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Diapositiva 1 - Yale University
Diapositiva 1 - Yale University

... On the 7th day of January in the present year, 1610, … I noticed a circumstance which I had never been able to notice before, namely that three little stars, small but very bright, were near the planet; and although I believed them to belong to a number of the fixed stars, yet they made me somewhat ...
this PDF file
this PDF file

... rements, allows us to estimate the size. This is particularly important for Near Earth Asteroids, that can pose threats to the Earth. (ii) Polarimetry is also a very useful diagnostic tool for the planet atmospheres, providing unique information on their structure and the scattering properties of pa ...
Boonesborough Days - Tri
Boonesborough Days - Tri

... Mars, with one or more missions launching every twenty-six months. We are directing more of our attention to the moons of the giant planets as we see intriguing signs of both water and dynamism on their surfaces, knowing that on Earth, where there is water and energy there is also life. We are progr ...
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... tilted over 80 degrees fron the normal to the ecliptic. Its rotation is retrograde. ...
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Chapter 12 Remnants of Rock and Ice What are asteroids like

... • Pluto will never hit Neptune, even though their orbits cross, because of 3:2 orbital resonance • Neptune orbits three times during the time Pluto orbits twice ...
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b 03 Other Obj in Sol System combo ppt

... thus a major source of comets. ...
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The sun gives off energy all of the time

... where σ is the Stefan-Boltzman constant (5.7 x 10-8 J s-1 m-2 K-4) and Tbb is the blackbody temperature in degrees Kelvin. a. Assuming a planet radiates all the solar power it absorbs, derive an expression for its blackbody temperature. How does this depend on the planet’s radius? ...
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...  Ring particles are from disrupted moons or from volcanic activity on moons.  Saturn: bright rings because they are made of water ice.  The total mass of Saturn’s bright rings is about the same as a small icy moon.  Uranus and Neptune: dark rings from organic material (darker than coal).  Jupi ...
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retrograde.simulator.online.activity - wikifuller

... move faster across the night sky. By tracking their motions across the night sky we will be able tell planets apart from stars. In the night sky, planets move fast compared to the background stars which for the most part remain stationary or “fixed”. On the other hand, planets readily move over the ...
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Midterm Review Sheet

... Orbital  motions  followed  by  planets  and  their  moons   Differences  between  terrestrial  and  Jovian  planets   Peculiarities  in  the  solar  system  (Uranus  rotates  on  its  side,  Venus  rotates  opposite   to  it’s  orbital  mo ...
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Lesson 5 - Introduction to the Solar System
Lesson 5 - Introduction to the Solar System

Terrestrial Planets - Empyrean Quest Publishers
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... • When close to the Sun, solar radiation vaporizes some of the ice material, forming a bluish tail of gas and a white tail of dust; both tails can extend for tens of million of kilometers • Comets are thought to come from the Kuiper Belt, a region of the solar system extends from around the orbit of ...
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... 16 At the time of the ruling, the IAU noted that the new definition does not apply to anything outside the solar system, leaving it unclear how the organization defines the planetary objects found orbiting other stars. ...
A Gravity Connection - Center for Space Research
A Gravity Connection - Center for Space Research

... seen with the astronauts walking on the moon. The teacher might have these available or find footage of the moon walks. Astronauts bounced because the force of gravity was less on the moon, 0.17 compared to the Earth's value of 1.0.) ...
Models of The Solar System
Models of The Solar System

... An ellipse is a closed curve whose shape is determined by two points, or foci, within the ellipse. In planetary orbits, one focus is located within the sun. Elliptical orbits vary in shape. Its eccentricity is determined by dividing the distance between the foci of the ellipse by the length of the m ...
Astronomy 10: Introduction to General Astronomy Instructor: Tony
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... star. As the star wobbles back and forth from the pull from its planet, the light from the star shift to be bluer, then redder, and so forth. Other methods for discovering planets that we discussed were microlensing and transits. Although they have not been as fruitful as the Doppler effect so far, ...
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... Just beyond the orbit of Mars is a belt of small bodies called asteroids. This asteroid belt separates the inner planets from the outer planets, Jupiter, Saturn, Uranus, Neptune, and Pluto. The first four of these planets, called the Jovian, or Jupiter-like, planets, are considerably larger than Ear ...
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Chapter 16 - The Solar System

... Direction of pendulum swing appears to change Apparent change due to Earth’s rotation. At the North pole rotation is 90O in 6 hours Direction is constant relative to external reference ...
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... • When close to the Sun, solar radiation vaporizes some of the ice material, forming a bluish tail of gas and a white tail of dust; both tails can extend for tens of million of kilometers • Comets are thought to come from the Kuiper Belt, a region of the solar system extends from around the orbit of ...
Solar System Tic Tac Toe
Solar System Tic Tac Toe

... The English composer Gustav Holst composed a group of pieces for orchestra entitled The Planets. The seven pieces described musically each of the planets. Listen to one of the pieces. Write a well-developed paragraph describing how Holst used music to represent the planet. ...
powerpoint
powerpoint

... cloud of gas and dust. The planets and Sun formed from the same reservoir of interstellar matter and are therefore composed of primarily the same elements. As the cloud collapsed under the force of gravity it began to spin rapidly and then flattened into a plane. This explains why the solar system i ...
Click here
Click here

... o About the same size, mass, and density as ______________________________. o Rotates in the opposite direction than Earth. o It's day (243 Earth days) is longer than it's year (about 225 Earth days). o Hottest planet: Averages 464 ° C because there is so much greenhouse gas. ...
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Planets beyond Neptune



Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.
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