Approximately which line of longitude runs through the west-east centre of India?
On a map find any place in India through which it passes.
Answers
Answer: What is the Centre line of longitude?
A prime meridian is the meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian (the 180th meridian in a 360°-system) form a great circle. This great circle divides a spheroid into two hemispheres.
Explanation: Longitude , AU and UK also is a geographic coordinate that specifies the east–west position of a point on the Earth's surface, or the surface of a celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians (lines running from pole to pole) connect points with the same longitude. The prime meridian, which passes near the Royal Observatory, Greenwich, England, is defined as 0° longitude by convention. Positive longitudes are east of the prime meridian, and negative ones are west.
A location's north–south position along a meridian is given by its latitude, which is approximately the angle between the local vertical and the equatorial plane.
Longitude is generally given using the geometrical or astronomical vertical. This can differ slightly from the gravitational vertical because of small variations in Earth's gravitational field.
Contents
1 History
2 Noting and calculating longitude
2.1 Singularity and discontinuity of longitude
3 Plate movement and longitude
4 Length of a degree of longitude
5 Longitude on bodies other than Earth
6 See also
7 References
8 External links