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Scientists from India also appeared throughout Europe. [134] By the time of India's independence colonial science had assumed importance within the westernized intelligentsia and establishment. French astronomer, Pierre Janssen observed the Solar eclipse of 18 August 1868 and discovered helium, from Guntur in Madras State, British India. [134]
The astronomers Mayank Vahia and Misturu Soma have identified the date of the solar eclipse as on 22 October 4202 BC or on 19 October 3811 BC. [4] The astronomers have also claimed that the story of the Atri's Eclipse is different and older from the general stories of Rahu and Ketu for the eclipses in the Hindu mythology.
Numerous interactions with the Mauryan Empire, and the later expansion of the Indo-Greeks into India suggest that transmission of Greek astronomical ideas to India occurred during this period. [45] The Greek concept of a spherical Earth surrounded by the spheres of planets, further influenced the astronomers like Varahamihira and Brahmagupta .
For six minutes, the longest eclipse since 1416, the Moon would completely block the face of the Sun, pulling a curtain of darkness over a thin stripe of Earth.
1868 – Jules Janssen observes a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun, during a total solar eclipse in Guntur, India. Later in the same year, Norman Lockyer observed the same line in the solar spectrum, and concluded that it was caused by an element in the Sun unknown on Earth.
The first evidence of helium was observed on August 18, 1868, as a bright yellow spectral line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun. The line was detected by French astronomer Jules Janssen during a total solar eclipse in Guntur, India.
The Surya Siddhanta is a text on astronomy and time keeping, an idea that appears much earlier as the field of Jyotisha of the Vedic period.The field of Jyotisha deals with ascertaining time, particularly forecasting auspicious dates and times for Vedic rituals. [25]
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