what is the name of the equator

Geography. Latitude is a system of imaginary east-west lines, called parallels, that circle Earth parallel to the Equator. The Navy is chock full of myth and tradition, and what happens at sea even affects our language. At the equator, however, the … It is equidistant from the North and South Poles, and divides the globe into the Northern Hemisphere and the Southern Hemisphere. 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'.[2]. Updates? Lowlands around the equator generally have a tropical rainforest climate, also known as an equatorial climate, though cold ocean currents cause some regions to have tropical monsoon climates with a dry season in the middle of the year, and the Somali Current generated by the Asian monsoon due to continental heating via the high Tibetan Plateau causes Greater Somalia to have an arid climate despite its equatorial location. Large departures are caused by changes in the direction of the IMF relative to…. The equator is an imaginary line of latitude on the spheroid (Earth), dividing it into southern and northern hemispheres. Parallels are used to measure distances in degrees north or south of the Equator. The equator thus qualifies as a great circle because it passes through the exact center of the Earth and divides it in half. The equator is one of the five notable circles of latitude on Earth; the other four are both polar circles (the Arctic Circle and the Antarctic Circle) and both tropical circles (the Tropic of Cancer and the Tropic of Capricorn). The highest point on the equator is at the elevation of 4,690 metres (15,387 ft), at 0°0′0″N 77°59′31″W / 0.00000°N 77.99194°W / 0.00000; -77.99194 (highest point on the equator), found on the southern slopes of Volcán Cayambe [summit 5,790 metres (18,996 ft)] in Ecuador. The equator is the only line on the Earth's surface that is considered a great circle. A circle that divides a sphere or other surface into congruent parts. 1 Answers. Equator, great circle around the Earth that is everywhere equidistant from the geographic poles and lies in a plane perpendicular to the Earth’s axis. It is the imaginary line on the spheroid, equidistant from its poles, dividing it into northern and southern hemispheres. The equator divides the planet into the Northern Hemisphere and Southern Hemisphere and is located at 0 degrees latitude, the halfway line between the North Pole and South Pole.[1]. Is the sunniest place on Earth at the Equator? 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°. Please refer to the appropriate style manual or other sources if you have any questions. A. the tropics B. the doldrums C. the Arctic Circle D. the Bermuda Triangle. If it were really circular, the length of the equator would then be exactly 2π times the radius, namely 40,075.0142 km (24,901.4594 mi). LOGIN TO VIEW ANSWER. The added velocity reduces the fuel needed to launch spacecraft eastward (in the direction of Earth's rotation) to orbit, while simultaneously avoiding costly maneuvers to flatten inclination during missions such as the Apollo moon landings. Nevertheless, temperatures are high year round due to the earth's axial tilt of 23.5° not being enough to create a low minimum midday declination to sufficiently weaken the sun's rays even during the solstices. Average annual temperatures in equatorial lowlands are around 31 °C (88 °F) during the afternoon and 23 °C (73 °F) around sunrise. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. The imaginary lines circling the globe in an east-west direction are called the lines of latitude (or parallels, as they are parallel to the equator).They are used to measure distances north and south of the equator.The lines circling the globe in a north-south direction are called lines of longitude (or meridians). Light rays from the Sun's center are perpendicular to Earth's surface at the point of solar noon on the equator. Our editors will review what you’ve submitted and determine whether to revise the article. What is the name given to the imaginary line located at 0° tha… What are the names of the imaginary lines that run east to wes… Which two countries dominate the. The geographical mile is defined as one arc-minute of the equator, so it has different values depending on which radius is assumed. Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, Social Studies for Kids - The Equator and the Prime Meridian, National Geographic Society - Encyclopedic Entry - Equator, Equator - Children's Encyclopedia (Ages 8-11), Equator - Student Encyclopedia (Ages 11 and up). This geographic, or terrestrial, Equator divides the Earth into the Northern and Southern hemispheres and forms the imaginary reference line on the Earth’s surface from which latitude is reckoned; in other words, it is the line with 0° latitude. Earth bulges slightly at the equator; the "average" diameter of Earth is 12,750 km (7,922 mi), but the diameter at the equator is about 43 km (27 mi) greater than at the poles. A circular motion, or a circle described by a moving body. [5] This equatorial radius is also in the 2003 and 2010 IERS Conventions. [citation needed], Intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and midway between the poles, "Moonport: A History of Apollo Launch Facilities and Operations", https://www.discovermagazine.com/environment/millions-of-years-ago-the-poles-moved-and-it-could-have-triggered-an-ice-age, "The IAU 2009 system of astronomical constants: the report of the IAU working group on numerical standards for Fundamental Astronomy", "General definitions and numerical standards", "Memoria Técnica de la Determinación de la Latitud Cero", https://en.wikipedia.org/w/index.php?title=Equator&oldid=1016726724, Wikipedia indefinitely move-protected pages, Articles with unsourced statements from April 2017, Articles with unsourced statements from March 2012, Articles with unsourced statements from January 2015, Wikipedia articles with WorldCat-VIAF identifiers, Creative Commons Attribution-ShareAlike License, Passing 4.3 km (2.7 mi) north of the border with, This page was last edited on 8 April 2021, at 19:00. The latitude of the Equator is zero degrees. This makes the equator 0.16% longer than a meridian (a great circle passing through the two poles). It is one of the lines known as a line of latitude, or circle of latitude. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Noun. "An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and midway between the poles. Column: Origin of the name "Equator Principles" The initial founders of the Equator Principles (EPs) wanted the adoption of the EPs to be a globally applicable (to financial institutions in the northern and southern hemispheres) and the equator seemed to represent that balance perfectly – hence the name, Equator Principles. For example, by WSG-84, the distance is 1,855.3248 metres (6,087.024 ft), while by IAU-2000, it is 1,855.3257 metres (6,087.027 ft). The plane of Earth's equator, when projected outwards to the celestial sphere, defines the celestial equator. [citation needed]. Answers: 3 Get Other questions on the subject: Geography. noun 2 The equator divides the planet into the Northern Hemisphere and Southern Hemisphere and is located at 0 degrees latitude, the halfway line between the North Pole and South Pole. Asked By administrator @ 26/01/2020 12:15 AM. Are there places on Earth that have never been surveyed? [4] This correlates with the Indian plate crashing into Asia as well as the Himalayan uplift. Articles from Britannica Encyclopedias for elementary and high school students. In fact, the official name of Ecuador - the Republic of Ecuador literally translates to "Republic of the Equator". THE EQUATOR PRINCIPLES IMPLEMENTATION NOTE Disclaimer: This document contains selected information and examples to support the understanding of the requirements in, and implementation of, the Equator Principles and does not ... What Are The EPFI Reporting Requirements Related To Submitting Project Name Ecuador is the world’s only country that is named after a geographical feature. Rainfall is very high away from cold ocean current upwelling zones, from 2,500 to 3,500 mm (100 to 140 in) per year. The IUGG standard meridian is, to the nearest millimetre, 40,007.862917 kilometres (24,859.733480 mi), one arc-minute of which is 1,852.216 metres (6,076.82 ft), explaining the SI standardization of the nautical mile as 1,852 metres (6,076 ft), more than 3 metres (9.8 ft) less than the geographical mile. The country, Ecuador, is named after the word, equator. This effect must be accounted for in detailed geophysical measurements. Imaginary equator in the sky. This is a difference of less than one millimetre (0.039 in) over the total distance (approximately 1.86 kilometres or 1.16 miles). On earth, this line is approximately 24,901 miles of which only 21.3% lies on land and the rest on the water. Explanation: The zone of equatorial calm or Doldrums is the area that surrounds the Earth near the equator, which coincides with the low pressure belt. The Earth's equator is an imaginary planetary line that is about 40,075 km (24,901 mi) long in circumference. Temperatures in most places are generally warm with high humidity for the whole year. large portion of the Arctic… What is the name for the areas of calm winds near the equator? Omissions? The equator is the only line of latitude which is also a great circle—that is, one whose plane passes through the center of the globe. Find 109 ways to say EQUATOR, along with antonyms, related words, and example sentences at Thesaurus.com, the world's most trusted free thesaurus. [citation needed] Milder line-crossing ceremonies, typically featuring King Neptune, are also held for passengers' entertainment on some civilian ocean liners and cruise ships. At the equinoxes, the Earth's axis is perpendicular to the sun rather than tilted toward or away, meaning that day and night are both about 12 hours long across the whole of the Earth. The International Association of Geodesy (IAG) and the International Astronomical Union (IAU) have chosen to use an equatorial radius of 6,378.1366 km (3,963.1903 mi) (codified as the IAU 2009 value). But to be precise, that it not correct. The terms summer, autumn, winter and spring do not generally apply. Along the equator, 1 minute of arc is 1,855.33 meters. Seasons result from the tilt of the Earth's axis compared to the plane of its revolution around the Sun. Thus, the celestial equator and the ecliptic do not lie on the same plane, but cross each other at an angle of 23.5 degrees. The name "equator" is Latin for "even-maker"; at equator the day and night are exactly the same length around the year. The official name of the nation is República del Ecuador, which in English translates to “The Republic of the Equator.” Countries On The Equator Are Ideal Locations Of Spaceports Nusantara is an Indonesian word for the Indonesian archipelago. Geological samples show the equator significantly changed positions between 12 and 48 million years ago, as sediment deposited by ocean thermal currents at the equator have shifted. What is the name of the latitudes labeled on the Analemma A Equator B Tropic of from GEOL 1 at California State University, Sacramento Corrections? The Equator runs through several … Alternative Titles: geographical equator, terrestrial equator Equator, great circle around the Earth that is everywhere equidistant from the geographic poles and … [1], Sites near the equator, such as the Guiana Space Centre in Kourou, French Guiana, are good locations for spaceports as they have the fastest rotational speed of any latitude, 460 m (1,509 ft)/sec. This is defined as any circle drawn on a sphere (or an oblate spheroid) with a center that includes the center of that sphere. Despite its name, no part of Equatorial Guinea lies on the equator. The Line Crossing Ceremony might just be the most interesting of today's naval traditions.. A Time-Honored Tradition Please help ☹️ will mark brainliest. It originated from Old Javanese and literally means " archipelago ". Let us know if you have suggestions to improve this article (requires login). The equator is a line which is not real drawn around a sphere or planet, such as the Earth. There's no special name for that length. The nautical mile was historically defined as a minute of arc along a longitude (not the equator) meridian of the Earth. The hemisphere turned toward the sun receives more sunlight and is in summer, while the other hemisphere receives less sun and is in winter (see solstice). Locations on the equator experience the shortest sunrises and sunsets because the Sun's daily path is nearly perpendicular to the horizon for most of the year. The sea-level surface of the Earth (the geoid) is irregular, so the actual length of the equator is not so easy to determine. The length of daylight (sunrise to sunset) is almost constant throughout the year; it is about 14 minutes longer than nighttime due to atmospheric refraction and the fact that sunrise begins (or sunset ends) as the upper limb, not the center, of the Sun's disk contacts the horizon. …roughly parallel to Earth’s magnetic equator. Related Questions in Geography. Starting at the Prime Meridian and heading eastwards, the equator passes through: Passing just south of Baker Island, and just north of Jarvis Island,  United States Minor Outlying Islands. In the cycle of Earth's seasons, the equatorial plane runs through the Sun twice per year: on the equinoxes in March and September. When the Sun is directly above the Earth's equator (on the equinoxes of approximately March 20 and September 23), sunlight shines perpendicular to the Earth's axis of rotation, and all latitudes have a 12-hour day and 12-hour night. The deposits by thermal currents are determined by the axis of the earth, which determines solar coverage of the Earth's surface. Learn more. equator definition: 1. an imaginary line drawn around the middle of the earth an equal distance from the North Pole and…. However, its island of Annobón is 155 km (96 mi) south of the equator, and the rest of the country lies to the north. The Equator is a massive but imaginary line that runs across the middle of Earth, dividing the planet into northern and southern hemispheres. (often “the Equator”) An imaginary great circle around the Earth, equidistant from the two poles, and dividing earth's surface into the northern and southern hemisphere. Examine the population chart of niger. Many naval traditions, from the Sirens and Sea Monsters of the Odyssey to the boatswain's call, date back hundreds and even thousands of years.. There are about 200 rainy days per year and average annual sunshine hours are around 2,000. Hence, there will be two points on the celestial sphere where the ecliptic crosses the celestial equator and two instants during the year when the Sun is at its greatest angular distance from the celestial equator. Test your knowledge on this journey around the world. Small departures from this average orientation are caused by rotation of the tilted dipole magnetic field once per day and by revolution of Earth around the Sun once per year. The Equator was discovered and mapped out by a French geodesic expedition team that was led by an explorer named Charles-Marie de La Comdamine in the year 1736. Despite high year-round sea level temperatures, some higher altitudes such as the Andes and Mount Kilimanjaro have glaciers. [Middle English, from Medieval Latin aequātor (diēī et noctis), equalizer (of day and night), from Latin aequāre, to equalize; see equate .] The latitude of the Earth's equator is, by definition, 0° (zero degrees) of arc. There is a widespread maritime tradition of holding ceremonies to mark a sailor's first crossing of the equator. The earth is commonly modeled as a sphere flattened 0.336% along its axis. One international nautical mile = 1,852 meters exactly. The country, Ecuador, is named after the word, equator. Why is the Equator called the Equator? The oldest recorded birth by the Social Security... How unique is the name Equator? [citation needed]. The word, equator, comes from the same place as the word "equal" -- it divides the earth in equal sections. [6] It is also the equatorial radius used for the IERS 2003 ellipsoid. The GRS 80 (Geodetic Reference System 1980) as approved and adopted by the IUGG at its Canberra, Australia meeting of 1979 has an equatorial radius of 6,378.137 km (3,963.191 mi). The strong warming of this area of the place to ascending currents as well as a warm and oppressive atmosphere, feared in other times by the Captains of the sailboats that had to cross it. The equator passes through the land of 11 countries. Geography, 21.06.2019 21:00, maymayrod2000. From 1880 to 2019 less than 5 people per year have been born with the first name Equator. Its capital city of Quito, lies smack in the middle of the imaginary line. Hereof, what is the name for the imaginary lines that run from east to west? The climate at the equator has a special name called the equatorial climate. Most locations on the Equator experience consistently high temperatures throughout the year. Throughout the year, the northern and southern hemispheres are alternately turned either toward or away from the sun depending on Earth's position in its orbit. In Africa, the equator runs for almost 2,500 miles/ 4,020 kilometers through seven West , Central and East African countries just south of the Sahara Desert. The equator is an imaginary line splitting the globe into two hemispheres. Indonesia is the country straddling the greatest length of the equatorial line across both land and sea. The Equator appears on maps and globes. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... World map with the Equator marked by a red line. To a person on Earth, the Sun appears to travel above the equator (or along the celestial equator) at these times. While every effort has been made to follow citation style rules, there may be some discrepancies. This is slightly above the snow line and is the only place on the equator where snow lies on the ground. Due to the fact that the Earth wobbles slightly on its axis through the year, the higher latitudes experience summer and winter seasons, as well as variations in day length. The Equator is an imaginary line perpendicular to this axis. For both GRS 80 and WGS 84, this results in a length for the equator of 40,075.0167 km (24,901.4609 mi). The equator is one of five lines of latitude used to help people navigate the world. This might be called a nautical mile. Near the equator, there is little temperature change throughout the year, though there may be dramatic differences in rainfall and humidity. Aviation Week and Space Technology on 9 October 1961 reported that measurements using the Transit IV-A satellite had shown the equatorial diameter from longitude 11° West to 169° East to be 1,000 feet (305 m) greater than its diameter ninety degrees away. Equator definition is - the great circle of the celestial sphere whose plane is perpendicular to the axis of the earth. The word, equator, comes from the same place as the word "equal" -- it divides the earth in equal sections. It is the starting point for the measuring system called latitude. Submit your answer. What is the name for the area of calm winds near the equator. The WGS 84 (World Geodetic System 1984) which is a standard for use in cartography, geodesy, and satellite navigation including GPS, also has an equatorial radius of 6,378.137 km (3,963.191 mi). . American Heritage® Dictionary of the English Language, Fifth Edition. 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. The equator is the imaginary line that separates the northern hemisphere from the southern hemisphere and runs across the center of the Earth at a latitude of exactly zero degrees. In astronomy, the celestial equator is the great circle in which the plane of the terrestrial Equator intersects the celestial sphere; it consequently is equidistant from the celestial poles.

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