Antipode of Castletroy, Ireland
The opposite side of the world to Castletroy is Papatowai, Otago, New Zealand.
Castletroy
Ireland
Continent: Europe
Coordinates: 52.673, -8.553
Antipodal point
South Pacific Ocean
Exact location on the other side of the world
Coordinates: -52.673, 171.447
Papatowai
New Zealand
Papatowai is the closest city to Castletroy's antipodal point (695 km).
The antipodal city to Castletroy is Papatowai. This means that, among all the populated locations in the world, the farthest city from Castletroy is Papatowai.
The distance from Castletroy to Papatowai is about 19,000 kilometers. A direct flight would take around 21 hours, but there aren't commercial routes between these cities.
Cities on the other side of the world of Castletroy
This table contains the populated locations that are closest to Castletroy's antipode. These are the farthest cities in the world from Castletroy.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Papatowai, Otago | New Zealand | 695 km | (-46.561, 169.471) |
| Bluff, Southland | New Zealand | 712 km | (-46.600, 168.333) |
| Kaitangata, Otago | New Zealand | 721 km | (-46.275, 169.850) |
| Awarua Plains, Southland | New Zealand | 723 km | (-46.483, 168.383) |
| Balclutha, Otago | New Zealand | 727 km | (-46.234, 169.750) |
| Clifton, Southland | New Zealand | 727 km | (-46.448, 168.360) |
| Kingswell, Southland | New Zealand | 728 km | (-46.438, 168.360) |
| Heidelberg, Southland | New Zealand | 729 km | (-46.428, 168.370) |
| Strathern, Southland | New Zealand | 729 km | (-46.428, 168.360) |
| Kew, Southland | New Zealand | 730 km | (-46.428, 168.350) |
Local time:
Time Zone: Europe/Dublin
Coordinates: 52.6735° N 8.5533° W
Elevation: 19 m (62 ft)
Local time:
Time Zone: Pacific/Auckland
Coordinates: 46.5607° S 169.4707° E
Elevation: 25 m (82 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 Castletroy
The DMS coordinates are: 52°40'24.6'' N 8°33'12'' W.
Calculations are easier by using the decimal format, hence:
LatO = 52.67349°
LngO = -8.55333°
Step 2: Calculate the latitude
LatA = - LatO = -52.67349°
Since the latitude is positive (north direction), the antipode must be negative (south direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -8.55333 + 180° = 171.44667°
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 Castletroy is located on coordinates: (LatA, LngA) = (-52.67349, 171.44667)
In DMS format: 52°40'24.6'' N 8°33'12'' W.