Antarctic circles of latitude
The following are circles of latitude between the 60th parallel south and the South Pole. Although the 55th parallel south, crossing the southernmost point of Chile, is the last line of latitude moving southward to touch any part of any continent other than Antarctica, the 60th parallel south defines the northern limit of the Antarctic Treaty System and thus the political boundary of Antarctica.
60th parallel south to 65th parallel south
61st parallel south
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The 61st parallel south is a circle of latitude that is 61 degrees south of the Earth's equatorial plane. No land lies on the parallel—it crosses nothing but the Southern Ocean.
At this latitude the sun is visible for 19 hours, 16 minutes during the December solstice and 5 hours, 32 minutes during the June solstice.[1] On the December solstice, the sun's altitude is 52.44 degrees and on the June solstice, it is 5.56 degrees.
The lowest latitude where civil twilight can last all night lies approximately on this parallel.
Starting at the Prime Meridian and heading eastwards, the parallel 61° south passes through:
Coordinates Ocean Notes 61°0′S 0°0′E / 61.000°S 0.000°E Southern Ocean South of the Atlantic Ocean 61°0′S 20°0′E / 61.000°S 20.000°E South of the Indian Ocean 61°0′S 147°0′E / 61.000°S 147.000°E South of the Pacific Ocean
Passing through the Drake Passage between South America and the Antarctic Peninsula61°0′S 67°16′W / 61.000°S 67.267°W South of the Atlantic Ocean
Passing just north of Elephant Island, and Clarence Island (claimed by File:Flag of Argentina.svg Argentina, File:Flag of Chile.svg Chile and File:Flag of the United Kingdom (1-2).svg United Kingdom)
Passing just south of the South Orkney Islands, File:Flag of South Georgia and the South Sandwich Islands.svg South Georgia and the South Sandwich Islands (claimed by File:Flag of Argentina.svg Argentina)
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62nd parallel south
The 62nd parallel south is a circle of latitude that is 62 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
At this latitude the sun is visible for 19 hours, 45 minutes during the December solstice and 5 hours, 9 minutes during the June solstice.[2]
Starting at the Prime Meridian and heading eastwards, the parallel 62° south passes through:
Coordinates Continent or ocean Notes 62°0′S 0°0′E / 62.000°S 0.000°E Southern Ocean South of the Atlantic Ocean 62°0′S 20°0′E / 62.000°S 20.000°E South of the Indian Ocean 62°0′S 147°0′E / 62.000°S 147.000°E South of the Pacific Ocean
Passing through the Drake Passage between South America and the Antarctic Peninsula62°0′S 67°16′W / 62.000°S 67.267°W South of the Atlantic Ocean 62°0′S 58°36′W / 62.000°S 58.600°W Antarctica King George Island, claimed by File:Flag of Argentina.svg Argentina, File:Flag of Chile.svg Chile and File:Flag of the United Kingdom (1-2).svg United Kingdom 62°0′S 57°39′W / 62.000°S 57.650°W Southern Ocean South of the Atlantic Ocean
63rd parallel south
The 63rd parallel south is a circle of latitude that is 63 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
At this latitude the sun is visible for 20 hours, 19 minutes during the December solstice and 4 hours, 42 minutes during the June solstice. If the latitude in the southern hemisphere is 63°26' or smaller, it is possible to view both astronomical dawn and dusk every day of the month of March.[3]
Starting at the Prime Meridian and heading eastwards, the parallel 63° south passes through:
64th parallel south
The 64th parallel south is a circle of latitude that is 64 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and the Antarctic mainland, the latter as the most northern latitude.
At this latitude the sun is visible for 21 hours, 1 minute during the December solstice and 4 hours, 12 minutes during the June solstice.[4]
Starting at the Prime Meridian and heading eastwards, the parallel 64° south passes through:
Coordinates Continent or ocean Notes 64°0′S 0°0′E / 64.000°S 0.000°E Southern Ocean South of the Atlantic Ocean 64°0′S 20°0′E / 64.000°S 20.000°E South of the Indian Ocean 64°0′S 147°0′E / 64.000°S 147.000°E South of the Pacific Ocean 64°0′S 67°16′W / 64.000°S 67.267°W South of the Atlantic Ocean
Passing just north of Brabant Island, Antarctica64°0′S 60°35′W / 64.000°S 60.583°W Antarctica Antarctic Peninsula and James Ross Island, claimed by File:Flag of Argentina.svg Argentina, File:Flag of Chile.svg Chile and File:Flag of the United Kingdom (1-2).svg United Kingdom 64°0′S 57°31′W / 64.000°S 57.517°W Southern Ocean South of the Atlantic Ocean
65th parallel south
The 65th parallel south is a circle of latitude that is 65 degrees south of the Earth's equatorial plane. It crosses the Southern Ocean and Antarctica.
At this latitude the sun is visible for 22 hours, 2 minutes during the December solstice and 3 hours, 35 minutes during the June solstice.[5]
Starting at the Prime Meridian and heading eastwards, the parallel 65° south passes through:
Coordinates Continent or ocean Notes 65°0′S 0°0′E / 65.000°S 0.000°E Southern Ocean South of the Atlantic Ocean 65°0′S 20°0′E / 65.000°S 20.000°E South of the Indian Ocean 65°0′S 147°0′E / 65.000°S 147.000°E South of the Pacific Ocean 65°0′S 67°16′W / 65.000°S 67.267°W South of the Atlantic Ocean 65°0′S 63°12′W / 65.000°S 63.200°W Antarctica Antarctic Peninsula, claimed by File:Flag of Argentina.svg Argentina, File:Flag of Chile.svg Chile and File:Flag of the United Kingdom (1-2).svg United Kingdom 65°0′S 59°3′W / 65.000°S 59.050°W Southern Ocean South of the Atlantic Ocean
65th parallel south to 70th parallel south
66th parallel south
The 66th parallel south is a circle of latitude that is 66 degrees south of the Earth's equatorial plane, about 61 km north of the Antarctic Circle. It crosses the Southern Ocean and Antarctica.
This latitude also roughly corresponds to the minimum latitude in which midnight sun can last all night near the summer solstice.
At this latitude the sun rises on December 13 and does not set again until December 30.[6]
Starting at the Prime Meridian and heading eastwards, the parallel 66° south passes through:
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67th parallel south
The 67th parallel south is a circle of latitude that is 67 degrees south of the Earth's equatorial plane, about 50 km south of the Antarctic Circle. It crosses the Southern Ocean and Antarctica.
At this latitude the sun is visible for 24 hours during the December solstice (Summer solstice) and 1 hour, 29 minutes during the June solstice (Winter solstice). If the latitude in the southern hemisphere is 67°45′ or smaller, every day of the month of September can view both astronomical dawn and astronomical dusk.
Starting at the Prime Meridian and heading eastwards, the parallel 67° south passes through:
68th parallel south
The 68th parallel south is a circle of latitude that is 68 degrees south of the Earth's equatorial plane, in the Antarctic. It crosses the Southern Ocean and Antarctica. At this latitude, the sun is visible for 24 hours during the December Solstice, and civil twilight during the June Solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 68° south passes through:
69th parallel south
The 69th parallel south is a circle of latitude that is 69 degrees south of the Earth's equatorial plane, in the Antarctic. It crosses the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 69° south passes through:
70th parallel south
The 70th parallel south is a circle of latitude that is 70 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 70° south passes through:
70th parallel south to 75th parallel south
71st parallel south
The 71st parallel south is a circle of latitude that is 71 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 71° south passes through:
72nd parallel south
The 72nd parallel south is a circle of latitude that is 72 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
This is the parallel where twilight/nighttime boundary on the equinoxes.
This is also the lowest parallel that golden hour occurs even at midnight sun, because the Sun is less than 6°00'00" above the horizon. Midnight sun without golden hour occurs at latitudes greater than 72°33'38.58804", i.e., about 666.8 km (414.3 mi) south of the Antarctic Circle in the case of the December Solstice.
Starting at the Prime Meridian and heading eastwards, the parallel 72° south passes through:
73rd parallel south
The 73rd parallel south is a circle of latitude that is 73 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 73° south passes through:
74th parallel south
The 74th parallel south is a circle of latitude that is 74 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 74° south passes through:
75th parallel south
The 75th parallel south is a circle of latitude that is 75 degrees south of the Earth's equatorial plane in the Antarctic. It passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 75° south passes through:
75th parallel south to 80th parallel south
76th parallel south
The 76th parallel south is a circle of latitude that is 76 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 76° south passes through:
77th parallel south
The 77th parallel south is a circle of latitude that is 77 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 77° south passes through:
78th parallel south
The 78th parallel south is a circle of latitude that is 78 degrees south of the Earth's equatorial plane in the Antarctic. The parallel passes through the Southern Ocean and Antarctica.
Starting at the Prime Meridian and heading eastwards, the parallel 78° south passes through:
79th parallel south
The 79th parallel south is a circle of latitude that is 79 degrees south of the Earth's equatorial plane in the Antarctic.
The parallel passes only through Antarctica and Antarctic ice shelves.
Starting at the Prime Meridian and heading eastwards, the parallel 79° south passes through:
80th parallel south
The 80th parallel south is a circle of latitude that is 80 degrees south of the Earth's equatorial plane, and 10 degrees (690 miles/1100 kilometers) north of the United States Amundsen–Scott South Pole Station. Regions south of this latitude are excluded from UTM zones.
This line of latitude passes only through Antarctica and Antarctic ice shelves.
Starting at the Prime Meridian and heading eastwards, the parallel 80° south passes through:
80th parallel south to 85th parallel south
81st parallel south
82nd parallel south
83rd parallel south
84th parallel south
85th parallel south
85th parallel south to South Pole
86th parallel south
87th parallel south
88th parallel south
89th parallel south
See also
- Antarctica
- Circles of latitude between the 50th parallel south and the 60th parallel south
- South Pole
Notes
References
- ↑ "Duration of Daylight for 2016: Zone: 2h West of Greenwich". Archived from the original on October 12, 2016.
- ↑ "Duration of Daylight for 2016: Zone: 2h West of Greenwich". Archived from the original on May 10, 2017.
- ↑ "Duration of Daylight for 2016: Zone: 2h West of Greenwich". Archived from the original on May 10, 2017.
- ↑ "Duration of Daylight for 2016: Zone: 2h West of Greenwich". Archived from the original on May 10, 2017.
- ↑ "Daylight or Darkness Duration Table for One Year". aa.usno.navy.mil. Archived from the original on 2016-10-12. Retrieved 2016-08-30.
- ↑ "Duration of Daylight for 2016: Zone: 2h West of Greenwich". Archived from the original on May 10, 2017.