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Our Solar System
Our Solar System

... • Sweeping-up of space debris by planets ...
transit of Venus - Glenn Schneider
transit of Venus - Glenn Schneider

... two or more points on Earth’s surface with widely separated latitudes, each observer would see Venus trace a slightly different path across the sun [see bottom illustration in box on preceding page]. Because each path takes the form of a chord— a straight line connecting two points at the edge of th ...
Anatomy of the Sun
Anatomy of the Sun

Anatomy of the Sun - Lincoln-Sudbury Regional High School
Anatomy of the Sun - Lincoln-Sudbury Regional High School

... inside is higher than that outside, so provides a force that if unopposed will expand the balloon. At the same time the stretching of the balloon material provides a force (tension) that if unopposed will collapse the balloon. So if air leaks out of the balloon and the pressure goes down, the balloo ...
What is an astrolabe
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... scholars, often centred on the muwaqqit (a professional astronomer who made calculations for religious purposes) at a mosque. •The astrolabe was an important instrument for making astronomical observations. Ottoman observatory, 1781 Photograph: The Whipple Museum, Cambridge ...
The Origin of the Earth What`s New?
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... modeling and the Giant Impact hypothesis for Moon formation). With a half-life of 8.9 Myr, W isotopes will not record Hf/W changes >60 Myr after the start of the solar system. In principle roughly half the Earth’s core could have formed at the start of the solar system and the other half during the ...
Let f (x) = log x , Let f (x) = loga x , x>0 . (a) Write down the value of (i
Let f (x) = log x , Let f (x) = loga x , x>0 . (a) Write down the value of (i

... Answer: ________!! ...
Explore the Planets
Explore the Planets

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Let f (x) = log x , Let f (x) = loga x , x>0 . (a) Write down the value of (i
Let f (x) = log x , Let f (x) = loga x , x>0 . (a) Write down the value of (i

... Answer: ________!! ...
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Lab: Inverse Square Law
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101 Science Misconceptions
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... Knowing these distances helped find the true scale of the entire solar system for the first time. Halley knew that every 121 years the planet Venus passes in front of the Sun. Venus’ position, relative to the Sun behind it, appears very different when viewed from two different places on Earth. How d ...
Astronomy 103
Astronomy 103

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Possible patterns in the distribution of planetary formation regions

... smaller residuals than the actual solar system is 87%. Lynch (2003) also emphasized that the problem of assesing whether a given event is the result of chance or is so unlikely as to suggest a causative origin, is fraught with difficulty. From his analysis of the positions of the “planets” (not incl ...
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8-4.5 - S2TEM Centers SC

... 3. The North Pole and South Pole each have long periods of complete sunlight and complete darkness. Why? 4. Dialogue as a class about “How does the tilt of the Earth’s axis affect the length of the day and the amount of heating on Earth’s surface, thus causing the seasons of the year?” The earth spi ...
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... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
Size of the Earth
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... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
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... • What if planets aligned (as beads on string)? • They can’t as orbits are not in 1 plane. But even if they could, their pull very weak next to our moon. • Why study other worlds? won’t ease our problems • By understanding other worlds, better know Earth • Your questions are welcome at our public pr ...
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... just as an ice skater spins faster when the arms are drawn in. Astronomers assume ...
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Solution Key

... This is a reasonable value (which is good since the data was taken from a real paper in the Astrophysical Journal). Globular clusters hang out surrounding the center of our galaxy, outside the galactic plane. We are around 8.5 kpc from the galactic center, so it makes sense that a globular cluster s ...
Passport to the Universe Educator`s Guide Text
Passport to the Universe Educator`s Guide Text

... the Earth and the other planets in the larger scheme of things. From out here, the sizes of and distances between the Earth, Sun, and other planets appear relatively small. On our trip, we pass three of the eight planets—Mars, Jupiter (and its moons, Io and Europa), and Saturn. We now head out for ...
Solar Presentation
Solar Presentation

... hot gas measures more than 100,000 km in length. Earth could easily fit between its outstretched “arms.” Dark regions in this TRACE image have temperatures less than 20,000 K; the brightest regions are about 1 million K. The ionized gas follows the solar magnetic field lines away from the Sun. Most ...
Measuring Distances - Stockton University
Measuring Distances - Stockton University

... • A certain type of exploding star called a Type Ia supernova appears to follow a fairly consistent light-curve, peaking at an absolute magnitude of about Mv  -19. This makes them 23.8 magnitudes more luminous than the Sun, equivalent to a factor of 1023.8/2.5 = 3.3 x 109 . • These are now playing ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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