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More About Individual Term Projects
More About Individual Term Projects

... individual semester project ...
sc_examII_fall_2002 - University of Maryland
sc_examII_fall_2002 - University of Maryland

... 26. a) Describe and account for the physical changes that we see from Earth as a comet approaches the Sun. (3 pts.) b) Asteroids have been photographed by spacecraft. Describe what one looks like. (2 pts.) ...
ISIMA lectures on celestial mechanics. 3
ISIMA lectures on celestial mechanics. 3

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PHY 150

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The Sun, Moon and Earth

... The Earth is 93,000,000 miles from the sun. We orbit the sun. It takes 365 and a ¼ days to orbit the sun. To be precise 365.256366 days. Every 4 years we get a leap day to make up for the forth day. Our distance from the sun makes Earth perfect for life. ...
asteroids
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... » these are smaller planets also known as “planetoids” » found between the orbits of Mars and Jupiter » believed to be of the particles of an exploded planet » about 2,000 of them have been discovered; » revolves around the sun just like the planets with an average of 3- 6 years revolution time. » I ...
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CURRICULUM COMMITTEE COURSE PROPOSAL FORM
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... COURSE DESCRIPTION FOR CATALOG: The discovery of exoplanets is one of the greatest revolutions in modern astronomy. Over eighteen hundred exoplanets have been discovered to date. The universe is teeming with planets - hot Jupiter-like planets skimming the surfaces of their stars, free-floating plane ...
Orbit 13 Yes those famous words, “Class, we have a problem.” once
Orbit 13 Yes those famous words, “Class, we have a problem.” once

... that if the scalar projection of M00 (t) onto M(t) is never positive then the orbit will be convex. Lets find the smallest such R and plot it.” d. Find the smallest positive R so that this scalar projection is less than or equal to zero for all t and plot the orbit for this R. Another actor, Kevin B ...
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... consists of plains which are much younger, lower in elevation and have a much more complex history. An abrupt elevation change of several kilometers seems to occur at the boundary. The reasons for this global abrupt boundary are unknown (some speculate that they are due to a very large impact shortl ...
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... The pull of gravity on Jupiter at the top of the clouds at the equator is 2.4 times as great as gravity's pull at the surface of Earth at the equator. The bulk of Jupiter rotates once in 9 hours, 55.5 minutes, although the period determined by watching cloud features differs by up to five minutes du ...
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... parallax could mean one of two things: 1.  Stars are so far away that stellar parallax is too small to notice with the naked eye. 2.  Earth does not orbit the Sun; it is the center of the universe. With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they ...
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... It has a planet orbiting at less than 1 AU. It has a planet orbiting at greater than 1 AU. It has a planet orbiting at exactly 1 AU. It has a planet, but we do not have enough ...
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... Standard: 9 - Describe lunar and solar eclipses, the observed moon phases, and tides. Relate them to the relative positions of the earth, moon, and sun. Standard: 10 - Compare and contrast properties and conditions of objects in the solar system (i.e., sun, planets, and moons) to those on Earth (i.e ...
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Universe 8e Lecture Chapter 14 Uranus, Neptune, Pluto

... Triton has a young, icy surface indicative of tectonic activity. The energy for this activity may have been provided by tidal heating that occurred when Triton was captured by Neptune’s gravity into a retrograde orbit. Triton has a tenuous nitrogen atmosphere. ...
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... APPEARANCES, since we have been told certain things all our lives; so we can often work from the theory back to what the appearances must be, if we don’t know or can’t remember.) Mercury’s greatest elongations from the sun are smaller than those of Venus, which gets a little further from the sun. In ...
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... comets are "short-period" comets that take five or ten years to complete an orbit. Some comets are "long-period" comets that take decades, centuries, or millenia to orbit the Sun. ...
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... C) Stars within a constellation move together as a group, which tends to hide their actual motion and prevent the pattern from changing. D) Stars move, but they move very slowly—only a few kilometers in a thousand years. E) The stars in our sky actually move rapidly relative to us—thousands of kilom ...
Target Stars for Earth-like Planet Searches with the Terrestrial
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... studies are underway to develop concepts and plans for the Terrestrial Planet Finder (TPF) space mission (see Beichman et al., 1999: "Terrestrial Planet Finder"). TPF, like other missions in the early planning stages, aims to search selected nearby stars for the existence of terrestrial planets, and ...
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File - Adopt A Constellation

... • Constellations - A pattern or group of stars in the sky that humans observe in a pattern and give a name. • People of ancient time saw the constellations as character or animals in the sky. They made up stories to explain how the object, animal, or character came into the night sky • Earth rotate ...
Chapter 13 Power Point Lecture
Chapter 13 Power Point Lecture

... It has a planet orbiting at less than 1 AU. It has a planet orbiting at greater than 1 AU. It has a planet orbiting at exactly 1 AU. It has a planet, but we do not have enough information ...
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Definition of planet



The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.
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