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Angela R. (Solar System)
Transcript of Angela R. (Solar System)
The sun is a star found at the center of the Solar System
It makes up around 99.86% of the Solar System's mass
The Sun's core is around 13600000 degrees Celsuis !
Mercury is the planet closest to the Sun
Mercury takes 59 days to complete the turn from day to night
Because Mercury goes round the Sun so quickly, the planet was called after the messenger of the Roman Gods. The messenger Mercury, or Hermes as the Greeks knew him, is usually shown as having wings on his helmet or on his sandals.
The atmosphere of Venus made up mainly of carbon dioxide
Its size is slightly smaller than Earth
Venus is features no liquid water
Its the only planet that has liquid water in its surface
It is the only planet that has an atmosphere containing 21 percent oxygen
The earth is the only inner planet (Mercury, Venus, Earth and Mars) to have one large satellite, the moon.
Mars has very weak gravity which cannot hold onto the atmosphere well
Mars experiences violent dust storms which continually change its surface
In winter, nighttime temperatures on Mars can drop as low as -191°F.
Jupiter has a diameter of 88,700 miles, or 142,750 kilometers
Jupiter is the first of the “gas giants”, Jupiter,
Saturn, Uranus and Neptune
Closest to Jupiter is Io, further away is Europa,and there are two large outer moons, Ganymede and Callisto.
The rings were first seen by Galileo in 1610 through a telescope
Saturn has at least 18 moons, satellites which orbit round the planet attracted to it by the planet’s gravity.
The rings were first seen by Galileo in 1610 through a telescope.
Uranus cannot be seen from the Earth without a telescope.
Uranus was first seen by William Herschel in 1781 during a survey of the sky using a telescope. In 1782 George III appointed Herschel as Astronomer Royal.
Uranus takes 17.9 hours to turn once on its own axis, faster than the Earth, which takes 24 hours and gives us the change from day to night
The discovery of the planet Neptune was one of the most exciting discoveries in astronomy
Neptune is the third largest planet in the Solar System, much smaller than the real giants, Jupiter and Saturn, and only a little bigger than Uranus
Neptune has a diameter of 29,297 miles, or 47,150 kilometers. The Earth has a diameter of 7928 miles (12,760 kilometers).
Pluto is named after the Greek god of the underworld:
This is a later name for the more well known Hades and was proposed by Venetia Burney an eleven year old schoolgirl from Oxford, England
Pluto may be the largest dwarf planet ,or it could be Eris. Currently the most accurate measurements give Eris an average diameter of 2,326km with a margin of error of 12km, while Pluto’s diameter is 2,368km with a 20km margin of error, however due to Pluto’s atmosphere it is difficult to say for certain.
Pluto was discovered on February 18th, 1930 by the Lowell Observatory:
For the 76 years between Pluto being discovered and the time it was reclassified as a dwarf planet it completed under a third of its orbit around the Sun.