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

North Pacific Ocean

Exact location on the other side of the world

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:

Time Zone: Atlantic/St_Helena

Coordinates: 15.9372° S 5.72° W

Elevation: 361 m (1,184 ft)

Utrik, Marshall Islands

Local time:

Time Zone: Pacific/Majuro

Coordinates: 11.2278° N 169.8474° E

Elevation: 10 m (33 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 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.

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