Arctic Circle and Antarctic Circle latitudes 2018 +/-.
Arctic Circle latitudes for the years 2000-2049, every 10 days. They are also suitable for the Antarctic Circle.
This page the year 2018, 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)
2018 1 6 0 0 .00 2018.02 66 33 54.123 6580.00 303.8
2018 1 16 0 0 .00 2018.04 66 33 54.070 6590.00 302.2
2018 1 26 0 0 .00 2018.07 66 33 53.770 6600.00 292.9
2018 2 5 0 0 .00 2018.10 66 33 53.421 6610.00 282.1
2018 2 15 0 0 .00 2018.12 66 33 53.269 6620.00 277.4
2018 2 25 0 0 .00 2018.15 66 33 53.129 6630.00 273.0
2018 3 7 0 0 .00 2018.18 66 33 52.855 6640.00 264.5
2018 3 17 0 0 .00 2018.21 66 33 52.688 6650.00 259.4
2018 3 27 0 0 .00 2018.23 66 33 52.757 6660.00 261.5
2018 4 6 0 0 .00 2018.26 66 33 52.813 6670.00 263.2
2018 4 16 0 0 .00 2018.29 66 33 52.764 6680.00 261.7
2018 4 26 0 0 .00 2018.32 66 33 52.874 6690.00 265.1
2018 5 6 0 0 .00 2018.34 66 33 53.152 6700.00 273.7
2018 5 16 0 0 .00 2018.37 66 33 53.263 6710.00 277.2
2018 5 26 0 0 .00 2018.40 66 33 53.255 6720.00 276.9
2018 6 5 0 0 .00 2018.43 66 33 53.390 6730.00 281.1
2018 6 15 0 0 .00 2018.45 66 33 53.510 6740.00 284.8
2018 6 25 0 0 .00 2018.48 66 33 53.379 6750.00 280.8
2018 7 5 0 0 .00 2018.51 66 33 53.177 6760.00 274.5
2018 7 15 0 0 .00 2018.54 66 33 53.090 6770.00 271.8
2018 7 25 0 0 .00 2018.56 66 33 52.950 6780.00 267.5
2018 8 4 0 0 .00 2018.59 66 33 52.589 6790.00 256.3
2018 8 14 0 0 .00 2018.62 66 33 52.290 6800.00 247.0
2018 8 24 0 0 .00 2018.65 66 33 52.192 6810.00 244.0
2018 9 3 0 0 .00 2018.67 66 33 52.008 6820.00 238.3
2018 9 13 0 0 .00 2018.70 66 33 51.733 6830.00 229.8
2018 9 23 0 0 .00 2018.73 66 33 51.656 6840.00 227.4
2018 10 3 0 0 .00 2018.75 66 33 51.762 6850.00 230.7
2018 10 13 0 0 .00 2018.78 66 33 51.753 6860.00 230.4
2018 10 23 0 0 .00 2018.81 66 33 51.719 6870.00 229.3
2018 11 2 0 0 .00 2018.84 66 33 51.908 6880.00 235.2
2018 11 12 0 0 .00 2018.86 66 33 52.151 6890.00 242.7
2018 11 22 0 0 .00 2018.89 66 33 52.185 6900.00 243.8
2018 12 2 0 0 .00 2018.92 66 33 52.196 6910.00 244.1
2018 12 12 0 0 .00 2018.95 66 33 52.358 6920.00 249.1
2018 12 22 0 0 .00 2018.97 66 33 52.392 6930.00 250.2
The circumference of the Arctic Circle, at the 2018 Northern Hemisphere summer solstice, at UT 10 07 00:000, on 21 June, is predicted to be 66° 33’ 53.296” N, calculated in the WGS84 ellipsoid, is predicted to be 15,983.398753408930 km or 9,931.623539410424 international miles or 8,630.344899248882 international nautical miles. Calculated in the WGS84 ellipsoid, the area of the Arctic as defined by the Arctic Circle, at the 2018 Northern Hemisphere summer solstice, is predicted to be 21,203,815.464902 square km or 8,186,838.920334 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 0.000059 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. 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 2018, 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)
2018 1 6 0 0 .00 2018.02 66 33 54.123 6580.00 303.8
2018 1 16 0 0 .00 2018.04 66 33 54.070 6590.00 302.2
2018 1 26 0 0 .00 2018.07 66 33 53.770 6600.00 292.9
2018 2 5 0 0 .00 2018.10 66 33 53.421 6610.00 282.1
2018 2 15 0 0 .00 2018.12 66 33 53.269 6620.00 277.4
2018 2 25 0 0 .00 2018.15 66 33 53.129 6630.00 273.0
2018 3 7 0 0 .00 2018.18 66 33 52.855 6640.00 264.5
2018 3 17 0 0 .00 2018.21 66 33 52.688 6650.00 259.4
2018 3 27 0 0 .00 2018.23 66 33 52.757 6660.00 261.5
2018 4 6 0 0 .00 2018.26 66 33 52.813 6670.00 263.2
2018 4 16 0 0 .00 2018.29 66 33 52.764 6680.00 261.7
2018 4 26 0 0 .00 2018.32 66 33 52.874 6690.00 265.1
2018 5 6 0 0 .00 2018.34 66 33 53.152 6700.00 273.7
2018 5 16 0 0 .00 2018.37 66 33 53.263 6710.00 277.2
2018 5 26 0 0 .00 2018.40 66 33 53.255 6720.00 276.9
2018 6 5 0 0 .00 2018.43 66 33 53.390 6730.00 281.1
2018 6 15 0 0 .00 2018.45 66 33 53.510 6740.00 284.8
2018 6 25 0 0 .00 2018.48 66 33 53.379 6750.00 280.8
2018 7 5 0 0 .00 2018.51 66 33 53.177 6760.00 274.5
2018 7 15 0 0 .00 2018.54 66 33 53.090 6770.00 271.8
2018 7 25 0 0 .00 2018.56 66 33 52.950 6780.00 267.5
2018 8 4 0 0 .00 2018.59 66 33 52.589 6790.00 256.3
2018 8 14 0 0 .00 2018.62 66 33 52.290 6800.00 247.0
2018 8 24 0 0 .00 2018.65 66 33 52.192 6810.00 244.0
2018 9 3 0 0 .00 2018.67 66 33 52.008 6820.00 238.3
2018 9 13 0 0 .00 2018.70 66 33 51.733 6830.00 229.8
2018 9 23 0 0 .00 2018.73 66 33 51.656 6840.00 227.4
2018 10 3 0 0 .00 2018.75 66 33 51.762 6850.00 230.7
2018 10 13 0 0 .00 2018.78 66 33 51.753 6860.00 230.4
2018 10 23 0 0 .00 2018.81 66 33 51.719 6870.00 229.3
2018 11 2 0 0 .00 2018.84 66 33 51.908 6880.00 235.2
2018 11 12 0 0 .00 2018.86 66 33 52.151 6890.00 242.7
2018 11 22 0 0 .00 2018.89 66 33 52.185 6900.00 243.8
2018 12 2 0 0 .00 2018.92 66 33 52.196 6910.00 244.1
2018 12 12 0 0 .00 2018.95 66 33 52.358 6920.00 249.1
2018 12 22 0 0 .00 2018.97 66 33 52.392 6930.00 250.2
The circumference of the Arctic Circle, at the 2018 Northern Hemisphere summer solstice, at UT 10 07 00:000, on 21 June, is predicted to be 66° 33’ 53.296” N, calculated in the WGS84 ellipsoid, is predicted to be 15,983.398753408930 km or 9,931.623539410424 international miles or 8,630.344899248882 international nautical miles. Calculated in the WGS84 ellipsoid, the area of the Arctic as defined by the Arctic Circle, at the 2018 Northern Hemisphere summer solstice, is predicted to be 21,203,815.464902 square km or 8,186,838.920334 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 0.000059 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. 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