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As of November 2009, astronomers had listed 3,648 known comets (580 unclassified). This is a small fraction of the number that could exist, which could be as high as a trillion or more. Most will never come into proximity of the Sun, trapped in orbits well beyond the planets of the solar system.

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14y ago

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Shooting stars are not stars to begin with. They are dust particles and small meteors entering our planets atmosphere. Due to the intense heat on entry into our atmosphere they burn and produce the glow.

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14y ago
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Unknown. How many grains of sand are there on the beaches of the earth.

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Wiki User

16y ago
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It would be impossible to put an accurate number on them. Certainly many, many millions

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15y ago
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Several comets are observed every year. Not all of them are spectacular, or can even be seen with the naked eye, so the exact answer is not known.

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Wiki User

13y ago
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At a rough guess, there may be trillions of comets in the Milky Way galaxy.MAby even more

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Wiki User

14y ago
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There are a couple hundred billion stars in the Milky Way. A conservative estimate for the number of comets would be in the quadrillions.

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11y ago
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There is no exact number since they are constantly crashing into Earth. Most are smaller than a grain of sand.

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13y ago
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None - comets are in orbit round the Sun.

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10y ago
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1 trillion

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Wiki User

12y ago
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Q: How many comets are in the milky way?
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