how far can you see at different heights

how far can you see at different heights

The formula for determining how many miles an individual can see at higher levels is the square root of his altitude times 1.225. Thus on a clear day at 1,000 feet a person with normal vision can see 39 miles; at 10,000 feet, 123 miles; at 25,000 feet, 194 miles.

How far can you see from a certain height?

The formula for determining how many miles an individual can see at higher levels is the square root of his altitude times 1.225. Thus on a clear day at 1,000 feet a person with normal vision can see 39 miles; at 10,000 feet, 123 miles; at 25,000 feet, 194 miles.

How far can you see from 100m high?

For an observer standing on a hill or tower 100 metres (330 ft) above sea level, the horizon is at a distance of 36 kilometres (22 mi).

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How far away can you see something a mile tall?

The Earth curves about 8 inches per mile. As a result, on a flat surface with your eyes 5 feet or so off the ground, the farthest edge that you can see is about 3 miles away.May 23, 2019

How far can a 6 foot man see?

For a six-foot (182.88 centimeters) tall person, the horizon is a little more than 3 miles (5 kilometers) away. Geometry tells us that the distance of the horizon – i.e. the farthest point the eye can see before Earth curves out beneath our view – depends simply on the height of the observer.Sep 12, 2012

Can you see 50 miles away?

Ever stare out at the ocean? The farthest point you can see is about 3 miles out. 6 miles: The average 747 passenger plane flies at about 6.6 miles up in the air. 50 miles: On clear days, city buildings can be seen from 50 miles away (if you're standing on the ground).

How far can a 6 ft man see?

Thus a person 6 feet tall standing on level ground can see for about 3 miles. So, theoretically, a person 6' tall (with binoculars) should be able to see the top of the head of a six-footer who is 6 miles away. He would see the whole person at a distance of 3 miles.

Can you see something 5 miles away?

The Earth curves about 8 inches per mile. As a result, on a flat surface with your eyes 5 feet or so off the ground, the farthest edge that you can see is about 3 miles away.May 23, 2019

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How many miles away can a person see?

The human eye can see far beyond Earth's horizon. Earth's surface curves out of sight at a distance of 3.1 miles (5 kilometers). But our visual acuity extends far beyond the horizon.May 7, 2012

Can the human eye see 7 miles?

The range of vision for a person is infinite. You can see for miles and miles. On a clear day, you can see for up to 3 miles before the horizon due to the curvature of the earth. Yet you can see skyscrapers in a further distance than 3 miles due to no horizon obstruction.

How many miles away can you see on a clear day?

On a clear day, you can see for miles and miles and miles. The old saying turns out to be just about true. For a six-foot (182.88 centimeters) tall person, the horizon is a little more than 3 miles (5 kilometers) away.Sep 12, 2012

Can you see 6 miles away?

The farthest point you can see is about 3 miles out. 6 miles: The average 747 passenger plane flies at about 6.6 miles up in the air. 50 miles: On clear days, city buildings can be seen from 50 miles away (if you're standing on the ground).

How do you calculate how far I can see?

For example, if our eye is 5 feet about sea level, then the horizon distance is about 1.22459√5=2.738 miles away. To check our calculations, we can work out an “exact” formula and compare. The angle θ can be found as θ = cos-1 R R + h so that s = Rθ = R cos-1 R R + h .

What is the formula for distance to the horizon?

distance to horizon (miles) = sqrt [ 7 × h (feet) / 4 ]. NIMA has an on-line calculator that offers both English and metric units.

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How far can you see from different heights?

The formula for determining how many miles an individual can see at higher levels is the square root of his altitude times 1.225. Thus on a clear day at 1,000 feet a person with normal vision can see 39 miles; at 10,000 feet, 123 miles; at 25,000 feet, 194 miles.

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