The opposite side of the world to Đống Đa is Chanavayita, Tarapacá, Chile.
Vietnam
Continent: Asia
Coordinates: 21.013, 105.825
South Pacific Ocean
Exact location on the other side of the world
Coordinates: -21.013, -74.175
Chile
Chanavayita is the closest city to Đống Đa's antipodal point (416 km).
The antipodal city to Đống Đa is Chanavayita. This means that, among all the populated locations in the world, the farthest city from Đống Đa is Chanavayita.
The distance from Đống Đa to Chanavayita is about 20,000 kilometers. A direct flight would take around 22 hours, but there aren't commercial routes between these cities.
This table contains the populated locations that are closest to Đống Đa's antipode. These are the farthest cities in the world from Đống Đa.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Chanavayita, Tarapacá | Chile | 416 km | (-20.705, -70.189) |
| Iquique, Tarapacá | Chile | 429 km | (-20.213, -70.150) |
| Tocopilla, Antofagasta | Chile | 429 km | (-22.092, -70.198) |
| Alto Hospicio, Tarapacá | Chile | 432 km | (-20.269, -70.105) |
| Mejillones, Antofagasta | Chile | 449 km | (-23.100, -70.447) |
| Pozo Almonte, Tarapacá | Chile | 465 km | (-20.256, -69.786) |
| Cuya, Arica y Parinacota Region | Chile | 465 km | (-19.161, -70.180) |
| Baquedano, Tarapacá | Chile | 471 km | (-20.139, -69.754) |
| Huara, Tarapacá | Chile | 473 km | (-19.996, -69.772) |
| La Tirana, Tarapacá | Chile | 477 km | (-20.336, -69.657) |
Local time:
Time Zone: Asia/Bangkok
Coordinates: 21.013° N 105.825° E
Elevation: 16 m (52 ft)
Local time:
Time Zone: America/Santiago
Coordinates: 20.7052° S 70.1892° W
Elevation: 17 m (56 ft)
The antipode can be calculated by understanding the geographic coordinates and applying simple formulas. We will use the following variables:
Step 1: Obtain the geographic coordinates of Đống Đa
The DMS coordinates are: 21°0'46.8'' N 105°49'30'' E .
Calculations are easier by using the decimal format, hence:
LatO = 21.013°
LngO = 105.825°
Step 2: Calculate the latitude
LatA = - LatO = -21.013°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = 105.825 - 180° = -74.175°
Since the longitude is positive, we subtract 180° to ensure the final value lies between (-180, 180). If it were the other way around, we would sum 180° for the same reason.
Result:
The antipode of Đống Đa is located on coordinates: (LatA, LngA) = (-21.013, -74.175)
In DMS format: 21°0'46.8'' N 105°49'30'' E .