MIDTERM #1 AST209 - The Cosmos Feb 10, 2012 50 minutes
... D) explained and predicted the motions of the planets with deferents and epicycles. E) describes the orbits of the planets as being ellipses, not circles. 31. Which of the following statements about the celestial equator is true at all latitudes? A) It represents an extension of Earth's equator onto ...
... D) explained and predicted the motions of the planets with deferents and epicycles. E) describes the orbits of the planets as being ellipses, not circles. 31. Which of the following statements about the celestial equator is true at all latitudes? A) It represents an extension of Earth's equator onto ...
Astronomy Notes - Science with Ms. Peralez
... light a star gives off Apparent magnitude- measure of amount of light received on Earth ...
... light a star gives off Apparent magnitude- measure of amount of light received on Earth ...
Seasonal Visibility of Stars, and Visibility of Planets in 2014
... These two charts of the orbits of the planets, one showing Mercury through Mars, and the other Mercury through Saturn, depict the view as seen from the north side, or “above” the solar system. In these views, the direction of revolution of the planets about the Sun is counterclockwise. The outer cir ...
... These two charts of the orbits of the planets, one showing Mercury through Mars, and the other Mercury through Saturn, depict the view as seen from the north side, or “above” the solar system. In these views, the direction of revolution of the planets about the Sun is counterclockwise. The outer cir ...
Lecture 3
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
Life Cycle Of A Star
... In the night we see things we know as stars, but they’re not simple, they’re life is very complex and has lots of stages. A star is a large sphere of hot gas that produces heat and light. There are many stars in our galaxy, and many more in others, but the star that is the most important and the one ...
... In the night we see things we know as stars, but they’re not simple, they’re life is very complex and has lots of stages. A star is a large sphere of hot gas that produces heat and light. There are many stars in our galaxy, and many more in others, but the star that is the most important and the one ...
30-2 Directed Reading
... _____ 22. What is a white dwarf? a. a cool, extremely scattered core of matter leftover from an old star b. a hot, extremely scattered core of matter leftover from a red giant c. a hot, extremely dense core of matter leftover from an old star d. a cool, extremely dense core of matter leftover from a ...
... _____ 22. What is a white dwarf? a. a cool, extremely scattered core of matter leftover from an old star b. a hot, extremely scattered core of matter leftover from a red giant c. a hot, extremely dense core of matter leftover from an old star d. a cool, extremely dense core of matter leftover from a ...
Stellar Evolution - Hays High Indians
... • Some stars appear brighter than others • Learn about stars by studying the light they emit • Star’s color is related to its temperature • Spectral lines reveal which elements are in the stars ...
... • Some stars appear brighter than others • Learn about stars by studying the light they emit • Star’s color is related to its temperature • Spectral lines reveal which elements are in the stars ...
Document
... as a framework for how that history made our existence possible. So first we need to know something of the structure and arrangement of this universe whose history we want to describe. Theme - Gaining perspective on how we connect to the universe: we are products of the whole universe, not just our ...
... as a framework for how that history made our existence possible. So first we need to know something of the structure and arrangement of this universe whose history we want to describe. Theme - Gaining perspective on how we connect to the universe: we are products of the whole universe, not just our ...
A Absolute Magnitude A scale for measuring the actual
... A gigantic ball of ice and rock that orbit the Sun in a highly eccentric orbit. Some comets have an orbit that brings them close to the Sun where they form a long tail of gas and dust as they are heated by the Sun's rays. Conjunction An event that occurs when two or more celestial objects appear clo ...
... A gigantic ball of ice and rock that orbit the Sun in a highly eccentric orbit. Some comets have an orbit that brings them close to the Sun where they form a long tail of gas and dust as they are heated by the Sun's rays. Conjunction An event that occurs when two or more celestial objects appear clo ...
Part I: The Speed of Light Part II: Calcula ng a Light Year
... 4. You are on a space ship that can travel the speed of light, and you are going to visit Proxima Centauri. Proxima Centauri is 4.2 light years away. How long would it take you to t ...
... 4. You are on a space ship that can travel the speed of light, and you are going to visit Proxima Centauri. Proxima Centauri is 4.2 light years away. How long would it take you to t ...
The gravitational force between two objects is proportional to their
... • Heavenly bodies: sun, planets, stars…How planets move? Greeks: • Stars remain in the same relative position to one another as they move across the sky. • Several bright “stars” exhibit motion relative to other stars. • Bright “wanderers” called planets. • Planets roam in regular but curious manner ...
... • Heavenly bodies: sun, planets, stars…How planets move? Greeks: • Stars remain in the same relative position to one another as they move across the sky. • Several bright “stars” exhibit motion relative to other stars. • Bright “wanderers” called planets. • Planets roam in regular but curious manner ...
September - Rose City Astronomers
... of Japan’s leading makers of fine telescopes, the #339 was distributed worldwide. Many thousands of units were sold over a twenty-year time period. The 600 power telescope, due to its popularity, was remarketed by a number of different companies with their own model numbers. Meade ran continual ads ...
... of Japan’s leading makers of fine telescopes, the #339 was distributed worldwide. Many thousands of units were sold over a twenty-year time period. The 600 power telescope, due to its popularity, was remarketed by a number of different companies with their own model numbers. Meade ran continual ads ...
850616SemStudyGuide_AstSns
... one infinitely small area. Something happened (no one knows for sure what....) to cause it to explode. This caused all the matter to spread outward. The first thing to form were gases. They were very hot at first, but began to cool down as the distance between all the gas molecules increased due to ...
... one infinitely small area. Something happened (no one knows for sure what....) to cause it to explode. This caused all the matter to spread outward. The first thing to form were gases. They were very hot at first, but began to cool down as the distance between all the gas molecules increased due to ...
Ch 20 Notes Stars
... electromagnetic radiation, such as high energy X rays and low energy radio waves ...
... electromagnetic radiation, such as high energy X rays and low energy radio waves ...
The Celestial Sphere
... According to the Lakota, the Constellation of the Hand, namely the bottom half of the constellation Orion, represents the arm of a great Lakota chief. The gods wanted to punish the Lakota's chief for his selfishness and made the Thunder People rip out his arm. The chief's daughter offered to marry a ...
... According to the Lakota, the Constellation of the Hand, namely the bottom half of the constellation Orion, represents the arm of a great Lakota chief. The gods wanted to punish the Lakota's chief for his selfishness and made the Thunder People rip out his arm. The chief's daughter offered to marry a ...
fourier transform
... •Observe the source for some hours, letting the Earth rotate the baseline •Correlate the signals between telescopes, and store the results of those multiplications on disk •At the end of the observation, assign the results of the multiplications to the correct position on the u-v disk •Fourier Trans ...
... •Observe the source for some hours, letting the Earth rotate the baseline •Correlate the signals between telescopes, and store the results of those multiplications on disk •At the end of the observation, assign the results of the multiplications to the correct position on the u-v disk •Fourier Trans ...
telescopes - NPZ Optics
... High magnification of the main telescope makes it difficult to find a required celestial object in the sky because of the small field of view. This is why the telescope is equipped with a low-power finder scope with a wide field of view. The finder scope makes it easier to locate the object you want ...
... High magnification of the main telescope makes it difficult to find a required celestial object in the sky because of the small field of view. This is why the telescope is equipped with a low-power finder scope with a wide field of view. The finder scope makes it easier to locate the object you want ...
Lesson Plan for "Our Solar System: The Planets"
... clouds of Venus. However, the images offered little detail, and basic questions about the nature of the planets’ surfaces remained unanswered. For example, the fuzzy images made from Earth-based telescopes could not begin to reveal the detailed structure of objects in space. Not even the Hubble Spac ...
... clouds of Venus. However, the images offered little detail, and basic questions about the nature of the planets’ surfaces remained unanswered. For example, the fuzzy images made from Earth-based telescopes could not begin to reveal the detailed structure of objects in space. Not even the Hubble Spac ...
Orion- The Swordsman of the Sky - A Winter Constellation from the
... which require magnification to see them, such as the Horse Head Nebula. You have to imagine, and possibly take your finger to join the dots, but you can virtually see the shoulders of Orion. The left shoulder star (seen from our vantage point) is Betelgeuse. This is a red super giant star, which als ...
... which require magnification to see them, such as the Horse Head Nebula. You have to imagine, and possibly take your finger to join the dots, but you can virtually see the shoulders of Orion. The left shoulder star (seen from our vantage point) is Betelgeuse. This is a red super giant star, which als ...
AST121 Introduction to Astronomy
... A comparison of two EIT images almost two years apart illustrates how the level of solar activity has increased significantly. The Sun attains its expected sunspot maximum in the year 2000. These images are captured using Fe IX-X 171 Å emission showing the solar corona at a temperature of about 1.3 ...
... A comparison of two EIT images almost two years apart illustrates how the level of solar activity has increased significantly. The Sun attains its expected sunspot maximum in the year 2000. These images are captured using Fe IX-X 171 Å emission showing the solar corona at a temperature of about 1.3 ...
Parallax - High Point University
... A comparison of two EIT images almost two years apart illustrates how the level of solar activity has increased significantly. The Sun attains its expected sunspot maximum in the year 2000. These images are captured using Fe IX-X 171 Å emission showing the solar corona at a temperature of about 1.3 ...
... A comparison of two EIT images almost two years apart illustrates how the level of solar activity has increased significantly. The Sun attains its expected sunspot maximum in the year 2000. These images are captured using Fe IX-X 171 Å emission showing the solar corona at a temperature of about 1.3 ...
Name: Date:
... 5. If a star’s spectrum is shifted toward the blue end of the spectrum, (blue shift) which way are the stars moving? ______________________________________________ _________________________________________________________________________ 6. If a star’s spectrum is shifted toward the red end of the s ...
... 5. If a star’s spectrum is shifted toward the blue end of the spectrum, (blue shift) which way are the stars moving? ______________________________________________ _________________________________________________________________________ 6. If a star’s spectrum is shifted toward the red end of the s ...
Stellar evolution, II
... because the weight of all the layers presses down on the core more than the layers in less massive stars. The hotter the core, the faster the nuclear reactions run. The faster the nuclear reactions run, the more luminosity the star has. This explains why more massive stars have greater luminosity, a ...
... because the weight of all the layers presses down on the core more than the layers in less massive stars. The hotter the core, the faster the nuclear reactions run. The faster the nuclear reactions run, the more luminosity the star has. This explains why more massive stars have greater luminosity, a ...
Unit 3 - Section 9.7 2011 Universe Origin
... shifting is known as a Doppler shift. By measuring the shift in wavelength, the speed of movement away (red) or towards (blue) Earth can be calculated. When a galaxy is rotating, the starlight from stars on the side of the galaxy that is moving towards are blue-shifted (…think opposite of Red Shift) ...
... shifting is known as a Doppler shift. By measuring the shift in wavelength, the speed of movement away (red) or towards (blue) Earth can be calculated. When a galaxy is rotating, the starlight from stars on the side of the galaxy that is moving towards are blue-shifted (…think opposite of Red Shift) ...
educational activities for the international Year of astronomy
... economics, and energy conservation. For this reason, “Dark Skies” is an IYA theme that seeks to raise awareness of the adverse impacts of excess artificial lighting on local environments by getting citizen-scientists involved in a variety of dark skies-related programs. As a means to reach this goal ...
... economics, and energy conservation. For this reason, “Dark Skies” is an IYA theme that seeks to raise awareness of the adverse impacts of excess artificial lighting on local environments by getting citizen-scientists involved in a variety of dark skies-related programs. As a means to reach this goal ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.