Exam 3 Solution Set - Indiana University Astronomy
... R = 0.6 x 7 x 1010 cm = 4.2 x 1010 cm initially, and it shrinks to 4.16 x 1010 cm The difference in energy at these two radii is 4.8 x 1045 ergs. The luminosity of the star is 0.06 x 4 x 1033 erg s-1 = 2.4 x 1032 erg s-1 , so the energy released by the sudden contraction is 2 x 1013 greater. 4. Esti ...
... R = 0.6 x 7 x 1010 cm = 4.2 x 1010 cm initially, and it shrinks to 4.16 x 1010 cm The difference in energy at these two radii is 4.8 x 1045 ergs. The luminosity of the star is 0.06 x 4 x 1033 erg s-1 = 2.4 x 1032 erg s-1 , so the energy released by the sudden contraction is 2 x 1013 greater. 4. Esti ...
Galaxy Zoo: Pre and post‐workshop information
... The most accurate value for the Hubble constant has been determined using a different technique to Hubble. A satellite called the Wilkinson Microwave Anisotropy Probe (WMAP) has been measuring temperature fluctuations as small as 0.0002 K in the left‐over radiation from the Big Bang (called the cosmic ...
... The most accurate value for the Hubble constant has been determined using a different technique to Hubble. A satellite called the Wilkinson Microwave Anisotropy Probe (WMAP) has been measuring temperature fluctuations as small as 0.0002 K in the left‐over radiation from the Big Bang (called the cosmic ...
Radiation
... The Northern Hemisphere has its maximum tilt toward the Sun on or about June 21, (June solstice). Six months later (on or about December 21), the Northern Hemisphere has its minimum availability of solar radiation on the December solstice. Intermediate between the two solstices are the March equinox ...
... The Northern Hemisphere has its maximum tilt toward the Sun on or about June 21, (June solstice). Six months later (on or about December 21), the Northern Hemisphere has its minimum availability of solar radiation on the December solstice. Intermediate between the two solstices are the March equinox ...
Lecture Summary (11/22)
... was left of the star that blew up. If the core mass is greater than three solar masses after a supernova, even the neutrons are forced together and the result is the formation of a black hole. Even though light can't escape from beyond the event horizon, astronomers believe that they have detected b ...
... was left of the star that blew up. If the core mass is greater than three solar masses after a supernova, even the neutrons are forced together and the result is the formation of a black hole. Even though light can't escape from beyond the event horizon, astronomers believe that they have detected b ...
1 2 3 4 5 6 Orbital Distance (AU) Orbital Period (Years) 1 2 3 4 5 6 7
... c. because the car must overcome friction and wind resistance, a force is involved d. both b. and c. are true 14.) Galileo's telescopes a. had really good lenses that allowed him to see fine details b. were limited in resolution by poor lenses and the need to reduce their apertures c. were the first ...
... c. because the car must overcome friction and wind resistance, a force is involved d. both b. and c. are true 14.) Galileo's telescopes a. had really good lenses that allowed him to see fine details b. were limited in resolution by poor lenses and the need to reduce their apertures c. were the first ...
SC.4.E.5.4,5.1, 5.2, 5.3 Earth & Space
... 2. Why do stars appear to move across the night sky? Answer: The stars appear to move because of Earth’s rotation. Constellations or patterns of stars also change with the seasons because Earth is orbiting around the sun. 3. Why do constellations change with the seasons? Answer: The constellations h ...
... 2. Why do stars appear to move across the night sky? Answer: The stars appear to move because of Earth’s rotation. Constellations or patterns of stars also change with the seasons because Earth is orbiting around the sun. 3. Why do constellations change with the seasons? Answer: The constellations h ...
Earth Space EOC Review Test #2 NAME
... mostly to human destruction, such as deforestation and urbanization. Wetlands are vital for amphibians, which include frogs, salamanders, and newts. The females lay their eggs in depressions in the ground that fill up with water and triggers the eggs to hatch. These depressions are known as vernal p ...
... mostly to human destruction, such as deforestation and urbanization. Wetlands are vital for amphibians, which include frogs, salamanders, and newts. The females lay their eggs in depressions in the ground that fill up with water and triggers the eggs to hatch. These depressions are known as vernal p ...
The Facts on the Moon
... The average distance from the earth to the sun, the semi major axis of its orbit, is 149,597,890 km. This distance was not known until recently and it is called the astronomical unit or AU. The distances of the other planets to the sun are usually measured in astronomical units. ...
... The average distance from the earth to the sun, the semi major axis of its orbit, is 149,597,890 km. This distance was not known until recently and it is called the astronomical unit or AU. The distances of the other planets to the sun are usually measured in astronomical units. ...
but restricted to nearby large stars
... From cycle to cycle, the polarities of leading and trailing with respect to the solar rotation] sunspots change from north/south to south/north and back. Sunspots usually appear in groups. ...
... From cycle to cycle, the polarities of leading and trailing with respect to the solar rotation] sunspots change from north/south to south/north and back. Sunspots usually appear in groups. ...
Sun Lecture
... The Sun produces energy by converting mass into energy. The luminosity of the Sun thus represents a continual mass loss. The Sun is currently converting 4.3 million metric tones of mass into energy each second. How long can the Sun maintain this rate of mass loss? Simple answer: ____________ ...
... The Sun produces energy by converting mass into energy. The luminosity of the Sun thus represents a continual mass loss. The Sun is currently converting 4.3 million metric tones of mass into energy each second. How long can the Sun maintain this rate of mass loss? Simple answer: ____________ ...
The Moon.
... Answer: The constellations have been in the same positions for thousands of years. As Earth orbits the sun, it goes through different areas of space. This means that each season Earth is in a different part of space. For this reason, the constellations or star patterns that can be seen from Earth ch ...
... Answer: The constellations have been in the same positions for thousands of years. As Earth orbits the sun, it goes through different areas of space. This means that each season Earth is in a different part of space. For this reason, the constellations or star patterns that can be seen from Earth ch ...
Unit 1
... system The tension in the string provides this force. Newton determined that this force can be described by the following equation: ...
... system The tension in the string provides this force. Newton determined that this force can be described by the following equation: ...
Common Misconceptions in Astronomy and History
... Copernican model to solve correctly for the changes which Tycho Brahe had observed in the positional shifts of the planet Mars. Kepler used ellipses to explain the planetary motions, rather than circles, which Copernicus had retained in his theory, Tycho's data fit precisely with the orbital paramet ...
... Copernican model to solve correctly for the changes which Tycho Brahe had observed in the positional shifts of the planet Mars. Kepler used ellipses to explain the planetary motions, rather than circles, which Copernicus had retained in his theory, Tycho's data fit precisely with the orbital paramet ...
The cosmic distance ladder
... Orion nebula, Hubble & Spitzer telescopes, composite image, NASA/JPL ...
... Orion nebula, Hubble & Spitzer telescopes, composite image, NASA/JPL ...
Back to basics: naked-eye astronomical observation
... and even the feeling of gravity holding this large ‘rock’ in orbit. A study of the Moon’s surface in binoculars or a small telescope can generate super hand drawings: the skill and accuracy and observational techniques, with each pupil becoming a mini-Schiaparelli, are surely a useful tool in any sc ...
... and even the feeling of gravity holding this large ‘rock’ in orbit. A study of the Moon’s surface in binoculars or a small telescope can generate super hand drawings: the skill and accuracy and observational techniques, with each pupil becoming a mini-Schiaparelli, are surely a useful tool in any sc ...
2011 - Edexcel
... (d) In the space below, sketch and label the relative positions of the Sun, Earth and Moon during a lunar eclipse. ...
... (d) In the space below, sketch and label the relative positions of the Sun, Earth and Moon during a lunar eclipse. ...
SPACE Jeopardy
... This planet is known for its rings, which are so wide and bright that they can be seen from Earth. ...
... This planet is known for its rings, which are so wide and bright that they can be seen from Earth. ...
The cosmic distance ladder
... Orion nebula, Hubble & Spitzer telescopes, composite image, NASA/JPL ...
... Orion nebula, Hubble & Spitzer telescopes, composite image, NASA/JPL ...
Stars - Robert M. Hazen
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small to begin nuclear fusion reactions. ...
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small to begin nuclear fusion reactions. ...
Homework 7
... So the farther apart the particles are, and/or the less massive the particles, the less the gravitational force. The standard formula for the law of gravitation is: Gravitational force = (G * M1 * M2) / (A2) where G is the gravitational constant, m1 and m2 are the masses of the two objects for whic ...
... So the farther apart the particles are, and/or the less massive the particles, the less the gravitational force. The standard formula for the law of gravitation is: Gravitational force = (G * M1 * M2) / (A2) where G is the gravitational constant, m1 and m2 are the masses of the two objects for whic ...
