Antipode of Black River, Jamaica
The opposite side of the world to Black River is West Island, Cocos Islands.
Black River
Jamaica
Continent: America
Coordinates: 18.026, -77.849
Antipodal point
Indian Ocean
Exact location on the other side of the world
Coordinates: -18.026, 102.151
West Island
Cocos Islands
West Island is the closest city to Black River's antipodal point (866 km).
The antipodal city to Black River is West Island. This means that, among all the populated locations in the world, the farthest city from Black River is West Island.
The distance from Black River to West Island is about 19,000 kilometers. A direct flight would take around 21 hours, but there aren't commercial routes between these cities.
Cities on the other side of the world of Black River
This table contains the populated locations that are closest to Black River's antipode. These are the farthest cities in the world from Black River.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| West Island | Cocos Islands | 866 km | (-12.157, 96.823) |
| Flying Fish Cove | Christmas Island | 923 km | (-10.422, 105.679) |
| Cibungur, West Java | Indonesia | 1,271 km | (-7.372, 106.539) |
| Simpenan, West Java | Indonesia | 1,272 km | (-7.350, 106.514) |
| Pondokaso, West Java | Indonesia | 1,273 km | (-7.356, 106.542) |
| Rancaerang, West Java | Indonesia | 1,273 km | (-7.422, 106.718) |
| Buniasih, West Java | Indonesia | 1,273 km | (-7.423, 106.723) |
| Mekarjaya Satu, West Java | Indonesia | 1,274 km | (-7.412, 106.701) |
| Cikujang, West Java | Indonesia | 1,274 km | (-7.359, 106.573) |
| Tegalbuleud, West Java | Indonesia | 1,274 km | (-7.426, 106.745) |
Black River, Jamaica
Local time:
Coordinates: 18.0264° N 77.8487° W
West Island, Cocos Islands
Local time:
Coordinates: 12.1568° S 96.8225° E
How to calculate the antipodal point?
The antipode can be calculated by understanding the geographic coordinates and applying simple formulas. We will use the following variables:
- LatO: Latitude at the origin point.
- LngO: Longitude at the origin point.
- LatA: Latitude at the antipodal point.
- LngA: Longitude at the antipodal point.
Step 1: Obtain the geographic coordinates of Black River
The DMS coordinates are: 18°1'34.9'' N 77°50'55.4'' W.
Calculations are easier by using the decimal format, hence:
LatO = 18.02636°
LngO = -77.84873°
Step 2: Calculate the latitude
LatA = - LatO = -18.02636°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -77.84873 + 180° = 102.15127°
Since the longitude is negative, we sum 180° to ensure the final value lies between (-180, 180). If it were the other way around, we would subtract 180° for the same reason.
Result:
The antipode of Black River is located on coordinates: (LatA, LngA) = (-18.02636, 102.15127)
In DMS format: 18°1'34.9'' N 77°50'55.4'' W.
