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Maria R.

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Yorba Student

on 21 October 2014

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Transcript of Maria R.

- the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat
- the sun considered with reference to its position in the sky, its visibility, the season of the year, the time at which or the place where it is seen, etc.
- its mean distance from the earth is about 93 million miles & its diameter is about 864,000 miles & and its mass is about 330,000 times that of the earth
- Mercury is the first planet from the sun
- It has a diameter of 3031 miles , a mean distance from the sun of 36 million miles , and a period of revolution of 87.96 days
- its the smallest planet in the solar system
- venus orbits 108,200,000 km (0.72 AU) from Sun
- Venus is the second closest planet to the sun at a distance of about 108 million km (67 million miles) or 0.72 AU.
- Venus has no moons & There are no rings around it
- The Earth is the densest major body in the solar system.
- Most of the mass of the Earth is in the mantle, most of the rest in the core; the part we inhabit is a tiny fraction of the whole
- Earth's crust is divided into several separate solid plates which float around independently on top of the hot mantle below
- Mars is the fourth planet from the Sun and the second smallest planet in the Solar System, after Mercury.
- The number of craters on Mars varies dramatically from place to place, depending on how old the surface is
- Mars is much colder than Earth, in large part due to its greater distance from the sun. The average temperature is about minus 80 degrees F
The Solar System
Asteroid Belt
- The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter
- The asteroid belt is also termed the main asteroid belt or main belt to distinguish its members from other asteroids in the Solar System such as near-Earth asteroids and trojan asteroids
- The asteroid belt formed from the primordial solar nebula as a group of planetesimals, the smaller precursors of the planets, which in turn formed protoplanets
The Inner Planets
The Outer Planets
- Jupiter is the fifth planet from the Sun and the largest planet in the Solar System
- Jupiter is primarily composed of hydrogen with a quarter of its mass being helium, although helium only comprises about a tenth of the number of molecules
- Jupiter has been explored on several occasions by robotic spacecraft, most notably during the early Pioneer and Voyager flyby missions and later by the Galileo orbiter
- Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter
- Saturn's interior is probably composed of a core of iron, nickel and rock , surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium and an outer gaseous layer
- Saturn has a prominent ring system that consists of nine continuous main rings and three discontinuous arcs, composed mostly of ice particles with a smaller amount of rocky debris and dust
- Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System
- Uranus had been observed on many occasions before its recognition as a planet, but it was generally mistaken for a star
- Uranus is named after the ancient Greek deity of the sky Uranus
- Neptune is the eighth and farthest planet from the Sun in the Solar System. It is the fourth-largest planet by diameter and the third-largest by mass
- Neptune was the first planet found by mathematical prediction rather than by empirical observation
- Neptune is similar in composition to Uranus, and both have compositions which differ from those of the larger gas giants, Jupiter, and Saturn
- Pluto has five known moons: Charon, Nix, Hydra, Kerberos, and Styx
- Discovered in 1930, Pluto was originally classified as the ninth planet from the Sun
- Pluto isn’t a planet any more, but it’s still a very interesting “dwarf planet” in the Solar System, worthy of our fascination and interest
By : Maria Ramirez
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