'Ring of fire' solar eclipse enthralls skywatchers

Skywatchers along a narrow band from west Africa to the Arabian Peninsula, India and the Far East witnessed a dramatic “ring of fire” solar eclipse on Sunday.

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 be seen from a narrow pathway across the planet.

The eclipse arrived on the northern hemisphere’s longest day of the year — the summer solstice — when the North Pole is tilted most directly toward the Sun. It was first visible in northeastern Republic of Congo from 5:56 local time just a few minutes after sunrise.

That was the point of maximum duration, with the blackout lasting a 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.

More spectacular, but less long-lived: the exact alignment of the Earth, Moon and Sun was visible for only 38 seconds.

In Shanghai, the thick cloud cover obscured the eclipse.

In Hong Kong, dozens of skywatchers ranging from astronomy enthusiasts with telescopes to families enjoying Father’s Day gathered at a waterfront park in east Kowloon to witness the spectacle, which lasted about 90 minutes.

Cheers erupted from the crowd when the cloud cleared and the eclipse was clearly visible.

The full eclipse was visible at successive locations over a period of nearly four hours, and one of the last places to see the partially hidden Sun was Taiwan.

In Nairobi, East Africa, observers saw only a partial eclipse as clouds blocked the sky for several seconds at the exact moment the Moon should have almost hidden the Sun.

Despite some disappointment, Susan Murbana said: “It was very exciting because I think I’m so obsessed with eclipses.

“Today has been very kind to us in terms of the clouds. And we’ve been able to see most of it,” said Murbana who set up the Traveling Telescope educational program with her husband Chu.

Without the coronavirus pandemic, they would have organized a trip to Lake Magadi in southern Kenya where the skies are generally clearer than over the capital.

“With the pandemic situation, we’re not able to have crowds... and get kids to look through or do stuff,” she said, but still managed to share the event on social media.

The annular eclipse is visible from only about 2 percent of Earth’s surface, Florent Delefie, an astronomer at the Paris Observatory, said.

“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.”

A solar eclipse always occurs around two weeks before or after a lunar eclipse. A lunar eclipse is due on July 5, with the best viewing over North and South America, southern Europe and Africa.

There will be a second solar eclipse 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.