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Marco H. solar system
Transcript of Marco H. solar system
The Sun formed about 4.567 billiona]years ago from the gravitational collapse.
Sun is now thought to be brighter than about 85% of the stars in the Milky Way.
The Sun formed about 4.567 billion
Mercury is the smallest and closest to the Sun of the eight planets in the Solar System
Mercury's surface experiences the greatest temperature variation of all the planets, ranging from 100 K (−173 °C; −280 °F) at night to 700 K (427 °C; 800 °F) during the day at some equatorial regions. The poles are constantly below 180 K (−93 °C; −136 °F). Mercury's axis has the smallest tilt of any of the Solar System's planets (about 1⁄30 of a degree), but it has the largest orbital eccentricity.[a] As such it does not experience seasons in the same way as most other planets such as Earth. At aphelion, Mercury is about 1.5 times as far from the Sun as it is at perihelion. Mercury's surface is heavily cratered and similar in appearance to the Moon, indicating that it has been geologically inactive for billions of years
Mercury is gravitationally locked and rotates in a way that is unique in the Solar System
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days
Venus is a terrestrial planet and is sometimes called Earth's "sister planet" because of their similar size, gravity, and bulk composition
Venus's surface is a dry desert scape interspersed with slab-like rocks and periodically refreshed by volcanism.
Even though Mars has only has 15% of the Earth’s volume and just over 10% of the Earth’s mass, around two thirds of the Earth’s surface is covered in water. Martian surface gravity is only 37% of the Earth’s (meaning you could leap nearly three times higher on Mars).
Mars has the largest dust storms in the solar system:
They can last for months and cover the entire planet. The seasons are extreme because of its elliptical (oval-shaped) orbital path around the Sun is more elongated than most other planets in the solar system
Scientists have found tiny traces of Martian atmosphere within meteorites violently ejected from Mars, then orbiting the solar system amongst galactic debris for millions of years, before crash landing on Earth. This allowed scientists to begin studying Mars prior to launching space missions.
140 million years before the length of a day will have increased to 25 hours.
Earth has a powerful magnetic field:
This phenomenon is caused by the nickel-iron core of the planet, coupled with its rapid rotation. This field protects the Earth from the effects of solar wind.
There is only one natural satellite of the planet Earth:
As a percentage of the size of the body it orbits, the Moon is the largest satellite of any planet in our solar system. In real terms, however, it is only the fifth largest natural satellite.
jupiter has the shortest day of all the planets:
It turns on its axis once every 9 hours and 55 minutes. The rapid rotation flattens the planet slightly, giving it an oblate shape.
The Great Red Spot is a huge storm on Jupiter:
It has raged for at least 350 years. It is so large that three Earths could fit inside it.
Jupiter’s interior is made of rock, metal, and hydrogen compounds:
Below Jupiter’s massive atmosphere (which is made primarily of hydrogen), there are layers of compressed hydrogen gas, liquid metallic hydrogen, and a core of ice, rock, and metals.
Saturn can be seen with the naked eye:
It is the fifth brightest object in the solar system and is also easily studied through binoculars or a small telescope.
Saturn is the flattest planet:
Its polar diameter is 90% of its equatorial diameter, this is due to its low density and fast rotation. Saturn turns on its axis once every 10 hours and 34 minutes giving it the second-shortest day of any of the solar system’s planets.
Saturn orbits the Sun once every 29.4 Earth years:
Its slow movement against the backdrop of stars earned it the nickname of “Lubadsagush” from the ancient Assyrians. The name means “oldest of the old”.
Uranus was officially discovered by Sir William Herschel in 1781:
Uranus is often referred to as an “ice giant” planet:
Uranus is the Coldest Planet:
Neptune was not known to the ancients:
Neptune is the smallest of the ice giants:
The atmosphere of Neptune is made of hydrogen and helium, with some methane:
pluto has 5 moons
pluto is the smallest dwarf planet
Diameter: 2,368 km (+- 20km)