world, except in North America.

"It's visible everywhere where it's night," Dr Hill said.

What you'll see will depend on your time zone — and what time the sun rises in your location.

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What it will look like where you live

If you live in the eastern states, you'll see the fully eclipsed Moon sitting right on the western horizon before it slips out of sight in the dawn twilight.

"That will be a really nice effect, to see this low-hanging Moon totally eclipsed and lovely and red in the western sky as we're getting up in the morning," Dr Hill said.

Just how much of the total eclipse you'll see depends upon how far north you live.

"The Moon sets earlier as you move north," she explained.

Unfortunately, if you live in New South Wales, the ACT or Queensland you will miss out on the final minutes of the total eclipse (so technically it's not the longest totally eclipsed moon you'll actually see this century).

If you live in Western Australia you'll not only see the entire total eclipse, you'll also see the Moon come out of the eclipse before it slips below the horizon.

During totality, the Moon will be set against a dark sky and appear redder than in the pre-dawn twilight in the eastern states.

Whether you're in the east or west, the Moon will look bigger than usual as it sits on the horizon thanks to an optical illusion.

"It's our brains tricking us into making us think the Moon has become bigger," Dr Hill said.

And while telescopes and binoculars will give you a close-up view of the shadow and craters, you don't need any special equipment to see it.

"Every lunar eclipse is a pretty amazing phenomenon, so go and have a look at it," Dr Hill said.

http://www.abc.net.au/news/science/2018-07-27/longest-lunar-eclipse-to-shine-bright-red-in-australian-sky/9959326
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Veritas

Veritas

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Join date : 2018-07-17

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PostSubject: Re: Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky   Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky EmptyFri 27 Jul 2018, 11:28 am

Any bets on it being marred by cloud cover?
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Valkie



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Join date : 2018-07-17

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PostSubject: Re: Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky   Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky EmptyFri 27 Jul 2018, 7:26 pm

Too early for me on a Saturday morning

I'll wait for the next one
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PostSubject: Re: Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky   Longest lunar eclipse of the 21st century to shine bright red in Australia's early morning sky Empty

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