# What do you mean by equatorial diameter of the Earth?

## What do you mean by equatorial diameter of the Earth?

The Earth’s diameter at the Equator is about 12,756 kilometers (7,926 miles). The equatorial bulge means that people standing at sea level near the poles are closer to the center of the Earth than people standing at sea level near the Equator.

What is the difference between diameter and equatorial diameter?

The difference between the equatorial diameter and polar diameter of the Earth is about. A. 43km. Equator is an imaginary line that divides the earth into southern hemisphere and northern hemisphere while the Polar diameters are measured from pole to pole.

The radius of Earth at the equator is 3,963 miles (6,378 kilometers), according to NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

What is equator and pole?

Key Difference: The equator is the point from which the latitude is calculated. In other words, it is the 0° latitude line. A pole consists of two points: North Pole and South Pole. In simple terms, equator is the imaginary circle, which cuts the spherical Earth exactly in the middle, i.e. in two halves.

## What is Moon’s diameter?

2,159.1 mi
Moon/Diameter

What is the size and shape of the Earth?

It is an oblate spheroid. It’s flattened at the poles and bulges at the equator. The Earth is 12,756km at the equator and 12,714km from pole to pole. We round this up to 13,000km.

### How is Earth’s equatorial diameter calculated?

times the radius of the circle. The diameter of a circle is twice the radius, giving us a diameter for Earth of 12,756 km. Note: The Earth is almost, but not quite, a perfect sphere. Its equatorial radius is 6378 km, but its polar radius is 6357 km – in other words, the Earth is slightly flattened.

What’s the diameter of the moon?

## What do you mean by Equator?

An equator is an imaginary line around the middle of a planet or other celestial body. It is halfway between the North Pole and the South Pole, at 0 degrees latitude. An equator divides the planet into a Northern Hemisphere and a Southern Hemisphere.

Why is it called Equator?

Etymology. The name is derived from medieval Latin word aequator, in the phrase circulus aequator diei et noctis, meaning ‘circle equalizing day and night’, from the Latin word aequare meaning ‘make equal’.

### What is Sun’s diameter?

865,370 mi
Sun/Diameter

Why is the equatorial diameter greater than the polar diameter?

When the earth rotates it causes the equator to bulge . This increases the equatorial diameter by roughly forty three kilometres compared to the polar diameter. This is due to a slight bulge on the equator and slight flattening at the poles .

## What is Earth’s mean equatorial radius?

Equatorial radius. The Earth’s equatorial radius a, or semi-major axis, is the distance from its center to the equator and equals 6,378.1370 km (3,963.1906 mi). The equatorial radius is often used to compare Earth with other planets. Sep 19 2019

What is the diameter of all the planets at the equator?

As a result, the planet experiences a variation of 846 km (525.68 mi), measuring 48,682 km (30249.59 mi) at the poles and 49,528 km (30775.27 mi) at the equator. In summary, the planets of our Solar System vary in diameter due to differences in their composition and the speed of their rotation.

### What is Earths diameter of equator?

As a result, the latest measurements indicate that the Earth has an equatorial diameter of 12,756 km (7926 mi), and a polar diameter of 12713.6 km (7899.86 mi).