Antipode of Lapaha, Tonga
The opposite side of the world to Lapaha is Tamanghasset, Tamanrasset, Algeria.
Lapaha
Tonga
Continent: Oceania
Coordinates: -21.177, -175.117
Antipodal point
Algeria
Continent: Africa
Coordinates: 21.177, 4.883
Tamanghasset
Algeria
Tamanghasset is the closest city to Lapaha's antipodal point (190 km).
The antipodal city to Lapaha is Tamanghasset. This means that, among all the populated locations in the world, the farthest city from Lapaha is Tamanghasset.
The distance from Lapaha 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 Lapaha
This table contains the populated locations that are closest to Lapaha's antipode. These are the farthest cities in the world from Lapaha.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Tamanghasset, Tamanrasset | Algeria | 190 km | (22.785, 5.523) |
| In Guezzam | Algeria | 200 km | (19.574, 5.768) |
| Timiaouine, Bordj Badji Mokhtar | Algeria | 331 km | (20.441, 1.806) |
| Arlit, Agadez | Niger | 376 km | (18.737, 7.385) |
| Ti-n-Essako, Kidal | Mali | 392 km | (18.451, 2.488) |
| Abeïbara, Kidal | Mali | 399 km | (19.117, 1.750) |
| Tessalit, Kidal | Mali | 418 km | (20.201, 1.012) |
| Iferouâne, Agadez | Niger | 438 km | (19.063, 8.420) |
| Kidal | Mali | 473 km | (18.443, 1.409) |
| Tassara, Tahoua Region | Niger | 491 km | (16.805, 5.644) |
Local time:
Time Zone: Pacific/Tongatapu
Coordinates: 21.1774° S 175.1172° W
Elevation: 8 m (26 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 Lapaha
The DMS coordinates are: 21°10'38.5'' S 175°7'1.9'' W.
Calculations are easier by using the decimal format, hence:
LatO = -21.17735°
LngO = -175.1172°
Step 2: Calculate the latitude
LatA = - LatO = 21.17735°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -175.1172 + 180° = 4.8828°
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 Lapaha is located on coordinates: (LatA, LngA) = (21.17735, 4.8828)
In DMS format: 21°10'38.5'' S 175°7'1.9'' W.