Antipode of Umm Hājar, Chad
The opposite side of the world to Umm Hājar is Avarua, Rarotonga, Cook Islands.
Umm Hājar
Chad
Continent: Africa
Coordinates: 13.295, 19.697
Antipodal point
South Pacific Ocean
Exact location on the other side of the world
Coordinates: -13.295, -160.303
Avarua
Cook Islands
Avarua is the closest city to Umm Hājar's antipodal point (877 km).
The antipodal city to Umm Hājar is Avarua. This means that, among all the populated locations in the world, the farthest city from Umm Hājar is Avarua.
The distance from Umm Hājar to Avarua 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 Umm Hājar
This table contains the populated locations that are closest to Umm Hājar's antipode. These are the farthest cities in the world from Umm Hājar.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Avarua, Rarotonga | Cook Islands | 877 km | (-21.208, -159.775) |
| Vaitape, Leeward Islands | French Polynesia | 986 km | (-16.507, -151.749) |
| Faanui, Leeward Islands | French Polynesia | 987 km | (-16.487, -151.741) |
| Anau, Leeward Islands | French Polynesia | 989 km | (-16.501, -151.721) |
| Faleāsao, Manu'a | American Samoa | 1,001 km | (-14.222, -169.513) |
| Ta`ū, Manu'a | American Samoa | 1,001 km | (-14.234, -169.514) |
| Ofu, Manu'a | American Samoa | 1,019 km | (-14.171, -169.679) |
| Tevaitoa, Leeward Islands | French Polynesia | 1,023 km | (-16.791, -151.489) |
| Uturoa, Leeward Islands | French Polynesia | 1,026 km | (-16.730, -151.443) |
| Fare, Leeward Islands | French Polynesia | 1,066 km | (-16.712, -151.035) |
Local time:
Time Zone: Africa/Ndjamena
Coordinates: 13.2954° N 19.6966° E
Elevation: 397 m (1,302 ft)
Local time:
Time Zone: Pacific/Rarotonga
Coordinates: 21.2075° S 159.7755° W
Elevation: 7 m (23 ft)
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 Umm Hājar
The DMS coordinates are: 13°17'43.4'' N 19°41'47.8'' E .
Calculations are easier by using the decimal format, hence:
LatO = 13.2954°
LngO = 19.6966°
Step 2: Calculate the latitude
LatA = - LatO = -13.2954°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = 19.6966 - 180° = -160.3034°
Since the longitude is positive, we subtract 180° to ensure the final value lies between (-180, 180). If it were the other way around, we would sum 180° for the same reason.
Result:
The antipode of Umm Hājar is located on coordinates: (LatA, LngA) = (-13.2954, -160.3034)
In DMS format: 13°17'43.4'' N 19°41'47.8'' E .