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The Newtonian Revolution: The discovery of natural law
The Newtonian Revolution: The discovery of natural law

... and deferrents away from the centers. • His construction is essentially what we would call today a Fourier de-composition of the motions of the planets, and this is still to this day the most efficient way to calculate planetary positions for many moderate-accuracy needs. • But we do know – History ...
Lecture1
Lecture1

The Detection and Properties of Planetary Systems
The Detection and Properties of Planetary Systems

... •  Is this a common or an infrequent event? •  How unique are the properties of our own solar system? •  Are these qualities important for life to form? Up until now we have had only one laboratory to test planet formation theories. We need more! ...
Planets in the sky
Planets in the sky

... telescope, you see that they are close enough so that you can actually see the disk of the planet – Even without a telescope, because their apparent size is bigger than that of stars, they often don’t twinkle as much • When you use a telescope, you can see that planets, like the Moon, have phases – ...
Chapter 2: Perihelion of Mercury`s Orbit
Chapter 2: Perihelion of Mercury`s Orbit

1. Match the following items [a] 1. when a planet seems to reverse its
1. Match the following items [a] 1. when a planet seems to reverse its

... the Big Dipper in the sky signaled what weather pattern? a. sunshine b. high winds *c. rainy season d. thick fog ...
Earth`s Orbit and the Seasons
Earth`s Orbit and the Seasons

... Diameter (Moon) = 3476 Km = ¼ Diameter (Earth) Moon’s umbra reaches only a small area < 270 Km where solar eclipse is visible ...
Condensation of the Solar Nebula
Condensation of the Solar Nebula

... Maybe these planets are formed far away from the stars as our planetary nebular theory predicts. But for some reason their host stars didn’t develop a wind, and friction between the planets and the dense planetary gas (which did not get cleared out due to the lack of solar wind) causes the planets t ...
Seasons
Seasons

... Billions of years ago, before there was life on Earth, a planet about the size of Mars smashed into us. It knocked the Earth over, so instead of rotating around an axis that is straight up and down, we are tilted by ...
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... 6.4 Terrestrial and Jovian Planets In this picture of the eight planets and the Sun, the differences between the four terrestrial and four jovian planets are clear. ...
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Models of The Solar System

Study Guide 2 - Otterbein University
Study Guide 2 - Otterbein University

... 3. The mass of the Moon is 80 times smaller than that of Earth. How does the strength of the gravitational force that the Earth exerts on the Moon compare to the gravitational force that the Moon exerts on Earth? a) It is 80 times smaller. b) It is 80 times bigger. c) It is 6400 times smaller. d) No ...
Ancient Astronomy
Ancient Astronomy

... First to point a telescope skyward (3X) then (30X) Profound discoveries 1. Milky Way had many more stars in it 2. Jupiter, now a small round disk, had four orbiting moons 3. Venus had phases 4. Sun had sunspots 5. Moon covered with craters and mountains These discoveries proved that Copernicus was r ...
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where it is, how big it

... The four large Galilean moons are named after other people in Zeus’ life, most are his lovers. Jupiter is considered one of the gas planets. The gas planets are the planets in our solar system which do not have solid surfaces, their gaseous material simply gets denser with depth. What we see when l ...
Defrosting North Polar Dunes
Defrosting North Polar Dunes

... 16 million degrees Kelvin (nearly 29 million degrees Fahrenheit), the Sun's surface temperature is so hot that no solid or liquid can exist there. Luckily for humans, Earth is a little less than 150 million kilometers (93 million miles) away from the Sun. Although its interior has been modified by n ...
Picture and Music of the Day
Picture and Music of the Day

... The terrestrial planets are made of rocky materials and have dense iron cores, which gives these planets high average densities. The Jovian planets are composed primarily of light elements such as hydrogen and helium, which gives these planets low average densities. ...
The Children of Earth
The Children of Earth

... most violent; struggle in its currents and drink of its waters. ...
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What is a planet? Why? How?

...  Scientists noticed that Pluto did not have enough mass to affect Neptune’s orbit  Went back and checked and found that there was no problem with Neptune’s orbit ...
Astronomy
Astronomy

... • observe and record the apparent movement of the Sun and Moon during the day.[5A] • observe and record the apparent movement of the Moon, planets, and stars in the nighttime sky.[5B] • observe and record data about lunar phases and use that information to model the Sun, Earth, and Moon system.[7A] ...
powerpoint version
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... Now have a mass-luminosity diagram for Main Sequence stars. This tells us that the heavier they are, the greater is their energy output rate i.e. Luminosity  (mass  mass  mass  mass) but Total energy available  mass Therefore, low mass stars live longer. ...
The Stars
The Stars

Glossary - Sky Science
Glossary - Sky Science

... a star that suddenly explodes, temporarily increasing its brightness; the plural is novae. Nuclear fusion: a process in which two or more nuclei are joined to form a single, heavier one. Stars produce energy by this process. Oort cloud: a region at the far edge of the solar system that slowly orbits ...
Alien Earths Floorplan (3,000 sq. ft) Major Exhibit Areas
Alien Earths Floorplan (3,000 sq. ft) Major Exhibit Areas

... interstellar cloud. The cloud naturally heats up and spins faster as it collapses. Collisions between particles flatten the cloud into a disk. 2. The Sun and planets start to form in this spinning, flattened disk (protoplanetary disk), with the Sun at the hottest central part. 3. In our Solar System ...
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... 1.1a Earth’s Sun is an average-sized star. The Sun is more than a million times greater in volume than Earth. 1.1b Other stars are like the Sun but are so far away that they look like points of light. Distances between stars are vast compared to distances within our solar system. 1.1c The Sun and th ...
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Formation and evolution of the Solar System



The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.
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