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distance size and shape of the Earth, Sun and Moon

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nabiha sidat

on 19 November 2012

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Transcript of distance size and shape of the Earth, Sun and Moon

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli The Earth Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world, the Blue Planet,[21] or by its Latin name, Terra WHAT IS THE DISTANCE BETWEEN THEM video on the relative size of sun earth moon rotating of the earth sun moon The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields.[12][13] It has a diameter of about 1,392,684 km,[5] about 109 times that of Earth, and its mass (about 2×1030 kilograms, 330,000 times that of Earth) accounts for about 99.86% of the total mass of the Solar System.[14] Chemically, about three quarters of the Sun's mass consists of hydrogen, while the rest is mostly helium. The remainder (1.69%, which nonetheless equals 5,628 times the mass of Earth) consists of heavier elements, including oxygen, carbon, neon and iron, among others.[15] The Sun The Moon The Moon (Latin: luna) is the only natural satellite of the Earth,[d][7] and the fifth largest satellite in the Solar System. It is the largest natural satellite of a planet in the Solar System relative to the size of its primary,[e] having 27% the diameter and 60% the density of Earth, resulting in 1⁄81 its mass. The Moon is the second densest satellite after Io, a satellite of Jupiter. The average distance is about 150 million kilometers (149.6) or 93 million miles (92.9). This is defined as 1 astronomical unit, or AU, and is equal to about 8.2 light-minutes, as light from the Sun takes about 8 minutes to reach Earth.

Earth's orbit is actually not perfectly circular so the distance between the Earth and the Sun varies slightly over the course of the year, from a minimum of 147.1 million kilometers (91 million miles) to a maximum of 152.1 million kilometers (94.5 million miles). http://www.youtube.com/watch?feature=player_detailpage&v=FjCKwkJfg6Y#t=18s
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