'Blood moon' dazzles skygazers in century's longest eclipse
Paris: The longest "blood moon" eclipse this
century dazzled skygazers across the globe, coinciding with Mars'
closest approach in 15 years in a thrilling celestial spectacle.
As
Earth's constant companion slowly sailed across the skies, crowds
gathered around the world on Friday to catch a glimpse of the rare
phenomenon.
Beside
Lake Magadi, 100 kilometres southwest of the Kenyan capital Nairobi,
young members of the Maasai community watched the eclipse through a
high-powered telescope provided by a local couple.
People watch a blood moon as it rises in Rio de Janeiro, Brazil, on Friday. (Photo: AP) "Until
today I thought Mars, Jupiter and the other planets were in the
imagination of scientists," Purity Sailepo, 16, told AFP.
"But
now I've seen it I can believe it and I want to be an astronomer to tell
other people." Unlike with a solar eclipse, viewers did not need
protective eye gear to observe the rare display. For about half the
world, the moon was partly or fully in Earth's shadow from 1714 to 2328
GMT -- six hours and 14 minutes in all. The period of complete eclipse
-- known as "totality", when the moon appears darkest -- lasted from
1930 to 2113 GMT.
At the same time, Mars hovered near the moon
in the night sky, easily visible to the naked eye. Amateur astronomers
in the southern hemisphere were best-placed to witness the rare sight,
especially in southern Africa, Australia, and Madagascar, though it was
also visible in Europe, South Asia and South America.
More than
2,000 people including many children armed with binoculars gathered in
the Tunisian capital of Tunis. "I hope this eclipse will bring us
happiness and peace," said Karima, 46, without taking her eyes off the
sky. However, bad weather thwarted the cosmic display in several parts
of the world.
Widespread monsoon rainstorms and thick clouds hid
the moon across much of India and its neighbours, which should have had
a prime view.
Similarly, eager observers who had assembled on
cliffs and beaches in the English county of Dorset were left in the dark
due to an overcast sky.
"It's disappointing," Tish Adams, 67,
told AFP. "I took a few photos but there was nothing but a streak of
pink in the sky." Those gathered in Brazil's Rio de Janeiro had more
luck, snapping the red moon in the clear night sky with their phones and
cameras.
"I thought it was very pretty and I liked the planet
Mars even more, which you could see right next to the moon," said Talita
Oliveira, 34. Mars appeared unusually large and bright, a mere 57.7
million kilometres (35.9 million miles) from Earth on its elliptical
orbit around the sun.
The moon turns red during a total lunar eclipse, behind the Saentis in Luzern, Switzerland, on Friday. (Photo: AP) A
total lunar eclipse happens when Earth takes position in a straight
line between the moon and sun, blotting out the direct sunlight that
normally makes our satellite glow whitish-yellow.
The moon
travels to a similar position every month, but the tilt of its orbit
means it normally passes above or below the Earth's shadow -- so most
months we have a full moon without an eclipse.
When the three
celestial bodies are perfectly lined up, however, the Earth's atmosphere
scatters blue light from the sun while refracting or bending red light
onto the moon, usually giving it a rosy blush.
This is what
gives the phenomenon the name "blood moon", though Mark Bailey of the
Armagh Observatory in Northern Ireland said the colour can vary greatly.
It depends partly on "how cloudy or transparent those parts of
the Earth's atmosphere are which enable sunlight to reach the moon", he
told AFP.
"During a very dark eclipse, the moon may be almost invisible."
The
long duration of this eclipse is partly due to the fact that the moon
will make a near-central passage through Earth's umbra -- the darkest,
most central part of the shadow.
The moon was also at the
farthest point on its orbit from Earth, making its movement across the
sky slower from our perspective, thus spending longer in the dark.
NASA, meanwhile, called out social media hoaxers claiming that Mars would appear as big as the moon during the eclipse.
"If
that were true, we'd be in big trouble given the gravitational pulls on
Earth, Mars, and our moon!" the NASA website stated.
Mars
instead appeared as a very bright star. "In the middle of a lunar
eclipse it can look as if a red planet has taken up residence near the
Earth -- they are both eerie and beautiful," said Robert Massey of the
Royal Astronomical Society in London.
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