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Heavenly Bodies

Heavenly Bodies . A natural celestial object, visible in the sky, such as a star, planet, natural satellite, asteroid, comet, the Moon or the Sun. Objects flying or moving in the atmosphere are not usually considered as heavenly bodies. Heavenly Bodies . Stars.

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Heavenly Bodies

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  1. Heavenly Bodies

  2. A natural celestial object, visible in the sky, such as a star, planet, natural satellite, asteroid, comet, the Moon or the Sun. Objects flying or moving in the atmosphere are not usually considered as heavenly bodies.

  3. Heavenly Bodies

  4. Stars

  5. Stars is a luminous body seen in the heavens at night appearing apparently as fixed point of light. A self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions in the interior is balanced by the outflow of energy to the surface, and the inward-directed gravitational forces are balanced by the outward-directed gas and radiation pressures.

  6. Planet

  7. Planet Is the heavenly body that revolves around the sun and rotates on it’s axis. Planetis a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion.

  8. Planets are generally divided into two main types: Large, low-density gas giants, Smaller, rocky terrestrials.

  9. Gas giants • Gas giants is a large planet that is not primarily composed of rock or other solid matter. Solar System: Jupiter Saturn Uranus Neptune

  10. terrestrial • A terrestrial planet, telluric planet or rocky planet is a planet that is composed primarily of silicate rocks or metals. • Mercury • Venus • Earth • Mars

  11. Comet

  12. Comet • A comet is celestial body orbiting around the sun in the eccentric path raging from a few yeas through million of years to appear, each of which is compose of small dense of nucleus surrounded by a large thin envelope of gases and dust called, coma that extend in to along tail.

  13. Comet • is an icy small Solar System body that, when close enough to the Sun, displays a visible coma (a thin, fuzzy, temporary atmosphere) and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles.

  14. meteor

  15. meteor • Is a flash of light created when a meteoroid enters the earth atmosphere. Shooting star. A meteor is the visible path of a meteoroid that has entered the Earth's atmosphere. Meteors typically occur in the mesosphere, and most range in altitude from 75 km to 100 km. Millions of meteors occur in the Earth's atmosphere every day. Most meteoroids that cause meteors are about the size of a pebble. • The velocities of meteors result from the movement of the Earth around the Sun with about 30 km/s, the orbital speeds of meteoroids, and the gravitational attraction of the Earth.

  16. Meteorites ♣ A solid portion of a meteoroid that survives its fall to Earth, or some other body ♣are recovered fragments from meteoroid.

  17. Moon

  18. The Moon is the only natural satellite of the Earth, 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, having a quarter the diameter of Earth and 1⁄81 its mass. The Moon is the second densest satellite after Io, a satellite of Jupiter. It is in synchronous rotating with Earth, always showing the same face; the near side is marked with dark volcanic Maria among the bright ancient crustal highlands and prominent impact craters. It is the brightest object in the sky after the Sun, although its surface is actually very dark, with a similar reflectance to coal.

  19. Its prominence in the sky and its regular cycle of phases have, since ancient times, made the Moon an important cultural influence on language, calendars, art and mythology. The Moon's gravitational influence produces the ocean tides and the minute lengthening of the day. The Moon's current orbital distance, about thirty times the diameter of the Earth, causes it to appear almost the same size in the sky as the Sun, allowing it to cover the Sun nearly precisely in total solar eclipses

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