# Is a meridian a circle or a line?

## Is a meridian a circle or a line?

All the meridians on Earth are great circles. Meridians, including the prime meridian, are the north-south lines we use to help describe exactly where we are on the Earth. All these lines of longitude meet at the poles, cutting the Earth neatly in half.

## Is every meridian is actually a circle rather than a curved line?

A) Every meridian is actually a circle rather than a curved line. Every meridian is the same length and has the same beginning and end. Greenwich Mean Time is measured from. 0 degrees longitude.

Is a meridian a circle?

In astronomy, the meridian is the great circle passing through the celestial poles, as well as the zenith and nadir of an observer’s location. Consequently, it contains also the north and south points on the horizon, and it is perpendicular to the celestial equator and horizon.

### Is the prime meridian a real line?

The prime meridian is the line of 0 longitude, the starting point for measuring distance both east and west around the Earth. The prime meridian is arbitrary, meaning it could be chosen to be anywhere. Any line of longitude (a meridian) can serve as the 0 longitude line.

### What is a true meridian?

True Meridian. The true meridian passing through a station on surface of the earth is the (imaginary) line of intersection of a (imaginary) plane passing through the geographical North and South poles of the earth with its actual surface.

Where is the meridian line?

Greenwich
The prime meridian is a geographical reference line that passes through the Royal Observatory, Greenwich, in London, England. It was first established by Sir George Airy in 1851, and by 1884, over two-thirds of all ships and tonnage used it as the reference meridian on their charts and maps.

#### Is every meridian distorted?

Every meridian is actually a circle rather than a line. Every meridian is distorted by magnetic declination.

#### Does every parallel begin and end at poles?

Every parallel begins and ends at the poles. Every parallel is the same length. Every meridian is distorted by magnetic declination.