LT 5: I can describe how astronomers determine the composition
... a display of colors and lines called a spectrum. ...
... a display of colors and lines called a spectrum. ...
Astronomy 1 Study Guide Key 16
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
... 7. A galaxy is a collection of stars. Our galaxy is called the Milky Way. 8. It has many solar systems with in its arms. At the center of our spiral galaxy is a black hole, so our galaxy is also called a quasar. Stars Be able to read an H-R diagram. ...
Some space objects are visible to the human eye.
... bird and a plane flew overhead at the same time, you might think that the bird was faster. You would have this impression because the farther away a moving object is from you, the less it seems to move. Stars are always moving, but they are so far away that you cannot see their movements. Observers ...
... bird and a plane flew overhead at the same time, you might think that the bird was faster. You would have this impression because the farther away a moving object is from you, the less it seems to move. Stars are always moving, but they are so far away that you cannot see their movements. Observers ...
Some space objects are visible to the human eye.
... bird and a plane flew overhead at the same time, you might think that the bird was faster. You would have this impression because the farther away a moving object is from you, the less it seems to move. Stars are always moving, but they are so far away that you cannot see their movements. Observers ...
... bird and a plane flew overhead at the same time, you might think that the bird was faster. You would have this impression because the farther away a moving object is from you, the less it seems to move. Stars are always moving, but they are so far away that you cannot see their movements. Observers ...
Lecture 2
... • What does the universe look like from Earth? – We can see over 2,000 stars and the Milky Way with our naked eyes, and each position on the sky belongs to one of 88 constellations – We can specify the position of an object in the local sky by its altitude above the horizon and its direction along t ...
... • What does the universe look like from Earth? – We can see over 2,000 stars and the Milky Way with our naked eyes, and each position on the sky belongs to one of 88 constellations – We can specify the position of an object in the local sky by its altitude above the horizon and its direction along t ...
Sacred Fire – Our Sun - University of Louisville
... ● Other than the hydrogen and helium formed at the time of the Big Bang, nuclear fusion within stars produces all atomic nuclei lighter than and including iron, and the process releases electromagnetic energy. Heavier elements are produced when certain massive stars achieve a supernova stage and exp ...
... ● Other than the hydrogen and helium formed at the time of the Big Bang, nuclear fusion within stars produces all atomic nuclei lighter than and including iron, and the process releases electromagnetic energy. Heavier elements are produced when certain massive stars achieve a supernova stage and exp ...
Slide 1
... Tides are caused by the sun and moons gravitational pull, When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have nothing to do with the season. When the sun and moon are not aligned, ...
... Tides are caused by the sun and moons gravitational pull, When the sun and moon are aligned, there are exceptionally strong gravitational forces, causing very high and very low tides which are called spring tides, though they have nothing to do with the season. When the sun and moon are not aligned, ...
Astronomy Notes
... much gravity that nothing escapes it, not even visible light. - not possible to detect directly because no energy is given off, need to look at surrounding area to find another star caught in its gravity and see what it is doing to that companion star ...
... much gravity that nothing escapes it, not even visible light. - not possible to detect directly because no energy is given off, need to look at surrounding area to find another star caught in its gravity and see what it is doing to that companion star ...
Stars and Moon Summative Review
... Identify the phases of the moon. How does the gravitational pull of the moon affect the Earth? (the side closest and the side farthest) What does a waxing moon indicate? Identify the cause of tides on Earth. Describe the effect that the elliptical orbit of the moon has on the Earth. ...
... Identify the phases of the moon. How does the gravitational pull of the moon affect the Earth? (the side closest and the side farthest) What does a waxing moon indicate? Identify the cause of tides on Earth. Describe the effect that the elliptical orbit of the moon has on the Earth. ...
ASTR100 Class 01 - University of Maryland Department of
... C. The temperature starts low and ends high in both the raisin cake and the universe. D. The raisins stay roughly the same size as the cake expands, just as galaxies stay roughly the same size as the universe expands. E. The average distance increases with time both between raisins in the cake and b ...
... C. The temperature starts low and ends high in both the raisin cake and the universe. D. The raisins stay roughly the same size as the cake expands, just as galaxies stay roughly the same size as the universe expands. E. The average distance increases with time both between raisins in the cake and b ...
Definitions
... • Ecliptic: the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator; "all of the planets rotate the sun in approximately the same ecliptic" ...
... • Ecliptic: the great circle representing the apparent annual path of the sun; the plane of the Earth's orbit around the sun; makes an angle of about 23 degrees with the equator; "all of the planets rotate the sun in approximately the same ecliptic" ...
Word
... Hubble Space Telescope observed the spectrum of this material and, from the Doppler shifts of the spectral lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figu ...
... Hubble Space Telescope observed the spectrum of this material and, from the Doppler shifts of the spectral lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figu ...
File
... All of the celestial bodies in the solar system move in predictable patterns known as orbits, and this motion is controlled by gravity. Every celestial body (including Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. The Sun’s massive gravitationa ...
... All of the celestial bodies in the solar system move in predictable patterns known as orbits, and this motion is controlled by gravity. Every celestial body (including Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. The Sun’s massive gravitationa ...
16SolMW - NMSU Astronomy
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
HOMEWORK #1
... Hubble Space Telescope observed the spectrum of this material and, from the Doppler shifts of the spectral lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figu ...
... Hubble Space Telescope observed the spectrum of this material and, from the Doppler shifts of the spectral lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figu ...
Cosmic Distance Ladder Terrence Tao (UCLA)
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
Solar System 09 - MrFuglestad
... • The gas planets do not have solid surfaces, their gaseous material simply gets denser with depth • Our knowledge of the interior of Jupiter (and the other gas planets) is highly indirect and likely to remain so for some time. (The data from Galileo's atmospheric probe goes down only about 150 km ...
... • The gas planets do not have solid surfaces, their gaseous material simply gets denser with depth • Our knowledge of the interior of Jupiter (and the other gas planets) is highly indirect and likely to remain so for some time. (The data from Galileo's atmospheric probe goes down only about 150 km ...
Engineering the Heavens
... from annual parallax in the direction of that star [Fig. 2], in 1727 Bradley commissioned Graham to build another zenith sector, which could pivot through an angle of 6¾ degrees on either side of the zenith, so as to observe some 200 stars throughout the year. After extensive testing, Bradley was co ...
... from annual parallax in the direction of that star [Fig. 2], in 1727 Bradley commissioned Graham to build another zenith sector, which could pivot through an angle of 6¾ degrees on either side of the zenith, so as to observe some 200 stars throughout the year. After extensive testing, Bradley was co ...
Exoplanets Rising: Understanding Doppler Shift
... Exo means outside of and Planet means Wanderer ...
... Exo means outside of and Planet means Wanderer ...
Chapter 02
... • Learn how scientists divide the sky into constellations • Learn origin of constellations and their names • Understand and apply the concept of magnitude • Understand the celestial sphere • Understand what causes the seasons ...
... • Learn how scientists divide the sky into constellations • Learn origin of constellations and their names • Understand and apply the concept of magnitude • Understand the celestial sphere • Understand what causes the seasons ...
Special Relativity:
... motion of the Earth about the sun by studying the speed of light from a distant star as the Earth went towards it and perpendicular to it as it orbited. (image from scienceworld.wolfram.com) ...
... motion of the Earth about the sun by studying the speed of light from a distant star as the Earth went towards it and perpendicular to it as it orbited. (image from scienceworld.wolfram.com) ...
To know that planets etc. move in elliptical orbits around the Sun.
... The ecliptic is the line that the sun traces across the sky throughout the year. Because the Earth is tilted at a slight angle, the line isn’t straight. It rises up to its peak in summer then falls in winter. ...
... The ecliptic is the line that the sun traces across the sky throughout the year. Because the Earth is tilted at a slight angle, the line isn’t straight. It rises up to its peak in summer then falls in winter. ...
ANSWER KEY Evaluating Scientific Explanations: Why do we have
... How could one of the hemispheres be closer to the sun than the other one? The Earth is one big planet and the tilt doesn’t make any difference in the distance. (Note: This was not modeled in our experiment! The flashlight was so close to the book that when we tilted it, the top part of the book was ...
... How could one of the hemispheres be closer to the sun than the other one? The Earth is one big planet and the tilt doesn’t make any difference in the distance. (Note: This was not modeled in our experiment! The flashlight was so close to the book that when we tilted it, the top part of the book was ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.