Antipode of Popua, Tonga
The opposite side of the world to Popua is Tamanghasset, Tamanrasset, Algeria.
Popua
Tonga
Continent: Oceania
Coordinates: -21.153, -175.179
Antipodal point
Algeria
Continent: Africa
Coordinates: 21.153, 4.821
Tamanghasset
Algeria
Tamanghasset is the closest city to Popua's antipodal point (195 km).
The antipodal city to Popua is Tamanghasset. This means that, among all the populated locations in the world, the farthest city from Popua is Tamanghasset.
The distance from Popua to Tamanghasset 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 Popua
This table contains the populated locations that are closest to Popua's antipode. These are the farthest cities in the world from Popua.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Tamanghasset, Tamanrasset | Algeria | 195 km | (22.785, 5.523) |
| In Guezzam | Algeria | 201 km | (19.574, 5.768) |
| Timiaouine, Bordj Badji Mokhtar | Algeria | 324 km | (20.441, 1.806) |
| Arlit, Agadez | Niger | 379 km | (18.737, 7.385) |
| Ti-n-Essako, Kidal | Mali | 386 km | (18.451, 2.488) |
| Abeïbara, Kidal | Mali | 392 km | (19.117, 1.750) |
| Tessalit, Kidal | Mali | 411 km | (20.201, 1.012) |
| Iferouâne, Agadez | Niger | 442 km | (19.063, 8.420) |
| Kidal | Mali | 467 km | (18.443, 1.409) |
| Tassara, Tahoua Region | Niger | 489 km | (16.805, 5.644) |
Local time:
Time Zone: Pacific/Tongatapu
Coordinates: 21.1532° S 175.1789° W
Elevation: 1 m (3 ft)
Local time:
Time Zone: Africa/Algiers
Coordinates: 22.785° N 5.5228° E
Elevation: 1,372 m (4,501 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 Popua
The DMS coordinates are: 21°9'11.5'' S 175°10'44'' W.
Calculations are easier by using the decimal format, hence:
LatO = -21.1532°
LngO = -175.1789°
Step 2: Calculate the latitude
LatA = - LatO = 21.1532°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -175.1789 + 180° = 4.8211°
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 Popua is located on coordinates: (LatA, LngA) = (21.1532, 4.8211)
In DMS format: 21°9'11.5'' S 175°10'44'' W.