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  2. Meridian (geography) - Wikipedia

    en.wikipedia.org/wiki/Meridian_(geography)

    Meridians run between the North and South poles. In geography and geodesy, a meridian is the locus connecting points of equal longitude, which is the angle (in degrees or other units) east or west of a given prime meridian (currently, the IERS Reference Meridian). [1] In other words, it is a coordinate line for longitudes, a line of longitude.

  3. Prime meridian - Wikipedia

    en.wikipedia.org/wiki/Prime_meridian

    The prime meridian of the Moon lies directly in the middle of the face of the Moon visible from Earth and passes near the crater Bruce. The prime meridian of Mars was established in 1971 [35] and passes through the center of the crater Airy-0, although it is fixed by the longitude of the Viking 1 lander, which is defined to be 47.95137°W. [36]

  4. List of acupuncture points - Wikipedia

    en.wikipedia.org/wiki/List_of_acupuncture_points

    [citation needed] The World Health Organization (WHO) published A Proposed Standard International Acupuncture Nomenclature Report in 1991 and 2014, listing 361 classical acupuncture points organized according to the fourteen meridians, eight extra meridians, 48 extra points, and scalp acupuncture points, [4] and published Standard Acupuncture ...

  5. Longitude - Wikipedia

    en.wikipedia.org/wiki/Longitude

    Longitude is given as an angular measurement with 0° at the Prime Meridian, ranging from −180° westward to +180° eastward. The Greek letter λ (lambda) [38] [39] is used to denote the location of a place on Earth east or west of the Prime Meridian. Each degree of longitude is sub-divided into 60 minutes, each of which is divided into 60 ...

  6. List of map projections - Wikipedia

    en.wikipedia.org/wiki/List_of_map_projections

    In normal aspect, these map the central meridian and parallels as straight lines. Other meridians are curves (or possibly straight from pole to equator), regularly spaced along parallels. Conic In normal aspect, conic (or conical) projections map meridians as straight lines, and parallels as arcs of circles. Pseudoconical

  7. Category:Meridians (geography) - Wikipedia

    en.wikipedia.org/wiki/Category:Meridians_(geography)

    Pages in category "Meridians (geography)" The following 200 pages are in this category, out of approximately 397 total. This list may not reflect recent changes .

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  9. Hemispheres of Earth - Wikipedia

    en.wikipedia.org/wiki/Hemispheres_of_Earth

    The division of Earth by the Equator and the prime meridian Map roughly depicting the Eastern and Western hemispheres. In geography and cartography, hemispheres of Earth are any division of the globe into two equal halves (hemispheres), typically divided into northern and southern halves by the Equator and into western and eastern halves by the Prime meridian.