#### How To Determine Radius Of Sun Fro Earth? (Best solution)

What is the formula for calculating the radius of the Sun?

• As with the previous calculation, trigonometry may be used to determine the radius or diameter of the Sun given a distance between the Earth and the Sun, as 2R sun = tan (0.5 degrees) a.

## How is the distance from the Earth to the sun measured?

The Earth travels around the sun at an average speed of 92,955,807 miles per hour (149,597,870 kilometers). AU stands for astronomical unit, and it is used to measure distances across the solar system. The distance between the Earth and the sun is also referred to as the distance between the Earth and the sun.

## What is the radius of Earth?

As a result of data collected by 183 high-school students participating in a World Year of Physics project called “Measure the Earth with Shadows,” the radius of the Earth has been determined to be 6563 km, which is more than the previously accepted number of 6371 km. Of course, no one is saying that the Earth’s size has altered in any significant way.

## How do we know the radius of a star?

(2) Using the brightness and temperature of stars, it is possible to calculate the radius of stars. To put it another way, knowing the luminosity L* of a star (discovered by measuring its intensity and distance) and knowing the temperature T* of a star allows us to compute its radius R*, which is a measure of its size. Take, for example, Sirius, the brightest star in the night sky, which serves as an example.

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## How many kilometers away is the Sun?

As previously stated, the average distance between the Earth and the Sun is around 93 million miles (150 million kilometers).

## How do we measure the radius of the earth?

Calculate the radius of the earth using the formula C (circumference) = 2 x pi x r (circumference of the earth) (radius). The following is an example of Erastosthenes’ formula: 39,350 = 2 x 3.14 x r = 6,267 kilometers, or 2 x 3.14 x r

## What is the diameter of sun?

Complete response: No, the radius of the earth varies depending on where you are on the planet. The radius of the Earth at the poles (polar radius) is 3,950 miles/6,356 kilometers, and the radius of the Earth at the equator is 3,963 miles/6,378 kilometers.

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#### What Type Of Eclipse Occurs When The Earth, Moon, And Sun Are Lined? (TOP 5 Tips)

A lunar eclipse can only occur when the moon is completely full. A total lunar eclipse can only occur when the sun, Earth, and moon are perfectly aligned – anything less than ideal results in a partial lunar eclipse or no eclipse at all if the sun, Earth, and moon are not properly aligned. 5 […]

#### Where On Earth Is It Possible For The Sun To Be Above The Horizon For Several Weeks? (Correct answer)

How long does it take for the Sun to disappear fully below the horizon? The greatest durations of time when the Sun is fully below the horizon for places inside the polar circles range from zero a few degrees beyond the Arctic Circle and Antarctic Circle to 179 days at the Poles. Contents1 Where on […]