Indonesia to witness rare ‘solstice annular solar eclipse’ on Sunday

Most parts of the Indonesian archipelago will witness the rare spectacle of an annular solar eclipse, which will occur simultaneously with this year’s summer solstice on Sunday.

Indonesia to witness rare ‘solstice annular solar eclipse’ on Sunday

The National Institute of Aeronautics and Space (LAPAN) said the eclipse would be a rare phenomenon, as the last similar eclipse that could be witnessed from the archipelago occurred in 1648. Moreover, people will have to wait another 19 years to be able to witness such a phenomenon again.

Indonesia will be one of many countries and regions to witness the solstice annular solar eclipse, including Congo, South Sudan, Yemen, Saudi Arabia, Pakistan, India, China, Taiwan and Guam Islands.

LAPAN said the best place to watch the eclipse would be Miangas Island in Talaud Islands, North Sulawesi. People in most parts of North Sulawesi, North Maluku, West Papua and Papua can also witness around 30 to 40 percent of the solar eclipse.

Planetarium and observatory

The entire eclipse is expected to last for two hours in Miangas – the longest compared to other regions in the country – starting at 3:22 p.m. local time and ending at 5:32 pm. The eclipse’s peak will occur at 4:32 p.m.

People in Jakarta, West Java as well as most parts of Central Java, East Java, Bengkulu and Lampung will not be able to observe the eclipse. Several platforms will livestream the eclipse, such as the Virtual Telescope Project.

Annular solar eclipses occur when the Sun, Moon and Earth line up perfectly while the Moon is at its farthest point from the Earth. From the planet’s surface, the Moon’s apparent diameter is smaller than the Sun’s. It therefore blocks most of the Sun’s light, leaving a glowing ring around the moon’s circumference.

The summer solstice occurs when the Earth is tilted about 23.4 degrees toward the Sun, meaning the planet’s north pole is tilted directly toward the star, as reported by This phenomenon means the northern hemisphere will bask in more daylight than any other day of the year.

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