2 miles.
Answer:
The distance to the horizon on the ocean is a function of the height of the observation point. In general (and with thanks to Pythagoras) it is:
d=(h(D+h))0.5 where
If the reference point and an object are both on the horizon then the angular distance to the object, relative to the reference point is simply the angle formed between the two rays from the observer to object and to the reference point. If either the object or reference point (or both) are not in the plane of the horizon then the appropriate rays are the projections of the rays from the observer onto the plane containing the horizon.
The distance to the horizon, d kilometres, is related to the height above mean sea level, h metres, by the approximate formula: d = 3.57*sqrt(h).
Atlantic ocean
The sun and ocean met on the horizon.
To get an "approximate" distance to the oceanic horizon from a particular observation point, take the square root of the height of the observation point, add 22.5%, and that will give you the distance in statute miles. For example, if your eyes were 6 feet off the ground, and you stood atop a 50' tower, your observation point would be 56'. The square root of 56' is 7.48. Add 22.5% of 7.48 (1.68) to 7.48 and you have 9.16 statute miles from your eyes to the horizon.
Atlantic ocean
You can't reach the horizon. No matter where you are or what you do the horizon will always be there in front of you. The distance between the shore and the horizon is infinite.
Horizon
A point on the horizon where parallel lines appear to meet is called the vanishing point.
A "meridian"
Establish a horizon line and a vanishing point
South of Tierra del Fuego, there is no distance at all between them--they meet. At the widest point of North America, however, it's about 3000 miles.