# What light is used to find the distance of the Moon from the Earth?

Laser light.

### How do you find the distance between moon and earth?

There are a few methods that one could use to measure the distance between the moon and the earth. The easiest one that I can think of is this: Place a mirror on the moon, shine a laser on it and time how long it takes for the light from the laser to the moon and back again. Take this number and multiply by the speed of light Actually, NASA did exactly this on the…

### Find the location of the center of mass of the earth-moon system.?

If Earth has 81 times the mass of the Moon, you must find a point between the two, from which the Moon is 81 times farther than the Earth. That is, divide the distance from the center of the Earth to the center of the Moon by 82. The point at that distance from the Earth's center is the center of mass. I understand this point is still within the Earth. This point will change…

### What are the different shapes of the moon you see from the earth called?

Moon phases. As the moon revolves around the earth on its tilted path, (search for diagrams to find out what happens with it tilted) the light from the sun hits the moon and reflects towards earth. But we see a different amount of light and darkness depending on where it is in the orbit. This causes us to see different shapes.

### How many times greater is the distance from Earth to Alpha Centauri than the distance from Earth to the Moon?

That's actually an easy calculation, if you state the problem correctly. Alpha Centauri is about 4.5 light years away. There are 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, and 365.24 days in a year. Multiply all those numbers together to find out how many light-seconds it is to Alpha Centauri. The Moon is about 1.5 light seconds away, so divide by that to get the ratio.

### How many strawberry seeds would it take to get to the moon?

The distance from the center of the Earth to the center of the moon is about 384,467 km. If you subtract from this distance the average radius of the Earth (6,378 km) and the average radius of the moon (1,738 km), you find 376,351 km. Convert the diameter of a strawberry seed, 2 millimeters, to kilometers: .000002 km. Now, divide the distance from the surface of the Earth to the surface of the moon by…

### How far is the planet Venus's from the moon?

The distance between Venus and our moon is essentially the same as the distance between Venus and earth. The reason is that the moon and earth are relatively close, and in addition, as the moon circles the earth, half of the month it is a tiny bit closer to Venus, and rest of it the moon is just a tiny bit further. On average the Venus/Moon distance is about the same as the Venus/Earth distance…

### Did lasers find the exact distance from the moon to the earth?

Yes. Scientists had calculated the distance to the Moon many years ago, but there was some measure of error in the precise dimensions of the Moon's orbit. Not by much; we can measure with a stopwatch how long it takes for the Moon to orbit the Earth, and that lets us calculate the distance to the Moon pretty accurately; within a couple of miles, or so. And the US Air Force routinely calibrated their long-range…

### How many peas would it take to reach the moon from earth?

First, you need to find the information you need to solve for the answer. A pea measures approximately 1 cm in diameter (from one point to the point on the opposite end). The distance from the center of the Earth to the center of the moon is about 384,467 km. If you subtract from this distance the average radius of the Earth (6,378 km) and the average radius of the moon (1,738 km), you find…

### How long would it take approximately for light to travel from here to New York?

Light travels at approximately 186,000 miles per second, or approximately 3,000,000 (3-million) meters per second, or almost 1,000,000,000 (1-billion) feet per second. That's about 1 nano-second (1 billionth of a second) per foot. Light almost always travels in a straight line, but light is affected by gravity, and the path of the light can be "bent" (curved) as the light passes near large planets, or stars, or "black-holes". The distance around the earth at the…

### What are the advantages of the moon to the earth?

The moon is the earth without water, atmosphere or erosion. We can study the moon to find out what the earth was like billions of years ago and how it formed. Also, the moon has many minerals in abundance that are hard to find on earth. The lack of atmsophere on the moon make it the perfect place to set up a telescope to study distant objects in space.

### How long would it take from the sun to the earth?

Well, that is a good question. I think that from the Sun's light to shine to the Earth would be about 8 minutes and 20 seconds. To find that out, i did: - The first number to know is the speed of light in a vacuum, which is 300,000 km/s - Next, you need to know the average distance from the Sun to the Earth, which is 150 million km. - Divide the distance by…

### How to measure the distance from Earth to Sun and how to calculate the time taken by light to travel to Earth's surface?

The distance from the Sun to the Earth varies about 3% over the course of a year, from a minimum or "perihelion" distance of about 91,500,000 miles to a maximum or "aphelion" distance of about 94,500,000 miles. 93 million miles is a good average figure. Details of how to measure this distance are given later. The speed of light is approximately 186,000 miles per second, or 300,000 kilometers per second. With an average distance of…

### What makes the moon get bigger on a full moon?

"because of the light the moon gives off the light makes it seem bigger!" Firstly, the Moon doesn't emit it's own light. Secondly, below this sentence is a bullet pointed version of events that makes the moon get bigger or smaller. THE SUN emits light which reflects onto the moon giving it the illumination which then reflects onto the Earth (which is what muddles people up with the Moon's glow) THE MOON GETS BIGGER AND…

### How do you find the distance of a planet from the sun in light years?

Find planet Find distance of planet from Sun. Try "how far is xxxxx from the Sun" in wikianswers where xxxxx is the planet of your choice. Take the average distance in Km and divide by 300,000. This will give you the distance in light seconds. Divide by 60 to give light minutes Divide by 60 to give light hours Divide by 24 to give light days. Divide by 365.25 to give light years.

### How do you find the approximate length of the equator of the moon?

From earth the moon subtends an angle of 0.5 degrees. The ancient Greeks determined that the moon was approximately 60 earth radii away. Using simple trigonometry, the diameter of the moon would therefore be (60/2) tan(0.5Â°) = 0.26 earth diameters, or about 2000 miles. [The actual diameter is 2160 miles]. That makes the circumference 2000(pi) = 6300 miles [actual equatorial distance is 6786 miles].

### How can you calculate the amount of minutes the light from the sun takes to reach earth?

With the simple equation: Rate*Time=Distance. Since you need to find the time it would be: Time=Distance/Rate. The sun is approximately 93 million miles from the Earth and the speed of light is approximately 186000 miles per second. So you would take 93000000/186000, which equals 500. It takes about 500 seconds(around 8 minutes) for the Sun's light to reach Earth.

### How do you find the gravity between earth and the moon?

What you're probably looking for is the force between earth and moon, due to gravity. Here's how to do it: -- The earth's mass is 5.97 x 1024 kg -- The moon's mass is 7.3 x 1022 kg -- The distance between earth and moon is 384,401,000 meters -- The formula for the force is F = G m1m2/R2 m1 and m2 are the masses of the two bodies. R is the distance between them…

### Why does the moon shine?

The moon reflects light from the sun. Even though you can't see the sun at night, it is still there producing light. So the moon cannot produce its own light to shine. It is not Sun but Moon itself which shine. Concentrate on full Moon at night and u will find what I'M sayin :/ the moon shine because of the sun it reflects to the moon

### How far away is earth from the Andromeda galaxy in kilometers in scientific notation?

The Great Galaxy in Andromeda (also known as the Andromeda Galaxy or M31) is about 2.5 million light years from Earth. When we look at this galaxy today, we see light that has been traveling through space for 2.5 million years; i.e. when we look at the Andromeda Galaxy, we are seeing it as it was about 2.5 million years ago! Think about this, we are looking back in time. 1 light year is the…

### How is the number of light years figured between two celestial objects?

To find the number of light years between two celestial objects, we first find the distance from each object to earth. If we connect the dots between Earth and the two objects, we have a triangle. We to sides lengths of that triangle (the distances between Earth and the objects), and we can measure one angle (the angle at the vertex where Earth is. This is enough information to find the distance between the objects…

### Can you determine the mass of the moon if yes then what do we need to know?

The mass of the Moon can be found from a modified form of Kepler's third law of Planetary Motion. You need to know the time taken for the Moon to orbit the Earth and the mass of the Earth. Also you need the distance between the Moon and Earth. Let the orbital period be P Moon's mass = Mm Earth's mass = ME Distance apart = D Gravitational Constant = G Then: Mm + ME…

### Can you prove the moon goes round the earth?

Yes Yes, you can because the N.A.S.A prgram has a satellite in space and they can monitor the planets and the moon, so yes you can prove that the moon goes around the earth and the moon is always in the sky every night. =]]] Depends from where you look. According to the Einstein's theory of relativity ... If you stand on the moon, you will find the earth orbiting the moon and so the…

### What did neil Armstrong hope to find on the moon?

The main mission of Apollo 11 was to land on the moon, collect some rocks and soil samples, put out a reflector to measure the exact distance between the earth and the moon, and to put a device to measure moonquakes. Armstrong and Aldrin were not sent to the moon to look for anything specific. They were just sent there to see if it was possible to land on the moon and walk on it…

### How your weight on earth would change if you were on the moon?

On The Moon, Whatever Weight You Are, You Will Be One-Sixth Of Your Earth Weight. E.G. I Weigh 60kg On Earth. On The Moon I Weigh 10kg =========================================== Another contributor agonized: That answer was going along so nicely, until suddenly it went off the cliff. -- Whatever your earth weight is, multiply that number by 0.16 to find your weight on the moon. If you weigh 100 pounds on earth, you'll weigh 16.3 pounds on…