COMETS,ASTEROIDS, AND METEORS
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Comets are small icy objects with two tails made of gas and dust that formed over 4.6 billion years ago in the early solar system and have highly elliptical orbits. Asteroids are small rocky or metallic objects that orbit the sun, ranging in size from meters to hundreds of kilometers wide with irregular shapes and cratered surfaces. Meteors are streaks of light seen when meteoroids - space rocks or fragments that can be from comets, asteroids, moons or Mars - enter the Earth's atmosphere. Some meteoroids survive entry and land on Earth's surface as meteorites.
COMETS,ASTEROIDS, AND METEORS
- 2. COMET Is a small icy material which have two tails made up gas and dust. Leftover of solar system formation for about 4.6 billion years ago. typically have highly elliptical (oval-shaped), offcenter orbits that swing near the Sun.
- 4. ASTEROIDS A small rocky or metallic body that orbits the Sun. Hundreds of thousands of asteroids exist in the solar system. Asteroids range in size from a few meters to over 500 km (300 mi) wide. They are generally irregular in shape and often have surfaces covered with craters. Like icy comets, asteroids are primitive objects left over from the time when the planets formed
- 7. meteor A meteor is a light phenomenon or a streak of light as observed from earth when a meteoroid passes through Earth’s atmosphere. A meteor shower happens when Earth passes through the orbit of comets
- 8. meteoroid A meteoroid is a fragment of comet, an asteroid, moon or even mars. A meteoroid is the space rock fragments before it enter to earth atmosphere.
- 9. meteorites When a meteoroids or part of meteoroids survive passing through Earth atmosphere, an land on Earth surface.