Antipode of Si’umu, Samoa
The opposite side of the world to Si’umu is Tessaoua, Maradi Region, Niger.
Si’umu
Samoa
Continent: Oceania
Coordinates: -14.009, -171.777
Antipodal point
Niger
Continent: Africa
Coordinates: 14.009, 8.223
Tessaoua
Niger
Tessaoua is the closest city to Si’umu's antipodal point (38 km).
The antipodal city to Si’umu is Tessaoua. This means that, among all the populated locations in the world, the farthest city from Si’umu is Tessaoua.
The distance from Si’umu to Tessaoua is about 20,000 kilometers. A direct flight would take around 22 hours, but there aren't commercial routes between these cities.
Cities on the other side of the world of Si’umu
This table contains the populated locations that are closest to Si’umu's antipode. These are the farthest cities in the world from Si’umu.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Tessaoua, Maradi Region | Niger | 38 km | (13.757, 7.987) |
| Takiéta, Zinder Region | Niger | 49 km | (13.681, 8.529) |
| Kantché, Zinder Region | Niger | 58 km | (13.539, 8.463) |
| Mayahi, Maradi Region | Niger | 60 km | (13.955, 7.671) |
| Gazaoua, Maradi Region | Niger | 63 km | (13.526, 7.914) |
| Matamey, Zinder Region | Niger | 70 km | (13.423, 8.475) |
| Aguié, Maradi Region | Niger | 74 km | (13.506, 7.779) |
| Bélbéji, Zinder Region | Niger | 78 km | (14.677, 7.983) |
| Zinder, Zinder Region | Niger | 86 km | (13.807, 8.988) |
| Dankama, Katsina State | Nigeria | 91 km | (13.298, 7.795) |
Local time:
Time Zone: Pacific/Apia
Coordinates: 14.0094° S 171.7768° W
Elevation: 21 m (69 ft)
Local time:
Time Zone: Africa/Niamey
Coordinates: 13.7574° N 7.9874° E
Elevation: 400 m (1,312 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 Si’umu
The DMS coordinates are: 14°0'33.9'' S 171°46'36.6'' W.
Calculations are easier by using the decimal format, hence:
LatO = -14.00943°
LngO = -171.77682°
Step 2: Calculate the latitude
LatA = - LatO = 14.00943°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -171.77682 + 180° = 8.22318°
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 Si’umu is located on coordinates: (LatA, LngA) = (14.00943, 8.22318)
In DMS format: 14°0'33.9'' S 171°46'36.6'' W.