Today, on June 21, the people of the Earth could observe the first solar eclipse this year. It was an unusual and rare eclipse, which is called “annular.”
As ScienceAlert explains, an annular solar eclipse happens when the Moon is farthest away from Earth in its orbit, and therefore appears smaller in our skies relative to the Sun.
That small difference in apparent size is what sets annular eclipses apart from full solar eclipses, when the closer position of the Moon (with its average radius of 1,800 kilometres or 1,000 miles) makes it appear to be the same size as our far larger star, which has a radius of around 696,000 kilometres (432,000 miles).
Residents of Central Africa and Asia could see the full ring of fire at 6:45 (Kyiv time). The maximum phase was observed in northern India. Elsewhere in the world, from southeastern Europe to northern Australia, the eclipse will be only partially visible.
At the peak of the eclipse, the Moon obscured 99.4% of the Sun's area. In any case, it can be observed only in clear weather.
In Ukraine it was seen partially. It happened in the morning, at 9:40 Kyiv time.