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  2. Spacecraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_flight_dynamics

    This is defined as the distance from a satellite at which its gravitational pull on a spacecraft equals that of its central body, which is = /, where D is the mean distance from the satellite to the central body, and m c and m s are the masses of the central body and satellite, respectively. This value is approximately 66,300 kilometers (35,800 ...

  3. List of Asian countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_Asian_countries_by...

    Estimation of the World Bank Group for 2022. [2] [3] [4] The data is filtered according to the list of countries in Asia.The values in the World Bank Group tables are rounded

  4. Geographic coordinate system - Wikipedia

    en.wikipedia.org/wiki/Geographic_coordinate_system

    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 type of the various spatial reference systems that are in use, and forms the basis for most others.

  5. List of countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_life...

    This list of countries by life expectancy provides a comprehensive list of countries alongside their respective life expectancy figures. The data is differentiated by sex, presenting life expectancies for males, females, and a combined average.

  6. List of European countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_European_countries...

    Estimation of the World Bank Group for 2022. [2] [3] [4] The data is filtered according to the list of countries in Europe.In the World Bank Group list and, accordingly, in this list, there are no mini-states with a population of several tens of thousands of people (Andorra, Monaco, San Marino, Vatican City).