Antipode of Tena, Ecuador
The opposite side of the world to Tena is Siak Sri Indrapura, Riau, Indonesia.
Tena
Ecuador
Continent: South America
Coordinates: -0.994, -77.813
Antipodal point
Opposite side in the world
Continent: South America
Coordinates: 0.994, 102.187
Siak Sri Indrapura
Indonesia
Siak Sri Indrapura is the closest city to Tena's antipodal point (27 km).
The antipodal city to Tena is Siak Sri Indrapura. This means that, among all the populated locations in the world, the farthest city from Tena is Siak Sri Indrapura.
The distance from Tena to Siak Sri Indrapura 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 Tena
This table contains the populated locations that are closest to Tena's antipode. These are the farthest cities in the world from Tena.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Siak Sri Indrapura, Riau | Indonesia | 27 km | (0.793, 102.051) |
| Bengkalis, Riau | Indonesia | 53 km | (1.467, 102.133) |
| Selat Panjang, Riau | Indonesia | 58 km | (0.994, 102.708) |
| Pangkalan Kerinci, Riau | Indonesia | 76 km | (0.396, 101.857) |
| Pangkalanbunut, Riau | Indonesia | 77 km | (0.298, 102.146) |
| Pekanbaru, Riau | Indonesia | 98 km | (0.517, 101.442) |
| Balaipungut, Riau | Indonesia | 100 km | (1.059, 101.291) |
| Batu Panjang, Riau | Indonesia | 109 km | (1.712, 101.514) |
| Tanjung Palas, Riau | Indonesia | 110 km | (1.679, 101.470) |
| Bagan Besar, Riau | Indonesia | 110 km | (1.582, 101.387) |
Tena, Ecuador
Local time:
Coordinates: 0.9938° S 77.8129° W
Siak Sri Indrapura, Indonesia
Local time:
Coordinates: 0.7932° N 102.0511° 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 Tena
The DMS coordinates are: 0°59'37.7'' S 77°48'46.3'' W.
Calculations are easier by using the decimal format, hence:
LatO = -0.9938°
LngO = -77.81286°
Step 2: Calculate the latitude
LatA = - LatO = 0.9938°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -77.81286 + 180° = 102.18714°
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 Tena is located on coordinates: (LatA, LngA) = (0.9938, 102.18714)
In DMS format: 0°59'37.7'' S 77°48'46.3'' W.
