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41°52′33″N 87°36′58″W / . 41.8758°N 87.6161°W. / 41.8758; -87.6161. Note: Queen's Landing does not extend into Lake Michigan; instead the pier lies along the lakefront. Queen's Landing is a concrete pier on the shore of Lake Michigan, east of Lake Shore Drive, across from Buckingham Fountain in Grant Park, Chicago, Illinois ...
Informally, specifying a geographic location usually means giving the location's latitude and longitude. The numerical values for latitude and longitude can occur in a number of different units or formats: [2] sexagesimal degree: degrees, minutes, and seconds : 40° 26′ 46″ N 79° 58′ 56″ W
v. t. e. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [ 1] It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others.
Decimal degrees ( DD) is a notation for expressing latitude and longitude geographic coordinates as decimal fractions of a degree. DD are used in many geographic information systems (GIS), web mapping applications such as OpenStreetMap, and GPS devices. Decimal degrees are an alternative to using sexagesimal degrees (degrees, minutes, and ...
Geodetic coordinates. Geodetic coordinates are a type of curvilinear orthogonal coordinate system used in geodesy based on a reference ellipsoid . They include geodetic latitude (north/south) ϕ, longitude (east/west) λ, and ellipsoidal height h (also known as geodetic height [1] ). The triad is also known as Earth ellipsoidal coordinates [2 ...
Latitude is given as an angle that ranges from −90° at the south pole to 90° at the 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 used together as a coordinate pair to specify a location on the surface of the Earth.
The 81st parallel north is a circle of latitude that is 81 degrees north of the Earth's equatorial plane, in the Arctic. It crosses the Atlantic Ocean, the Arctic Ocean, Europe, Asia and North America . At this latitude the sun is always visible during the summer solstice and astronomical twilight during the winter solstice .
The 46th parallel north is a circle of latitude that is 46 degrees north of the Earth's equatorial plane. It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean . At this latitude the sun is visible for 15 hours, 45 minutes during the summer solstice and 8 hours, 38 minutes during the winter solstice.