The element later named as helium is first detected in the spectrum of the Sun's chromosphere, by French astronomer Jules Janssen

Quando

18 de ago. de 1868

Tipo

Evento

Coordenadas

10.60° N, 102.20° E

Posicionado em: coordinates of the event it links, Solar eclipse of August 18, 1868.

The element later named as helium is first detected in the spectrum of the Sun's chromosphere, by French astronomer Jules Janssen, during a total eclipse in Guntur, British India, but is assumed to be sodium.

Total eclipse named after Rama IV of Siam

A total solar eclipse occurred at the Moon's ascending node of orbit on Tuesday, August 18, 1868, with a magnitude of 1.0756. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth.

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