how to calculate distance between moon and earth?
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There are two ways to measure the distance from the Earth to the Moon on your own: using a Lunar eclipse and using parallax.
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The distance between the Earth and its moon averages about 238,900 miles (384,000 kilometers). The diameter of the moon is 2,160 miles (3,476 kilometers). The moon's mass—the amount of material that makes up the moon—is about one-eightieth of the Earth's mass.
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The Moon orbits the Earth. The stars are so incredibly far away that the distance to them is incomprehensible to the human mind in comparison to any sane other distance. The nearest star, the Sun, is still a mind-bogglingly large distance, but it's saner and far closer than the stars of other solar systems.
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Earth's moon is the fifth largest moon in the solar system. The moon's mean radius is 1,079.6 miles (1,737.5 kilometers). Double those figures to get its diameter: 2,159.2 miles (3,475 km), less than a third the width of Earth. The moon's equatorial circumference is 6,783.5 miles (10,917 km).
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But as astronomers have discovered from centuries of studying the Moon's behavior, the Moon's orbital period (i.e. the time it takes for the Moon to complete a single orbit around the Earth) is actually the equivalent of about 27.3 Earth days – or 27 days 7 hours 43 minutes and 11.5 seconds, to be precise.
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The shortest distance between Earth and space is about 62 miles (100 kilometers) straight up, which by general accord is where the planet's boundary ends and suborbital space begins.
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Use the formula D2 = X2 + Y2 to find the squared distance between two points. For example, if X = 4 and Y = 5, then D2 = 42 + 52 = 41. Thus, the square of the distance between the coordinates is 41.
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How are electromagnetic waves used to measure astronomical distances? ... If it is that of the distance between say the Earth and moon, then it is based on the time it takes a light to travel twice the distance. For far away galaxies, it is based on the frequency of the light that is collected off the astronomical source.
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['The proximity between object can be measured as distance matrix. ... ', 'For example, distance between object A = (1, 1) and B = (1.5, 1.5) is computed as.', 'Another example of distance between object D = (3, 4) and F = (3, 3.5) is calculated as.']
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area of any sphere is 4*pi*r^2 where r is radius of the sphere. Diameter of the moon is about 3500 km so its radius is about 3500/2=1750km and Moon's surface area is about 4*pi*1750^2=3.85*10^7 square kilometers.
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A day on the Moon is 27.32 Earth days or 655.72 hours long.
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['function distance($lat1, $lon1, $lat2, $lon2) {', '$pi80 = M_PI / 180;', '$lat1 *= $pi80;', '$lon1 *= $pi80;', '$lat2 *= $pi80;', '$lon2 *= $pi80;', '$r = 6372.797; // mean radius of Earth in km.', '$dlat = $lat2 - $lat1;']
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The Moon is about 1.25 Light Seconds away from the earth as the reflected sunlight from the Moon takes about 1.25 seconds to reach the Earth. OR in terms of light years 3.96 x 10−8 Light Years.
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The Moon has no atmosphere at all, except for traces of solar wind gases, that quickly escape into space. Comparison of Mars and Earth orbits shows that Mars' is much more eccentric than the Earth's. ... The average distance between Earth and Mars is over 200 times as far as it is from the Earth to the Moon.
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['Distance to ETP = total distance x GS back / (GS forward + GS back)', 'Distance to ETP = 116nm x 95kts / (65kts + 95kts)', '= 68.9 nm.']
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How long does it take to travel to the Moon? It takes about 3 days for a spacecraft to reach the Moon. During that time a spacecraft travels at least 240,000 miles (386,400 kilometers) which is the distance between Earth and the Moon. The specific distance depends on the specific path chosen.
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On average, there is about 238,855 miles (384,400 kilometers) of distance between our planet and its large natural satellite. This means all moonlight we see is 1.255 seconds old, and a round-trip between the Earth and moon at light speed takes about 2.51 seconds.