This is the first photo of a total solar eclipse, taken 170 years ago

Suara.com – On July 28, 1851, the first photo solar eclipse The total was successfully immortalized by an expert daguerreotypist named Johann Julius Friedrich Berkowski in Prussia.

This historic event is now 170 years old.

Daguerreotypy is an old photographic process in which silver-coated copper is treated with halogen fumes or iodine and makes it sensitive to light.

Previous attempts to take photos of the solar eclipse failed because the contrast did not show the contrast between the Sun’s corona and the Moon’s dark disk.

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Using a tiny six-centimeter telescope, Berkowski captured an 84-second exposure starting just after the Moon moved fully in front of the Sun.

Reported from Space.com, Thursday (29/7/2021), people have been observing Total Solar Eclipse since ancient times, but it wasn’t until the 19th century that humans found a way to photograph them.

At that time, Berkowski was commissioned by the Royal Prussian Observatory in Konigsberg to take pictures of the Total Solar Eclipse using the daguerreotypy process.

This method produces a black and white image that is microscopic in texture and shows the dark shadow of the Sun covered by the Moon.

According to a paper in the journal Acta Historica Astronomiae, the photo Berkowski took was the first properly exposed image of the Sun’s corona.

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The photo not only shows the contrast between the Sun’s and Moon’s coronas, but even reveals some of the Sun’s bulge extending from its disk.

Since then, solar eclipse photography has become easier with the help of digital cameras and even now smartphone cameras.

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