Note4Students

From UPSC perspective, the following things are important :

Prelims level: Ningaloo ‘Hybrid’ Solar Eclipse

Mains level: Not Much

A ‘hybrid’ solar eclipse called the Ningaloo Eclipse recently happened on April 20, 2023.

Ningaloo ‘Hybrid’ Solar Eclipse

It was a rare astronomical event that occurred on April 20, 2023.
The Moon passed directly between the Sun and the Earth, casting a shadow on a narrow strip of land in Western Australia.
It was a “hybrid” eclipse, starting as an annular eclipse and transitioning into a total eclipse.
The path of the eclipse crossed over the Ningaloo Reef, a world heritage site in Western Australia.
It offered a unique opportunity to view the eclipse against the backdrop of the reef and the Indian Ocean.

How rare are such events?

During a solar eclipse, the Moon passes between the Sun and Earth, casting a shadow on Earth’s surface.
However, solar eclipses do not occur every month because the Moon’s orbit is tilted by about 5 degrees relative to Earth’s orbit around the Sun.
Therefore, the Moon’s shadow usually misses Earth, but occasionally the alignment is just right for a solar eclipse to occur.
In the case of the Ningaloo Hybrid Solar Eclipse, the alignment was such that the Moon was at the right distance from Earth to create both an annular and a total eclipse as it moved across the Sun.
This type of eclipse is quite rare, occurring only about once every 400 years.