Skywatchers along a narrow band from west Africa to the Arabian Peninsula, India and the Far East witnessed Sunday a dramatic “ring of fire” solar eclipse.
So-called annular eclipses occur when the Moon — passing between Earth and the Sun — is not quite close enough to our planet to completely obscure sunlight, leaving a thin ring of the solar disc visible.
They happen every year or two, and can only been seen from a narrow pathway across the planet.
Sunday’s eclipse arrived on the northern hemisphere’s longest day of the year — the summer solstice — when Earth’s north pole is tilted most directly towards the Sun.
The “ring of fire” was first visible in northeastern Republic of Congo from 5:56 local time (04:56 GMT) just a few minutes after sunrise.
This is the point of maximum duration, with the blackout lasting 1 minute and 22 seconds.
Arcing eastward across Africa and Asia, it reached “maximum eclipse” — with a perfect solar halo around the Moon — over Uttarakhand, India near the Sino-Indian border at 12:10 local time (0640 GMT).
More spectacular, but less long-lived: the exact alignment of the Earth, Moon and Sun was visible for only 38 seconds.
Skywatchers along a narrow band from west Africa to the Arabian Peninsula, India and the Far East witnessed Sunday a dramatic “ring of fire” solar eclipse.
So-called annular eclipses occur when the Moon — passing between Earth and the Sun — is not quite close enough to our planet to completely obscure sunlight, leaving a thin ring of the solar disc visible.
They happen every year or two, and can only been seen from a narrow pathway across the planet.
Sunday’s eclipse arrived on the northern hemisphere’s longest day of the year — the summer solstice — when Earth’s north pole is tilted most directly towards the Sun.
The “ring of fire” was first visible in northeastern Republic of Congo from 5:56 local time (04:56 GMT) just a few minutes after sunrise.
“It’s a bit like switching from a 500-watt to a 30-watt light bulb,” he added. “It’s a cold light and you don’t see as well.”
People hundreds of kilometres (miles) on either side of the centreline across 14 countries could also see light drain from the day but not the “ring of fire”.
Weather conditions are critical for viewing.
A solar eclipse always occurs about two weeks before or after a lunar eclipse, when the Moon moves into Earth’s shadow. Lunar eclipses are visible from about half of the Earth’s surface.
There will be a second solar eclipse in 2020 on December 14 over South America. Because the Moon will be a bit closer to Earth, it will block out the Sun’s light entirely.
