Length of equator

If it were really circular, the length of the Equator would be exactly 2π times the radius, namely 4075. Although the length of the daytime period is always twelve hours at the Equator , in all seasons, at all other latitudes the length varies with the season. When it is winter north of the Equator , it is summer south of . Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles.

Lines of constant latitude, or parallels, run east–west as circles parallel to the equator.

The Equator is an imaginary line around the middle of the Earth.

It is halfway between the North and South Poles, and divides the Earth into the Northern and Southern Hemispheres.

He found the circumference of the earth. Using those measurements, the equatorial circumference of Earth is about 29miles ( 40km). However, from pole-to-pole — the meridional circumference — Earth . The reverse is true for the Southern Hemisphere. The Prime Meridian separates the Eastern and Western Hemispheres.

Where you are on the earth has an affect on the day length . Day length at the Equator At latitude 0° (the Equator ) day length will be approximately . Continuing in the same direction takes you along the 180th degree longitude line . In either case, the length of the equator is by definition exactly 2π times the given standar which to the nearest millimeter is 407016. On the equinoxes, the geometric center of the sun is above the horizon for hours, and you might think that the length of the day (hours of daylight) . Since Earth is only approximately . Circles of latitude are unlike circles of longitude, which all are great circles with the centre of Earth in the middle, as the circles of latitude get smaller as the distance from the Equator increases. The 60th circle of latitude is half as long as the equator . Each meridian is perpendicular to all circles of latitude.

The latitude of the equator is, by definition, 0°. The circumference of the Earth at the equator : 2901. On the equator , the sun is directly overhead at noon on the two equinoxes - near March and September 21.

The equator divides the planet into the Northern and Southern Hemispheres. When the Sun lies in its plane, day and night are everywhere of equal length , a twice-per-year occurrence known as equinox.