The opposite side of the world to Castro Valley is Port-aux-Français, Kerguelen, French Southern Territories.
United States
Continent: America
Coordinates: 37.694, -122.086
Indian Ocean
Exact location on the other side of the world
Coordinates: -37.694, 57.914
French Southern Territories
Port-aux-Français is the closest city to Castro Valley' antipodal point (1,629 km).
The antipodal city to Castro Valley is Port-aux-Français. This means that, among all the populated locations in the world, the farthest city from Castro Valley is Port-aux-Français.
The distance from Castro Valley to Port-aux-Français is about 18,000 kilometers. A direct flight would take around 20 hours, but there aren't commercial routes between these cities.
This table contains the populated locations that are closest to Castro Valley's antipode. These are the farthest cities in the world from Castro Valley.
City | Country | Distance from antipode | Coordinates |
---|---|---|---|
Port-aux-Français, Kerguelen | French Southern Territories | 1,629 km | (-49.349, 70.219) |
Tôlanaro, Anosy | Madagascar | 1,744 km | (-25.032, 46.983) |
Amboasary, Anosy | Madagascar | 1,778 km | (-25.033, 46.383) |
Ambovombe, Androy | Madagascar | 1,783 km | (-25.178, 46.087) |
Tsiombe, Androy | Madagascar | 1,808 km | (-25.300, 45.483) |
Saint-Joseph, Réunion | Reunion | 1,822 km | (-21.378, 55.617) |
Saint-Philippe, Réunion | Reunion | 1,822 km | (-21.361, 55.768) |
Petite-Île, Réunion | Reunion | 1,825 km | (-21.353, 55.564) |
Saint-Pierre, Réunion | Reunion | 1,828 km | (-21.339, 55.478) |
Kopoky, Androy | Madagascar | 1,835 km | (-25.200, 45.200) |
Local time:
Coordinates: 37.6941° N 122.0864° W
Local time:
Coordinates: 49.3492° S 70.2194° E
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 Castro Valley
The DMS coordinates are: 37°41'38.8'' N 122°5'10.9'' W.
Calculations are easier by using the decimal format, hence:
LatO = 37.6941°
LngO = -122.08635°
Step 2: Calculate the latitude
LatA = - LatO = -37.6941°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -122.08635 + 180° = 57.91365°
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 Castro Valley is located on coordinates: (LatA, LngA) = (-37.6941, 57.91365)
In DMS format: 37°41'38.8'' N 122°5'10.9'' W.