Antarctic Circle
E41341
The Antarctic Circle is an imaginary line of latitude encircling the Earth near the South Pole, marking the region where, at least once a year, there is 24 hours of continuous daylight or darkness.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geographical boundary
→
imaginary line → line of latitude → |
| approximateLatitude |
66.5 degrees south
→
66°33′47.2″ S → |
| axialTiltApproximation |
23.4 degrees
→
|
| category |
Antarctic region
→
Imaginary lines on Earth → Lines of latitude → |
| centeredOn |
South Pole
→
|
| climaticZone |
polar climate zone
→
|
| coordinateSystem |
geographic coordinate system
→
|
| definedBy |
Earth axial tilt
→
|
| definesRegion |
Antarctic
→
Antarctic Zone → |
| dependsOn |
obliquity of the ecliptic
→
|
| distanceFromEquatorApprox |
about 7,400 km
→
|
| distanceFromSouthPoleApprox |
about 2,600 km
→
|
| encloses |
Antarctica
→
|
| governsDaylightPatternFor |
high southern latitudes
→
|
| hasOppositeSeasonalEffectTo |
Arctic Circle
→
|
| hemisphere |
south
→
|
| latitudeFormula |
90° − Earth axial tilt
→
|
| locatedIn |
Southern Hemisphere
→
|
| marksLimitOf |
polar day
→
polar night → |
| movementCause |
long-term variations in Earth axial tilt
→
|
| movementRate |
roughly 10–15 meters per year
→
|
| movesOverTime |
yes
→
|
| oppositeOf |
Arctic Circle
→
|
| parallelOfLatitude |
yes
→
|
| partOf |
Earth parallels system
→
|
| passesNear |
Antarctic Peninsula
→
|
| passesThrough |
Southern Ocean
→
|
| property |
within this circle there is at least one 24-hour period of continuous darkness each year
→
within this circle there is at least one 24-hour period of continuous daylight each year → |
| relatedTo |
Equator
→
Tropic of Cancer → Tropic of Capricorn → |
| seasonOfMidnightSun |
austral summer
→
|
| seasonOfPolarNight |
austral winter
→
|
| solarPhenomenon |
midnight sun
→
polar night → |
| usedIn |
astronomy
→
cartography → climatology → navigation → |
Referenced by (3)
| Subject (surface form when different) | Predicate |
|---|---|
|
Southern Hemisphere
→
|
contains |
|
Midnight Sun
→
|
occursIn |
|
Arctic Circle
→
|
relatedCircle |