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31 October, 02:49

Which choice correctly lists the attributes a celestial body must posses in order to be labeled a planet?

Question 4 options:

1. Must have a moon

2. Must be large enough that its gravity forced it into a spherical shape,

3. Must be large enough that its gravity cleared away similar sized objects in its orbit around the star.

1. Must have a star orbiting around it.

2. Must be large enough that its gravity forced it into a spherical shape,

3. Must be large enough that its gravity cleared away similar sized objects in its orbit around the star.

1. Must orbit a star

2. Must be large enough that its gravity forced it into a spherical shape,

3. Must be able to plow through any objects in its orbit

1. Must orbit a star

2. Must be large enough that its gravity forced it into a spherical shape,

3. Must be large enough that its gravity cleared away similar sized objects in its orbit around the star.

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Answers (2)
  1. 31 October, 02:59
    0
    The correct option is (4).

    The International Astronomical Union (IAU) in 2006 decided that in order for a celestial object to be classified as a planet, it should possess the following attributes:

    1. The celestial object should be a non luminous body, which should orbit a star.

    2. The object's gravitational forces should be large enough such that the object assumes a spherical shape.

    3. The object should be larger than asteroids or meteors.

    4. Its gravitational force should be strong enough so that it clears away all the objects in its orbit, by either assimilating them into itself or shattering it. The object does not share its orbit with any other object.

    The option that satisfies all these parameters is option 4.
  2. 31 October, 03:02
    0
    I would think answer 2 would be the one to go with.
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