Tropics of Cancer and Capricorn latitudes.
Tropics of Cancer and Capricorn latitudes, years 2014-2024, every six months.
Calculated using the PHP Science Labs website, Obliquity of the Ecliptic and Nutation in Obliquity (Using IAU 2000B nutation series); i.e. true obliquity of the ecliptic, as used by the National Land survey of Finland, Finnish Geodetic Institute, and the GIT Barents website:
Year, Month, Day. Universal Time, Hour, Minute Second.
Date UT Latitude
Y M D H M S
2014 1 1 0 0 0.000 23° 26’ 06.616” N / S
2014 7 1 0 0 0.000 23° 26’ 05.714” N / S
2015 1 1 0 0 0.000 23° 26’ 04.886” N / S
2015 7 1 0 0 0.000 23° 26’ 04.319” N / S Circumference 36788.914 km or 22859.572 international miles or 19864.425 international nautical miles.
2016 1 1 0 0 0.000 23° 26’ 04.218” N / S Circumference 36788.922 km or 22859.576 international miles or 19864.429 international nautical miles.
2016 7 1 0 0 0.000 23° 26’ 04.158” N / S Circumference 36788.927 km or 22859.579 international miles or 19864.431 international nautical miles.
2017 1 1 0 0 0.000 23° 26’ 04.444” N / S
2017 7 1 0 0 0.000 23° 26’ 05.076” N / S
2018 1 1 0 0 0.000 23° 26’ 05.661” N / S: Circumference 36,788.811 km or 22,859.507 international miles or 19864.369 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,092,575.953737 square km or 78,028,379.801141 square international miles.
2018 7 1 0 0 0.000 23° 26’ 06.663” N / S: Circumference 36,788.734 km or 22,859.460 international miles or 19,864.327 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,094,844.014964 square km or 78,029,255.504476 square international miles.
2019 1 1 0 0 0.000 23° 26’ 07.842” N / S: Circumference 36,788.643 km or 22,859.403 international miles or 19,864.278 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,097,512.715759 square km or 78,030,285.895614 square international miles.
2019 7 1 0 0 0.000 23° 26’ 08.935” N / S: Circumference 36,788.559 km or 22,859.351 international miles or 19,864.233 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,099,986.747279 square km or 78,031,241.124524 square international miles.
2020 1 1 0 0 0.000 23° 26’ 10.385” N / S: Circumference 36,788.448 km or 22,859.282 international miles or 19,864.173 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,103,268.848226 square km or 78,032,508.350784 square international miles.
2020 7 1 0 0 0.000 23° 26’ 11.658” N / S: Circumference 36,788.350 km or 22,859.221 international miles or 19,864.120 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,106,150.298447 square km or 78,033,620.884934 square international miles.
2021 1 1 0 0 0.000 23° 26’ 12.882” N / S: Circumference 36,788.256 km or 22,859.162 international miles or 19,864.069 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,108,920.829495 square km or 78,034,690.592952 square international miles.
2021 7 1 0 0 0.000 23° 26’ 14.284” N / S
2022 1 1 0 0 0.000 23° 26’ 15.231” N / S
2022 7 1 0 0 0.000 23° 26’ 16.261” N / S
2023 1 1 0 0 0.000 23° 26’ 17.231” N / S
2023 7 1 0 0 0.000 23° 26’ 17.718” N / S
2024 1 1 0 0 0.000 23° 26’ 18.281” N / S
2024 7 1 0 0 0.000 23° 26’ 18.434” N / S
Distances personally calculated, using Charles Karney's Online rhumb line calculations using the RhumbSolve utility: "RhumbSolve is accurate to about 15 nanometers (for the WGS84 ellipsoid)" or 0.000015 of a millimetre/millimeter or 0.00000059 of an inch. In emails to me from Charles Karney: "The accuracy of 15 nanometers that I quote is for paths up to half-way round the earth." "The accuracy for the Airy" [1830] "ellipsoid will be (very nearly) the same as for the WGS84 ellipsoid because the parameters are roughly the same." On RhumbSolve online: "RhumbSolve performs rhumb line calculations". "The path with a constant heading between two points on the ellipsoid at (lat1, lon1) and (lat2, lon2) is called the rhumb line (or loxodrome)". "NOTE: the rhumb line is not the shortest path between two points; that is the geodesic and it is calculated by GeodSolve."
Areas personally calculated in the WGS84 ellipsoid, using Charles Karney's geodesic polygon calculations using the Planimeter utility. "The result for the area is accurate to about 0.1 m² per vertex."
Calculated using the PHP Science Labs website, Obliquity of the Ecliptic and Nutation in Obliquity (Using IAU 2000B nutation series); i.e. true obliquity of the ecliptic, as used by the National Land survey of Finland, Finnish Geodetic Institute, and the GIT Barents website:
Year, Month, Day. Universal Time, Hour, Minute Second.
Date UT Latitude
Y M D H M S
2014 1 1 0 0 0.000 23° 26’ 06.616” N / S
2014 7 1 0 0 0.000 23° 26’ 05.714” N / S
2015 1 1 0 0 0.000 23° 26’ 04.886” N / S
2015 7 1 0 0 0.000 23° 26’ 04.319” N / S Circumference 36788.914 km or 22859.572 international miles or 19864.425 international nautical miles.
2016 1 1 0 0 0.000 23° 26’ 04.218” N / S Circumference 36788.922 km or 22859.576 international miles or 19864.429 international nautical miles.
2016 7 1 0 0 0.000 23° 26’ 04.158” N / S Circumference 36788.927 km or 22859.579 international miles or 19864.431 international nautical miles.
2017 1 1 0 0 0.000 23° 26’ 04.444” N / S
2017 7 1 0 0 0.000 23° 26’ 05.076” N / S
2018 1 1 0 0 0.000 23° 26’ 05.661” N / S: Circumference 36,788.811 km or 22,859.507 international miles or 19864.369 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,092,575.953737 square km or 78,028,379.801141 square international miles.
2018 7 1 0 0 0.000 23° 26’ 06.663” N / S: Circumference 36,788.734 km or 22,859.460 international miles or 19,864.327 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,094,844.014964 square km or 78,029,255.504476 square international miles.
2019 1 1 0 0 0.000 23° 26’ 07.842” N / S: Circumference 36,788.643 km or 22,859.403 international miles or 19,864.278 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,097,512.715759 square km or 78,030,285.895614 square international miles.
2019 7 1 0 0 0.000 23° 26’ 08.935” N / S: Circumference 36,788.559 km or 22,859.351 international miles or 19,864.233 nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,099,986.747279 square km or 78,031,241.124524 square international miles.
2020 1 1 0 0 0.000 23° 26’ 10.385” N / S: Circumference 36,788.448 km or 22,859.282 international miles or 19,864.173 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,103,268.848226 square km or 78,032,508.350784 square international miles.
2020 7 1 0 0 0.000 23° 26’ 11.658” N / S: Circumference 36,788.350 km or 22,859.221 international miles or 19,864.120 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,106,150.298447 square km or 78,033,620.884934 square international miles.
2021 1 1 0 0 0.000 23° 26’ 12.882” N / S: Circumference 36,788.256 km or 22,859.162 international miles or 19,864.069 international nautical miles. Area of the tropics as defined by the Tropic of Cancer and Tropic of Capricorn in the WGS84 ellipsoid 202,108,920.829495 square km or 78,034,690.592952 square international miles.
2021 7 1 0 0 0.000 23° 26’ 14.284” N / S
2022 1 1 0 0 0.000 23° 26’ 15.231” N / S
2022 7 1 0 0 0.000 23° 26’ 16.261” N / S
2023 1 1 0 0 0.000 23° 26’ 17.231” N / S
2023 7 1 0 0 0.000 23° 26’ 17.718” N / S
2024 1 1 0 0 0.000 23° 26’ 18.281” N / S
2024 7 1 0 0 0.000 23° 26’ 18.434” N / S
Distances personally calculated, using Charles Karney's Online rhumb line calculations using the RhumbSolve utility: "RhumbSolve is accurate to about 15 nanometers (for the WGS84 ellipsoid)" or 0.000015 of a millimetre/millimeter or 0.00000059 of an inch. In emails to me from Charles Karney: "The accuracy of 15 nanometers that I quote is for paths up to half-way round the earth." "The accuracy for the Airy" [1830] "ellipsoid will be (very nearly) the same as for the WGS84 ellipsoid because the parameters are roughly the same." On RhumbSolve online: "RhumbSolve performs rhumb line calculations". "The path with a constant heading between two points on the ellipsoid at (lat1, lon1) and (lat2, lon2) is called the rhumb line (or loxodrome)". "NOTE: the rhumb line is not the shortest path between two points; that is the geodesic and it is calculated by GeodSolve."
Areas personally calculated in the WGS84 ellipsoid, using Charles Karney's geodesic polygon calculations using the Planimeter utility. "The result for the area is accurate to about 0.1 m² per vertex."
