Cosmology Î Bottom-Up formation of structures
... • Plug into equations for luminosity or angular size distance as needed (Ned Wright’s Cosmology Calculator) ...
... • Plug into equations for luminosity or angular size distance as needed (Ned Wright’s Cosmology Calculator) ...
Earth Science 2nd 9 wk review
... Comet’s tail points away from the sun because the solar wind blows the tail away from the sun. What property would a mineral have if it appears like a new quarter when reflecting light? ...
... Comet’s tail points away from the sun because the solar wind blows the tail away from the sun. What property would a mineral have if it appears like a new quarter when reflecting light? ...
Review1
... What causes the occurrence of seasons on the Earth? What causes the phases of the moon? What are the angles of the earth, moon and the sun At full moon, new moon, a quarter moon. What is precession of the earth’s axis and how long it takes to complete one cycle. What are the consequences of this pre ...
... What causes the occurrence of seasons on the Earth? What causes the phases of the moon? What are the angles of the earth, moon and the sun At full moon, new moon, a quarter moon. What is precession of the earth’s axis and how long it takes to complete one cycle. What are the consequences of this pre ...
Observing the Sky
... • Astronomy is the study of all physical objects beyond Earth. Today, astronomers all over the world are using new technologies to better understand the universe. • A calendar is a system for organizing time. Most calendars organize time within a single unit called a year. A year is the time require ...
... • Astronomy is the study of all physical objects beyond Earth. Today, astronomers all over the world are using new technologies to better understand the universe. • A calendar is a system for organizing time. Most calendars organize time within a single unit called a year. A year is the time require ...
Sun, Earth and Moon Model
... is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. That means its parent star orbits alongside two other stars. This makes sunrises and sunsets something special — sometimes one sun rises in the sky, sometimes it’s two or three! But de ...
... is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. That means its parent star orbits alongside two other stars. This makes sunrises and sunsets something special — sometimes one sun rises in the sky, sometimes it’s two or three! But de ...
HOMEWORK 5 SOLUTIONS CHAPTER 9 4.A A red giant star will
... 1.C The halo is home to old, metal-poor stars. Globular clusters contain some of the oldest stars in the Milky Way; they may have been the precursors to the Milky Way itself. 3.C The Sun is about 75 percent hydrogen and it formed about 5 billion years ago. Since that time, the makeup of the gas in t ...
... 1.C The halo is home to old, metal-poor stars. Globular clusters contain some of the oldest stars in the Milky Way; they may have been the precursors to the Milky Way itself. 3.C The Sun is about 75 percent hydrogen and it formed about 5 billion years ago. Since that time, the makeup of the gas in t ...
Astr 40 Final Exam Review ()
... underwent a supernova explosion right now, approximately how long would it be until we found out about it? 5300 years. 9. The most important reason for measuring the parallax of a star is to help us find the stars intrinsic brightness (absolute magnitude) or luminosity. 10. If two intrinsically iden ...
... underwent a supernova explosion right now, approximately how long would it be until we found out about it? 5300 years. 9. The most important reason for measuring the parallax of a star is to help us find the stars intrinsic brightness (absolute magnitude) or luminosity. 10. If two intrinsically iden ...
Section 2
... temperature is based on the color of the star • Blue or blue white is the hottest and red is the coolest ...
... temperature is based on the color of the star • Blue or blue white is the hottest and red is the coolest ...
Telescopes
... Hubble Space Telescope (HST) • 2.4m diameter mirror • Ultraviolet/optical/infrared • Above (most of) Earth’s atmosphere • High angular resolution • Light not blocked in ultraviolet (or infrared) • Low earth orbit • 600 km (370 mile) altitude • 95 min orbits • Earth blocks view half of each orbit • ...
... Hubble Space Telescope (HST) • 2.4m diameter mirror • Ultraviolet/optical/infrared • Above (most of) Earth’s atmosphere • High angular resolution • Light not blocked in ultraviolet (or infrared) • Low earth orbit • 600 km (370 mile) altitude • 95 min orbits • Earth blocks view half of each orbit • ...
The Sun
... The center of the sun Very, very hot At the core, gravity pulls all of the mass inward and creates an intense pressure. The pressure is high enough to force atoms of hydrogen to come together in nuclear fusion reactions -something we try to mirror here on Earth. ...
... The center of the sun Very, very hot At the core, gravity pulls all of the mass inward and creates an intense pressure. The pressure is high enough to force atoms of hydrogen to come together in nuclear fusion reactions -something we try to mirror here on Earth. ...
May 2005 - Pomona Valley Amateur Astronomers
... be enough of those to go around, even when scientific probes can photograph the other side (perhaps in 2011). Venus is even more of a Hades. Considering it's the same size as the Earth it's a tragic real estate disaster. Because of its thick carbon dioxide (96%) filled atmosphere the surface of Venu ...
... be enough of those to go around, even when scientific probes can photograph the other side (perhaps in 2011). Venus is even more of a Hades. Considering it's the same size as the Earth it's a tragic real estate disaster. Because of its thick carbon dioxide (96%) filled atmosphere the surface of Venu ...
Notes
... E. _________________________ holds the solar system together 1. We usually think of gravity as the ____________________ that pulls us to the Earth. 2. True definition of gravity is the attractive force between ____________. 3. The more _________ an object has the ________ its gravitational pull. a. ...
... E. _________________________ holds the solar system together 1. We usually think of gravity as the ____________________ that pulls us to the Earth. 2. True definition of gravity is the attractive force between ____________. 3. The more _________ an object has the ________ its gravitational pull. a. ...
Key Stage 2: Teacher`s Pack
... 1. Which of the two inner planets are most similar in size? Venus and Earth 2. The Earth disc is about 70cm in diameter. Estimate the diameter of the Mars disc. 35cm (the diameter of Mars is around half that of the Earth’s) 3. The Earth disc lies 15m from the model Sun. How far (on average) is the r ...
... 1. Which of the two inner planets are most similar in size? Venus and Earth 2. The Earth disc is about 70cm in diameter. Estimate the diameter of the Mars disc. 35cm (the diameter of Mars is around half that of the Earth’s) 3. The Earth disc lies 15m from the model Sun. How far (on average) is the r ...
PHYS299B_Final_HudsonJustin
... • Using the UMD Observatory 6 and 7inch telescopes, with CCD cameras to gather images we must first cool the CCD cameras for at least 2 hours. • Following cooling, taking flat images of the sky slowly getting darker as day turns to night to help clean up our images that could be altered by dust or o ...
... • Using the UMD Observatory 6 and 7inch telescopes, with CCD cameras to gather images we must first cool the CCD cameras for at least 2 hours. • Following cooling, taking flat images of the sky slowly getting darker as day turns to night to help clean up our images that could be altered by dust or o ...
1 - Alice Pevyhouse
... 17. The granulation seen in photographs of the Sun is the tops of convective cells (T/F) 18. The Sun is continuously losing mass due to nuclear reactions and to the solar wind (T/F) 21. The hotter region directly above the Sun’s visible surface(the part that we normally see is called what? 23. Not ...
... 17. The granulation seen in photographs of the Sun is the tops of convective cells (T/F) 18. The Sun is continuously losing mass due to nuclear reactions and to the solar wind (T/F) 21. The hotter region directly above the Sun’s visible surface(the part that we normally see is called what? 23. Not ...
20Oct_2014
... be seen as rolling “downhill” towards them • If the mass is large enough, space can be so warped that objects entering it can never leave – a black hole is formed. ...
... be seen as rolling “downhill” towards them • If the mass is large enough, space can be so warped that objects entering it can never leave – a black hole is formed. ...
The Sun - Hicksville Public Schools
... weeks or months. During this short interval, a supernova can radiate as much energy as the Sun would emit over 10 billion years. The explosion expels much or all of a star's material at high velocity, driving a shock wave into the surrounding interstellar medium, where it sweeps up an expanding shel ...
... weeks or months. During this short interval, a supernova can radiate as much energy as the Sun would emit over 10 billion years. The explosion expels much or all of a star's material at high velocity, driving a shock wave into the surrounding interstellar medium, where it sweeps up an expanding shel ...
Astronomy Power Point
... • Detects radio waves given off by objects in space • Most have curved reflecting surfaces that are several hundred meters in diameter • The bigger the radio telescope, the more radio waves it can collect ...
... • Detects radio waves given off by objects in space • Most have curved reflecting surfaces that are several hundred meters in diameter • The bigger the radio telescope, the more radio waves it can collect ...
Optics
... Intensity of visible (0.4 - 0.6 micron) light from a photographic survey. Due to the strong obscuring effect of interstellar dust,the light is primarily from stars within a few thousand light-years of the Sun, nearby on the scale of the Milky Way. The widespread bright red regions are produced by gl ...
... Intensity of visible (0.4 - 0.6 micron) light from a photographic survey. Due to the strong obscuring effect of interstellar dust,the light is primarily from stars within a few thousand light-years of the Sun, nearby on the scale of the Milky Way. The widespread bright red regions are produced by gl ...
Kepler`s Laws wkst
... 8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole. Suppose the star’s orbit has a mean radius of 2.30 1010 m and a period of 6.47 days. What is the mass of the black hole? How many times larger is the mass of the black ...
... 8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole. Suppose the star’s orbit has a mean radius of 2.30 1010 m and a period of 6.47 days. What is the mass of the black hole? How many times larger is the mass of the black ...
Topic 9/10
... Nuclear fusion- where the sun gets its energy, 2 hydrogens fuse (combine) to form a helium Sunspots- temporary storms on the visible surface of the sun Galaxy- large body of stars and matter in space, there are over 100 billion galaxies with an average of 100 billion stars in each Red-shift- evidenc ...
... Nuclear fusion- where the sun gets its energy, 2 hydrogens fuse (combine) to form a helium Sunspots- temporary storms on the visible surface of the sun Galaxy- large body of stars and matter in space, there are over 100 billion galaxies with an average of 100 billion stars in each Red-shift- evidenc ...
Review 1 - AST 1002 - FSU Physics Department
... Assuming Viking 1 is 90 AU away from Earth, how long would a radio signal from it take to reach us? ...
... Assuming Viking 1 is 90 AU away from Earth, how long would a radio signal from it take to reach us? ...
Name
... shifted to the ________ end of the spectrum. 8. The fact that almost all galaxies exhibit a red shift indicates _________________ 9. The farther away a galaxy is the faster it is moving away. This is Hubble’s Law. ...
... shifted to the ________ end of the spectrum. 8. The fact that almost all galaxies exhibit a red shift indicates _________________ 9. The farther away a galaxy is the faster it is moving away. This is Hubble’s Law. ...
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.