Antipode of Longoteme, Tonga
The opposite side of the world to Longoteme is Tamanghasset, Tamanrasset, Algeria.
Longoteme
Tonga
Continent: Oceania
Coordinates: -21.181, -175.170
Antipodal point
Algeria
Continent: Africa
Coordinates: 21.181, 4.830
Tamanghasset
Algeria
Tamanghasset is the closest city to Longoteme's antipodal point (192 km).
The antipodal city to Longoteme is Tamanghasset. This means that, among all the populated locations in the world, the farthest city from Longoteme is Tamanghasset.
The distance from Longoteme 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 Longoteme
This table contains the populated locations that are closest to Longoteme's antipode. These are the farthest cities in the world from Longoteme.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Tamanghasset, Tamanrasset | Algeria | 192 km | (22.785, 5.523) |
| In Guezzam | Algeria | 203 km | (19.574, 5.768) |
| Timiaouine, Bordj Badji Mokhtar | Algeria | 325 km | (20.441, 1.806) |
| Arlit, Agadez | Niger | 380 km | (18.737, 7.385) |
| Ti-n-Essako, Kidal | Mali | 389 km | (18.451, 2.488) |
| Abeïbara, Kidal | Mali | 395 km | (19.117, 1.750) |
| Tessalit, Kidal | Mali | 412 km | (20.201, 1.012) |
| Iferouâne, Agadez | Niger | 443 km | (19.063, 8.420) |
| Kidal | Mali | 469 km | (18.443, 1.409) |
| Tassara, Tahoua Region | Niger | 492 km | (16.805, 5.644) |
Local time:
Time Zone: Pacific/Tongatapu
Coordinates: 21.1807° S 175.1698° W
Elevation: 14 m (46 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 Longoteme
The DMS coordinates are: 21°10'50.5'' S 175°10'11.4'' W.
Calculations are easier by using the decimal format, hence:
LatO = -21.1807°
LngO = -175.16982°
Step 2: Calculate the latitude
LatA = - LatO = 21.1807°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -175.16982 + 180° = 4.83018°
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 Longoteme is located on coordinates: (LatA, LngA) = (21.1807, 4.83018)
In DMS format: 21°10'50.5'' S 175°10'11.4'' W.