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The Arctic Circle, roughly 67° north of the Equator, defines the boundary of the Arctic waters and lands. The Arctic Circle is one of the two polar circles, and the most northerly of the five major circles of latitude as shown on maps of Earth at about 66° 34' N. [ 1] Its southern equivalent is the Antarctic Circle .
[26] [53] This has a radius that varies between 70 and 85 kilometers (43 and 53 mi). [25] The next ring structure, moving inwards, is the peak ring. The area between the inner rim and peak ring is described as the "terrace zone", characterized by a series of fault blocks defined by normal faults dipping towards the crater center, sometimes ...
The map also shows the 75th parallel north and 60th parallel north. Temporary research station of German-Swiss expedition on the sea ice at the Geographic North Pole. Drillings at the landing site at 90°N showed an average ice thickness of 2.5 metres (8.2 feet) on April 16, 1990 This pressure ridge at the North Pole is about 1 km (0.62 mi ...
The latitude of the circle is approximately the angle between the Equator and the circle, with the angle's vertex at Earth's centre. The Equator is at 0°, and the North Pole and South Pole are at 90° north and 90° south, respectively. The Equator is the longest circle of latitude and is the only circle of latitude which also is a great circle.
Earth radius (denoted as R 🜨 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).
Valeriepieris circle. The original 2013 map by Ken Myers, with the interior of the circle inverted. A Valeriepieris circle[ 1][ 2][ 3] is a figure drawn on the Earth's surface such that the majority of the human population lives within its interior. The concept was originally popularized by a map posted on Reddit in 2013, made by a Texas ESL ...
Interstate 90 Map of the contiguous United States with I-90 highlighted in red Route information Length 3,021.22 mi (4,862.18 km) Existed 1956–present NHS Entire route Major junctions West end SR 519 in Seattle, WA Major intersections I-5 in Seattle, WA I-15 near Butte, MT I-25 near Buffalo, WY I-35 in Albert Lea, MN I-55 in Chicago, IL I-65 in Gary, IN I-80 US 6 in Lake Station, IN I-75 in ...
Key West is an island in the Straits of Florida, within the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it constitutes the City of Key West . The island of Key West is about 4 miles (6 kilometers) long and 1 mile (2 km) wide, with a ...