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  2. 45th parallel north - Wikipedia

    en.wikipedia.org/wiki/45th_parallel_north

    The 45th parallel north is often called the halfway point between the equator and the North Pole, but the true halfway point is 16.038487 km (9.965854 mi) north of it (at approximately 45°08'39.544") because Earth is an oblate spheroid; that is, it bulges at the equator and is flattened at the poles. [1]

  3. Degree (angle) - Wikipedia

    en.wikipedia.org/wiki/Degree_(angle)

    ⁠ 50 π / 9 ⁠ mrad ≈ 17.45 ... 360 is approximately the number of days in a year. ... For many practical purposes, a degree is a small enough angle that whole ...

  4. List of countries by latitude - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_latitude

    45° S: New Zealand; Chile; Argentina: 60° S: Entirely ocean (slightly north of the South Orkney Islands); sometimes considered the northern boundary of the Southern Ocean: 75° S: Dome C, Antarctica: 90° S South Pole

  5. Magnetic declination - Wikipedia

    en.wikipedia.org/wiki/Magnetic_declination

    Magnetic declination varies both from place to place and with the passage of time. As a traveller cruises the east coast of the United States, for example, the declination varies from 16 degrees west in Maine, to 6 in Florida, to 0 degrees in Louisiana, to 4 degrees east in Texas.

  6. 45th parallel south - Wikipedia

    en.wikipedia.org/wiki/45th_parallel_south

    The 45th parallel south is a circle of latitude that is 45° south of the Earth's equator.. Highway sign marking the 45th parallel in New Zealand. It is the line that marks the theoretical halfway point between the equator and the South Pole.

  7. Declination - Wikipedia

    en.wikipedia.org/wiki/Declination

    When an object is directly overhead its declination is almost always within 0.01 degrees of the observer's latitude; it would be exactly equal except for two complications. [ 6 ] [ 7 ] The first complication applies to all celestial objects: the object's declination equals the observer's astronomical latitude, but the term "latitude" ordinarily ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Arctic Circle - Wikipedia

    en.wikipedia.org/wiki/Arctic_Circle

    Relationship of Earth's axial tilt (ε) to the tropical and polar circles. The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the Sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the centre of the Sun is visible at local midnight, and at least ...