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Why some planets are close to the sun while others are further away?
Wiki User
∙ 11y ago
It depends on what you mean by "close"
Wiki User
∙ 11y ago
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Why do planets farthest from the sun have different composition than the planets closest to the sun?
Because as the planets formed form the disk of material left over after the Sun had formed (and started to heat up), the heat meant that only the rock component could stick together close to the sun, while further out the more volatile components could condense. The inner planets are therefore predominantly rocky, while the outer planets are gaseous.
How much mass do Planets have?
It depends on the planet. Some planets, like Jupiter, are made from gas. While others, like Earth, are rocky planets.
What is the speed of planets?
The speed of planets will vary as they travel at different speeds. Mercury is the fastest planet while Pluto is the slowest. The speed of the planets is influenced by how close they are to the sun.
Why do the inner planets have more of the lighter elements like hydrogen and helium gas like the outer planets do?
The Sun and its planets formed form a huge cloud (disk) of dust which contained both light and heavy elements, but there were more light elements (hydrogen) than heavy. As the disk coalesced into the sun and planets the areas close to the young sun were too hot (heated by the sun) for the light elements to condense and settle onto the young inner planets which are therefore rocky, while the outer planets being further from the sun did accumulate the lighter and more volatile elements. However in the centers of the giant planets there are rocky (heavy) cores.
Why are planets named inner and outer planets?
The "inner" planets are on the "inside" of the asteroid belt, while the "outer" planets are on the "outside" of it
Why do planets farthest from the sun have different composition than the planets closest to the sun?
Because as the planets formed form the disk of material left over after the Sun had formed (and started to heat up), the heat meant that only the rock component could stick together close to the sun, while further out the more volatile components could condense. The inner planets are therefore predominantly rocky, while the outer planets are gaseous.
How much mass do Planets have?
It depends on the planet. Some planets, like Jupiter, are made from gas. While others, like Earth, are rocky planets.
What is the relationship between gas giants and terrestrial planets regarding astronomical units?
All of the terrestrial planets are within 1.52 AU of the Sun. All of the gas giants are greater then 5 AU of the sun. The relationship is that most of the terrestrial planets are very close to the sun while gas giants are much further away.
Why are Neptune Jupiter Saturn and Uranus called the ringed planets?
They are called ringed planets because they are ringed planets. They have rings round them. The ones round Saturn were first noticed by Galileo and can be seen in a small telescope, while the others' rings were only discovered from photos taken from close range by spacecraft.
What is the speed of planets?
The speed of planets will vary as they travel at different speeds. Mercury is the fastest planet while Pluto is the slowest. The speed of the planets is influenced by how close they are to the sun.
What is the region of the sky where the moon and planets appear?
The Moon, Sun and planets all appear in a strip of sky called the ecliptic. It is a plane defined by the plane of the Earth's orbit and the Sun is always on the ecliptic, while the Moon and planets stay close to it.
Why do some planets rotate clockwise while others rotate counterclockwise?
Probably because an asteroid knocked them into spinning that way.
Which planets have longer and shorter years than earth?
Planets closer to the sun than Earth orbit the sun in less than one year (Mercury and Venus), while planets further out from the sun than Earth take longer than a year (Mars, Jupiter, Saturn, Uranus and Neptune). The further out you go, the longer it takes to orbit the sun.
Why do the inner planets have more of the lighter elements like hydrogen and helium gas like the outer planets do?
The Sun and its planets formed form a huge cloud (disk) of dust which contained both light and heavy elements, but there were more light elements (hydrogen) than heavy. As the disk coalesced into the sun and planets the areas close to the young sun were too hot (heated by the sun) for the light elements to condense and settle onto the young inner planets which are therefore rocky, while the outer planets being further from the sun did accumulate the lighter and more volatile elements. However in the centers of the giant planets there are rocky (heavy) cores.
Is a star another planet?
sometimes other planets can look like stars, but a star in itself is just a star. No. Stars are things like our Sun. While you may occasionally see some very close planets in the sky, most of the lights you see will not be planets.
Do all the planets have smaller planets orbiting them?
No. Planets orbit suns, while moons orbit planets. Planets do not orbit planets.
All comets orbit the Sun in the same direction as the planets?
All comets do not orbit the Sun in the same direction as the planets. Some comets orbit in a clockwise direction, while others orbit in a counterclockwise direction.
