Imaginary line halfway between Earth's North and South poles
This article is about Earth's equator. For its projection in the sky, see Celestial equator. For other uses, see Equator (disambiguation).
Not to be confused with Ecuador.
0°
class=notpageimage|
The Equator on a map of Earth
The equator is a circle of latitude that divides a spheroid, such as Earth, into the Northern and Southern hemispheres. On Earth, the Equator is an imaginary line located at 0 degrees latitude, about 40,075 km (24,901 mi) in circumference, halfway between the North and South poles.[1] The term can also be used for any other celestial body that is roughly spherical.
In spatial (3D) geometry, as applied in astronomy, the equator of a rotating spheroid (such as a planet) is the parallel (circle of latitude) at which latitude is defined to be 0°. It is an imaginary line on the spheroid, equidistant from its poles, dividing it into northern and southern hemispheres. In other words, it is the intersection of the spheroid with the plane perpendicular to its axis of rotation and midway between its geographical poles.
On and near the Equator (on Earth), noontime sunlight appears almost directly overhead (no more than about 23° from the zenith) every day, year-round. Consequently, the Equator has a rather stable daytime temperature throughout the year. On the equinoxes (approximately March 20 and September 23) the subsolar point crosses Earth's equator at a shallow angle, sunlight shines perpendicular to Earth's axis of rotation, and all latitudes have nearly a 12-hour day and 12-hour night.[2]
^"Equator". National Geographic - Education. 6 September 2011. Retrieved 9 March 2021.
^Kher, Aparna. "Equinox: Almost Equal Day and Night". timeanddate.com. Retrieved 5 November 2021.
0° The equator is a circle of latitude that divides a spheroid, such as Earth, into the Northern and Southern hemispheres. On Earth, the Equator is an...
The celestial equator is the great circle of the imaginary celestial sphere on the same plane as the equator of Earth. By extension, it is also a plane...
The thermal equator (also known as "the heat equator") is a belt encircling Earth, defined by the set of locations having the highest mean annual temperature...
The Ford Equator (Chinese: 福特领裕; pinyin: Fútè Lǐngyù) is a mid-size crossover SUV built by the JMC-Ford joint venture. The Equator is a three-row SUV...
The Suzuki Equator was a mid-size pickup truck based on the Nissan Frontier and assembled by Nissan. It was first sold in the US for the 2009 model year...
north pole, with 0° at the Equator. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude and longitude are...
The Enhancing the Quality and Transparency of health research Network (EQUATOR Network) is an international initiative aimed at promoting transparent...
The Equator Principles is a risk management framework adopted by financial institutions, for determining, assessing and managing environmental and social...
solar equator is the latitude on Earth at which the Sun is observed directly overhead at midday. Due to the obliquity of Earth's axis, the solar equator varies...
Equator Records or Equator Sound Studios was originally known as East African Records, owned by Afcot Ltd, situated in Nairobi, Kenya. In 1960, Charles...
Arctic and Antarctic circles and the Equator. The positions of these two circles of latitude (relative to the Equator) are dictated by the tilt of Earth's...
The Confederation of the Equator (Portuguese: Confederação do Equador) was a short-lived rebellion that occurred in the northeastern region of the Empire...
projection inflates the size of objects the further they are from the equator. In a Mercator projection, landmasses such as Greenland and Antarctica...
Sun crosses the Earth's equator, which is to say, appears directly above the equator, rather than north or south of the equator. On the day of the equinox...
encircles Earth near the thermal equator though its specific position varies seasonally. When it lies near the geographic Equator, it is called the near-equatorial...
parallel to the Equator and to each other. The North Pole is 90° N; the South Pole is 90° S. The 0° parallel of latitude is designated the Equator, the fundamental...
lines. The locus of the points having zero dip is called the magnetic equator or aclinic line. The inclination I {\displaystyle I} is defined locally...
obliquity of the ecliptic. If the equator is projected outward to the celestial sphere, forming the celestial equator, it crosses the ecliptic at two points...
Following the Equator (sometimes titled More Tramps Abroad) is a non-fiction social commentary in the form of a travelogue published by Mark Twain in...
angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in...
(0°N 0°E / 0°N 0°E / 0; 0), i.e., where the prime meridian and the equator intersect. The name is often used in mapping software as a placeholder...
their territories is commonly known as ″Aldi-Äquator″ (literally: Aldi equator) and runs from the Rhine via Mülheim an der Ruhr, Wermelskirchen, Marburg...
latitude are rhumb lines, except the Equator. The latitude of the circle is approximately the angle between the Equator and the circle, with the angle's vertex...
measures the angular distance of an object eastward along the galactic equator from the Galactic Center. Analogous to terrestrial longitude, galactic...