Antipode of ‘Ohonua, Tonga
The opposite side of the world to ‘Ohonua is Tamanrasset, Algeria.
‘Ohonua
Tonga
Continent: Oceania
Coordinates: -21.333, -174.950
Antipodal point
Opposite side in the world
Continent: Oceania
Coordinates: 21.333, 5.050
Tamanrasset
Algeria
Tamanrasset is the closest city to ‘Ohonua's antipodal point (168 km).
The antipodal city to ‘Ohonua is Tamanrasset. This means that, among all the populated locations in the world, the farthest city from ‘Ohonua is Tamanrasset.
The distance from ‘Ohonua to Tamanrasset 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 ‘Ohonua
This table contains the populated locations that are closest to ‘Ohonua's antipode. These are the farthest cities in the world from ‘Ohonua.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Tamanrasset | Algeria | 168 km | (22.785, 5.523) |
| Arlit, Agadez | Niger | 377 km | (18.737, 7.385) |
| Ti-n-Essako, Kidal | Mali | 417 km | (18.451, 2.488) |
| Abeïbara, Kidal | Mali | 423 km | (19.117, 1.750) |
| Tessalit, Kidal | Mali | 439 km | (20.201, 1.012) |
| Kidal | Mali | 498 km | (18.441, 1.408) |
| Tchighozerine, Agadez | Niger | 537 km | (17.221, 7.761) |
| Alaghsas, Agadez | Niger | 570 km | (17.019, 8.017) |
| Agadez | Niger | 573 km | (16.973, 7.991) |
| Tchintabaraden, Tahoua | Niger | 607 km | (15.897, 5.799) |
‘Ohonua, Tonga
Local time:
Coordinates: 21.3333° S 174.95° W
Tamanrasset, Algeria
Local time:
Coordinates: 22.785° N 5.5228° E
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 ‘Ohonua
The DMS coordinates are: 21°19'60'' S 174°56'60'' W.
Calculations are easier by using the decimal format, hence:
LatO = -21.33333°
LngO = -174.95°
Step 2: Calculate the latitude
LatA = - LatO = 21.33333°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -174.95 + 180° = 5.05°
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 ‘Ohonua is located on coordinates: (LatA, LngA) = (21.33333, 5.05)
In DMS format: 21°19'60'' S 174°56'60'' W.
