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Skinner Chapter 2
Skinner Chapter 2

... heavier elements can form only in the cores of stars more massive than our Sun, or during the process of a supernova. If this is true, then how is it possible that elements heavier than helium exist in the Sun and in other parts of our solar system? 53. Why do you think it is important to begin a st ...
What do we see? Stars Sun Moon Planets How do we organize
What do we see? Stars Sun Moon Planets How do we organize

Theme 3.1 Astronomy of the Ancients Stonehenge Most people
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... go out night after night and look at the motion of Jupiter in this case, over the winter of 2004-2005, you would have noticed it behaving as shown here. It begins by drifting slowly from right to left, from west to east, across the starry backdrop. But then as you get towards the end of 2004 that mo ...
Our Solar System - U
Our Solar System - U

... Our Solar System ...
Our Solar System - Mrs. Carter
Our Solar System - Mrs. Carter

... Mars is the fourth planet from the Sun. It is known as the red planet because of large amounts of rust-colored dust on its surface. Mars is the most Earth-like of all the planets of our Solar System. Mars has seasons similar to our own, and the soil there is similar to the soil on Earth. But there i ...
Kepler`s Laws, Newton`s Laws, and the Search for New Planets
Kepler`s Laws, Newton`s Laws, and the Search for New Planets

... In that case, it would be totally incorrect to assume that either one is fixed, but the correct treatment of the earth-sun motion applies without change; see [3]. Second, this subject provides a good opportunity to say a few words about what is involved physically in the choice of coordinate systems ...
Answers - Partake AR
Answers - Partake AR

... Our Solar System is comprised of 8 planets. The first 4 are known as ____________ Planets and the last 4 are Gas Planets. (Answer: Terrestrial) ...
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... of mysterious “guest stars” – nova – recorded from 100 B.C. and still used today. Texts from 120 B.C. described concepts similar to modern theories on space and time and a revolving earth. ...
Astro 18 – Section Week 2
Astro 18 – Section Week 2

... see this line at a wavelength of 121.3 nm in star A and 122.9 nm in star B. Calculate each star’s speed and state if it’s moving towards or away from us. ...
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What is a scientific model?

Astro 18 – Section Week 2
Astro 18 – Section Week 2

... see this line at a wavelength of 121.3 nm in star A and 122.9 nm in star B. Calculate each star’s speed and state if it’s moving towards or away from us. ...
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... • Because of Earth’s revolution about the sun, near stars seem to shift their position against the farther stars (closer star – greater the shift) • If you observe the same star while earth is at 2 different points during its orbit around the sun, the star’s position relative to the more distant bac ...
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1 - BYU Physics and Astronomy

... 8. Binary star system A consists of two 5M (5-solar mass) stars with a 0.08 AU mean separation; system B consists of a 2M and a 0.6M star with a 0.08 AU mean separation; system C consists of two 5M stars with a 17 AU mean separation; system D consists of a 2M and a 0.6M star with a 17 AU mean ...
Gravity and Motion
Gravity and Motion

... Galileo became convinced that Copernicus was correct by observations of the Sun, Venus, and the moons of Jupiter using the newly-invented telescope.  Perhaps Galileo was motivated to understand inertia by his desire to understand and defend Copernicus’ ideas. ...
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... short-term outbursts on the sun, caused by the sudden release of energy stored in twisted magnetic fields in the solar atmosphere.  release up to 1025 joules of energy—the energy equivalent of ten million volcanic eruptions.  They can last just a few minutes or up to ...
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The Solar System - RHIG - Wayne State University
The Solar System - RHIG - Wayne State University

... observations support the picture of a spherical Earth, such as the `sinking’ of the masts of ships as they sail into the horizon. Eratosthenes was even able to measure the radius of the Earth by observing the shadow of the sun at different latitudes. The Sun and the planets move roughly as the stars ...
Some space objects are visible to the human eye.
Some space objects are visible to the human eye.

... By contrast, the Moon moves across the star background a distance equal to its width every hour as it orbits Earth. The Moon is our closest neighbor. The planets are farther away, but you can see their gradual movements among the constellations over a period of weeks or months. ...
Problem set 1 1. The binding energy per nucleon for 56Fe is 8.8MeV
Problem set 1 1. The binding energy per nucleon for 56Fe is 8.8MeV

... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
Celestial Distances
Celestial Distances

... Stellar Distances To infer the luminosity, mass, and size of a star from observations (as in a celestial census), we need to know the distance to the star How can we measure the great distances to stars? We use various techniques, useful at different scales, with each scale connecting to the next, ...
Chapter 2 Discovering the Universe for Yourself
Chapter 2 Discovering the Universe for Yourself

... 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 Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not ...
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... Distances between objects in space are so great that specifying distance in miles is like giving the distance from here to St. Louis in millimeters. Scientists use light-years instead of miles to specify distances to stars and galaxies. A light-year is actually the distance light travels in one year ...
Astro 4 Practice Test 1
Astro 4 Practice Test 1

... Choose the ONE best answer and mark it on your answer sheet. 1. Which of the following statements best describes the difference between the apparent DIURNAL and ANNUAL motions that we see in the sky? a. There really isn’t any difference between the diurnal and the annual motion, since all motions in ...
Definitions
Definitions

... CONSTELLATIONS ...
Some space objects are visible to the human eye.
Some space objects are visible to the human eye.

... By contrast, the Moon moves across the star background a distance equal to its width every hour as it orbits Earth. The Moon is our closest neighbor. The planets are farther away, but you can see their gradual movements among the constellations over a period of weeks or months. ...
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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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