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The list of national coordinate reference systems (CRS) lists map projections officially recommended for existing countries. Given that every projection gives deformations, each country's needs are different in order to reduce these distortions.
This is a list of countries by easternmost point on land (dependent territories included). The order does not always reflect how close a country's territory is to the 180th meridian . Russia, Fiji, and Antarctica are notable exceptions because the 180th meridian passes through them.
In astronomy and celestial navigation, an ephemeris (/ ɪ ˈ f ɛ m ər ɪ s /; pl. ephemerides / ˌ ɛ f ə ˈ m ɛr ɪ ˌ d iː z /; from Latin ephemeris 'diary', from Ancient Greek ἐφημερίς (ephēmerís) 'diary, journal') [1] [2] [3] is a book with tables that gives the trajectory of naturally occurring astronomical objects and artificial satellites in the sky, i.e., the position ...
This is a list of all three-country tripoints on land or internal waters. Many of the coordinates listed below are only approximate. Many of the coordinates listed below are only approximate. As of 2020, there are 175 international tripoints.
Latitude Locations 90° N North Pole: 75° N: Arctic Ocean; Russia; northern Canada; Greenland: 60° N: Oslo, Norway; Helsinki, Finland; Stockholm, Sweden; major parts of Nordic countries in EU; St. Petersburg, Russia; southern Alaska United States; southern border of the Yukon and the Northwest territories in Canada; Shetland, UK (Scotland)
This is a list of countries and territories by the United Nations geoscheme, including 193 UN member states, two UN observer states (the Holy See [note 1] and the State of Palestine), two states in free association with New Zealand (the Cook Islands and Niue), and 49 non-sovereign dependencies or territories, as well as Western Sahara (a disputed territory whose sovereignty is contested) and ...
The "Air Almanac" of the United States and Great Britain tabulates celestial coordinates for 10-minute intervals for use in aerial navigation. The Sokkia Corporation's annual "Celestial Observation Handbook and Ephemeris" tabulated daily celestial coordinates (to a tenth of an arcsecond) for the Sun and nine stars; it was last published for 2008.
This list divides the world using the seven-continent model, with islands grouped into adjacent continents. Variations on are noted below and discussed in the following articles: Continent, Boundaries between the continents of Earth, and List of transcontinental countries.