Science, asked by guhechetna, 1 month ago

international standard time is determine by which meridian write short notes​

Answers

Answered by vineetranger44
1

Explanation:

The meridian of the Royal Observatory of Greenwich! At noon, the sun is exactly at the zenith (right above) in that place … or, is it?

Hang on, what is noon? The time the sun bears exactly south and is highest in the sky? Not quite so! It was Johannes Kepler who found out that the orbit of the earth around the sun was not a perfect circle but a ellipses and therefore, its speed was not constant. Because of that, the duration of the day is only 24 hours as a yearly average. During the year, it can vary from about 23h45 to 24h15. That is called, the Equation of Time and you don’t need to worry about it unless … you try to find your position by the stars, as I did decades ago, with a sextant. The longitude being a difference of time with a prime meridian, that difference must be adjusted for the Equation of Time that you read from an almanac.

Answered by humazubair2019
1

Answer:

As the prime meridian, the north-south line at Greenwich is used as the reference for all other meridians of longitude, which are numbered east or west of it. The Greenwich meridian also serves as the basis for the world's standard time zone system

Explanation:

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