Antipode of Half Tree Hollow, Saint Helena
The opposite side of the world to Half Tree Hollow is Utrik, Utrik Atoll, Marshall Islands.
Half Tree Hollow
Saint Helena
Continent: Africa
Coordinates: -15.937, -5.720
Antipodal point
Opposite side in the world
Continent: Africa
Coordinates: 15.937, 174.280
Utrik
Marshall Islands
Utrik is the closest city to Half Tree Hollow's antipodal point (708 km).
The antipodal city to Half Tree Hollow is Utrik. This means that, among all the populated locations in the world, the farthest city from Half Tree Hollow is Utrik.
The distance from Half Tree Hollow to Utrik 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 Half Tree Hollow
This table contains the populated locations that are closest to Half Tree Hollow's antipode. These are the farthest cities in the world from Half Tree Hollow.
| City | Country | Distance from antipode | Coordinates |
|---|---|---|---|
| Utrik, Utrik Atoll | Marshall Islands | 708 km | (11.228, 169.847) |
| Mejit, Mejit Island | Marshall Islands | 728 km | (10.275, 170.865) |
| Ailuk, Ailuk Atoll | Marshall Islands | 786 km | (10.220, 169.980) |
| Wotje, Wotje Atoll | Marshall Islands | 841 km | (9.454, 170.237) |
| Likiep, Likiep Atoll | Marshall Islands | 865 km | (9.825, 169.311) |
| Taroa, Maloelap Atoll | Marshall Islands | 866 km | (8.706, 171.228) |
| Aur, Aur Atoll | Marshall Islands | 926 km | (8.150, 171.169) |
| Rongelap, Rongelap Atoll | Marshall Islands | 958 km | (11.164, 166.894) |
| Arno, Arno Atoll | Marshall Islands | 1,025 km | (7.067, 171.554) |
| Majuro, Majuro Atoll | Marshall Islands | 1,028 km | (7.090, 171.380) |
Half Tree Hollow, Saint Helena
Local time:
Coordinates: 15.9372° S 5.72° W
Utrik, Marshall Islands
Local time:
Coordinates: 11.2278° N 169.8474° 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 Half Tree Hollow
The DMS coordinates are: 15°56'14'' S 5°43'11.9'' W.
Calculations are easier by using the decimal format, hence:
LatO = -15.93723°
LngO = -5.71996°
Step 2: Calculate the latitude
LatA = - LatO = 15.93723°
Since the latitude is negative (south direction), the antipode must be positive (north direction).
Step 3: Calculate the longitude
LngA = LngO ± 180° = -5.71996 + 180° = 174.28004°
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 Half Tree Hollow is located on coordinates: (LatA, LngA) = (15.93723, 174.28004)
In DMS format: 15°56'14'' S 5°43'11.9'' W.
