Arctic Circle and Antarctic Circle latitudes 2020 +/-.
Arctic Circle latitudes for the years 2000-2049, every 10 days. They are also suitable for the Antarctic Circle.
This page the year 2020, every 10 days. See subpages at the bottom of this page for more years:
"The table (NAPA2050) was calculated by Prof. Markku Poutanen (Finnish Geodetic Institute) using software written by Dr. Matti Ollikainen (already retired from FGI)."
"The used nutation formulas are taken from The Astronomical Almanac 1984, PP S23-26. The Improved IAU system)".
A copy was sent to me from the National Land Survey of Finland:
Latitude and movement of the Arctic Circle
Since [year,month,day,h,m,s]: 2000 1 1 0 0 0
Until [year,month,day,h,m,s]: 2050 1 1 0 0 0
Date UT B.Y Latitude Days Movement
Y M D H Min Sec (metres, meters)
2020 1 6 0 0 .00 2020.01 66 33 49.603 7310.00 163.8
2020 1 16 0 0 .00 2020.04 66 33 49.299 7320.00 154.4
2020 1 26 0 0 .00 2020.07 66 33 49.159 7330.00 150.0
2020 2 5 0 0 .00 2020.10 66 33 48.968 7340.00 144.1
2020 2 15 0 0 .00 2020.12 66 33 48.570 7350.00 131.8
2020 2 25 0 0 .00 2020.15 66 33 48.281 7360.00 122.8
2020 3 6 0 0 .00 2020.18 66 33 48.252 7370.00 122.0
2020 3 16 0 0 .00 2020.21 66 33 48.111 7380.00 117.6
2020 3 26 0 0 .00 2020.23 66 33 47.898 7390.00 111.0
2020 4 5 0 0 .00 2020.26 66 33 47.935 7400.00 112.1
2020 4 15 0 0 .00 2020.29 66 33 48.101 7410.00 117.3
2020 4 25 0 0 .00 2020.32 66 33 48.156 7420.00 119.0
2020 5 5 0 0 .00 2020.34 66 33 48.144 7430.00 118.6
2020 5 15 0 0 .00 2020.37 66 33 48.335 7440.00 124.5
2020 5 25 0 0 .00 2020.40 66 33 48.563 7450.00 131.6
2020 6 4 0 0 .00 2020.42 66 33 48.505 7460.00 129.8
2020 6 14 0 0 .00 2020.45 66 33 48.416 7470.00 127.0
2020 6 24 0 0 .00 2020.48 66 33 48.502 7480.00 129.7
2020 7 4 0 0 .00 2020.51 66 33 48.421 7490.00 127.2
2020 7 14 0 0 .00 2020.53 66 33 48.092 7500.00 117.0
2020 7 24 0 0 .00 2020.56 66 33 47.844 7510.00 109.3
2020 8 3 0 0 .00 2020.59 66 33 47.723 7520.00 105.6
2020 8 13 0 0 .00 2020.62 66 33 47.463 7530.00 97.5
2020 8 23 0 0 .00 2020.64 66 33 47.070 7540.00 85.3
2020 9 2 0 0 .00 2020.67 66 33 46.888 7550.00 79.7
2020 9 12 0 0 .00 2020.70 66 33 46.884 7560.00 79.6
2020 9 22 0 0 .00 2020.73 66 33 46.707 7570.00 74.1
2020 10 2 0 0 .00 2020.75 66 33 46.534 7580.00 68.7
2020 10 12 0 0 .00 2020.78 66 33 46.683 7590.00 73.4
2020 10 22 0 0 .00 2020.81 66 33 46.830 7600.00 77.9
2020 11 1 0 0 .00 2020.84 66 33 46.822 7610.00 77.6
2020 11 11 0 0 .00 2020.86 66 33 46.884 7620.00 79.6
2020 11 21 0 0 .00 2020.89 66 33 47.111 7630.00 86.6
2020 12 1 0 0 .00 2020.92 66 33 47.263 7640.00 91.3
2020 12 11 0 0 .00 2020.94 66 33 47.142 7650.00 87.6
2020 12 21 0 0 .00 2020.97 66 33 47.096 7660.00 86.1
2020 12 31 0 0 .00 2021.00 66 33 47.169 7670.00 88.4
The circumference of the Arctic Circle at the 2020 Northern Hemisphere summer solstice at UT 21:43 on 20 June at 66° 33’ 48.570” N, calculated in the WGS84 ellipsoid is predicted to be 15,984.242701272940 km or 9,932.147944300870 international miles or 8,630.800594639816 international nautical miles. Calculated in the WGS84 ellipsoid the area of the Arctic as defined by the Arctic Circle at the 2020 Northern Hemisphere summer solstice is predicted to be 21,204,911.158404 square km or 8,187,742.381930 square international miles.
Circumference 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 an email to me from Charles Karney: "The accuracy of 15 nanometers that I quote is for paths up to half-way round the earth." 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. Area 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."
Subpages:
Arctic Circle latitudes 2000-2004
Arctic Circle latitudes 2005-2009
Arctic Circle latitudes 2010-2014
Arctic Circle latitudes 2016-2019
Arctic Circle latitudes 2019-2024
Arctic Circle latitudes 2025-2029
Arctic Circle latitudes 2030-2034
Arctic Circle latitudes 2035-2039
Arctic Circle latitudes 2040-2044
Arctic Circle latitudes 2045-2049
This page the year 2020, every 10 days. See subpages at the bottom of this page for more years:
"The table (NAPA2050) was calculated by Prof. Markku Poutanen (Finnish Geodetic Institute) using software written by Dr. Matti Ollikainen (already retired from FGI)."
"The used nutation formulas are taken from The Astronomical Almanac 1984, PP S23-26. The Improved IAU system)".
A copy was sent to me from the National Land Survey of Finland:
Latitude and movement of the Arctic Circle
Since [year,month,day,h,m,s]: 2000 1 1 0 0 0
Until [year,month,day,h,m,s]: 2050 1 1 0 0 0
Date UT B.Y Latitude Days Movement
Y M D H Min Sec (metres, meters)
2020 1 6 0 0 .00 2020.01 66 33 49.603 7310.00 163.8
2020 1 16 0 0 .00 2020.04 66 33 49.299 7320.00 154.4
2020 1 26 0 0 .00 2020.07 66 33 49.159 7330.00 150.0
2020 2 5 0 0 .00 2020.10 66 33 48.968 7340.00 144.1
2020 2 15 0 0 .00 2020.12 66 33 48.570 7350.00 131.8
2020 2 25 0 0 .00 2020.15 66 33 48.281 7360.00 122.8
2020 3 6 0 0 .00 2020.18 66 33 48.252 7370.00 122.0
2020 3 16 0 0 .00 2020.21 66 33 48.111 7380.00 117.6
2020 3 26 0 0 .00 2020.23 66 33 47.898 7390.00 111.0
2020 4 5 0 0 .00 2020.26 66 33 47.935 7400.00 112.1
2020 4 15 0 0 .00 2020.29 66 33 48.101 7410.00 117.3
2020 4 25 0 0 .00 2020.32 66 33 48.156 7420.00 119.0
2020 5 5 0 0 .00 2020.34 66 33 48.144 7430.00 118.6
2020 5 15 0 0 .00 2020.37 66 33 48.335 7440.00 124.5
2020 5 25 0 0 .00 2020.40 66 33 48.563 7450.00 131.6
2020 6 4 0 0 .00 2020.42 66 33 48.505 7460.00 129.8
2020 6 14 0 0 .00 2020.45 66 33 48.416 7470.00 127.0
2020 6 24 0 0 .00 2020.48 66 33 48.502 7480.00 129.7
2020 7 4 0 0 .00 2020.51 66 33 48.421 7490.00 127.2
2020 7 14 0 0 .00 2020.53 66 33 48.092 7500.00 117.0
2020 7 24 0 0 .00 2020.56 66 33 47.844 7510.00 109.3
2020 8 3 0 0 .00 2020.59 66 33 47.723 7520.00 105.6
2020 8 13 0 0 .00 2020.62 66 33 47.463 7530.00 97.5
2020 8 23 0 0 .00 2020.64 66 33 47.070 7540.00 85.3
2020 9 2 0 0 .00 2020.67 66 33 46.888 7550.00 79.7
2020 9 12 0 0 .00 2020.70 66 33 46.884 7560.00 79.6
2020 9 22 0 0 .00 2020.73 66 33 46.707 7570.00 74.1
2020 10 2 0 0 .00 2020.75 66 33 46.534 7580.00 68.7
2020 10 12 0 0 .00 2020.78 66 33 46.683 7590.00 73.4
2020 10 22 0 0 .00 2020.81 66 33 46.830 7600.00 77.9
2020 11 1 0 0 .00 2020.84 66 33 46.822 7610.00 77.6
2020 11 11 0 0 .00 2020.86 66 33 46.884 7620.00 79.6
2020 11 21 0 0 .00 2020.89 66 33 47.111 7630.00 86.6
2020 12 1 0 0 .00 2020.92 66 33 47.263 7640.00 91.3
2020 12 11 0 0 .00 2020.94 66 33 47.142 7650.00 87.6
2020 12 21 0 0 .00 2020.97 66 33 47.096 7660.00 86.1
2020 12 31 0 0 .00 2021.00 66 33 47.169 7670.00 88.4
The circumference of the Arctic Circle at the 2020 Northern Hemisphere summer solstice at UT 21:43 on 20 June at 66° 33’ 48.570” N, calculated in the WGS84 ellipsoid is predicted to be 15,984.242701272940 km or 9,932.147944300870 international miles or 8,630.800594639816 international nautical miles. Calculated in the WGS84 ellipsoid the area of the Arctic as defined by the Arctic Circle at the 2020 Northern Hemisphere summer solstice is predicted to be 21,204,911.158404 square km or 8,187,742.381930 square international miles.
Circumference 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 an email to me from Charles Karney: "The accuracy of 15 nanometers that I quote is for paths up to half-way round the earth." 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. Area 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."
Subpages:
Arctic Circle latitudes 2000-2004
Arctic Circle latitudes 2005-2009
Arctic Circle latitudes 2010-2014
Arctic Circle latitudes 2016-2019
Arctic Circle latitudes 2019-2024
Arctic Circle latitudes 2025-2029
Arctic Circle latitudes 2030-2034
Arctic Circle latitudes 2035-2039
Arctic Circle latitudes 2040-2044
Arctic Circle latitudes 2045-2049
