PHYSICAL SCIENCE STUDY GUIDE CHAPTER 10: 1. What are the
... 2. Compare Copernicus’ heliocentric solar system with Ptolemy’s geocentric solar system. How does each explain the retrograde motion of the planets? 3. State and explain each of Kepler’s three laws of planetary motion. 4. Mention several of Galileo’s telescopic observations and explain how they supp ...
... 2. Compare Copernicus’ heliocentric solar system with Ptolemy’s geocentric solar system. How does each explain the retrograde motion of the planets? 3. State and explain each of Kepler’s three laws of planetary motion. 4. Mention several of Galileo’s telescopic observations and explain how they supp ...
BIRTH OF CHRIST RECALCULATED Preliminary Considerations
... a. Titius, prior to 7BC. b. Q. Varus, 7 or 6 to 4BC. c. S. Saturinius, 4 to 2BC. d. Q. Varus (a 2nd term), 2BC to 1AD. e. G. Caesar, 1AD to 4AD. The census (registration) of 3/2BC is mentioned only by Luke and Tertullian (Augustus wrote an account of the major events of his life; he wrote of officia ...
... a. Titius, prior to 7BC. b. Q. Varus, 7 or 6 to 4BC. c. S. Saturinius, 4 to 2BC. d. Q. Varus (a 2nd term), 2BC to 1AD. e. G. Caesar, 1AD to 4AD. The census (registration) of 3/2BC is mentioned only by Luke and Tertullian (Augustus wrote an account of the major events of his life; he wrote of officia ...
ABOUT PARALLAX AND… CONSTELLATIONS Abstract
... 1996 and used to create the Millennium Star Atlas, whose data are available through the Internet. In the second part of this workshop, we shall collect these data about the stars of a wellknown constellation (Ursa Major or Leo for example) and use them to determine the movement of each of its stars ...
... 1996 and used to create the Millennium Star Atlas, whose data are available through the Internet. In the second part of this workshop, we shall collect these data about the stars of a wellknown constellation (Ursa Major or Leo for example) and use them to determine the movement of each of its stars ...
Reconnaissance of the TRAPPIST-1 exoplanet system in the Lyman
... the planet orbital velocity and the relative strength of radiation pressure and stellar gravity (Bourrier et al. 2015). The faint Ly-α line of TRAPPIST-1 yields a radiation pressure that can only compensate for up to 20% of the star gravity (Fig. 2). This is reminiscent of the giant hydrogen exosphe ...
... the planet orbital velocity and the relative strength of radiation pressure and stellar gravity (Bourrier et al. 2015). The faint Ly-α line of TRAPPIST-1 yields a radiation pressure that can only compensate for up to 20% of the star gravity (Fig. 2). This is reminiscent of the giant hydrogen exosphe ...
PYTS/ASTR 206 – The Sun
... Maunder minimum is a period without much sun-spot activity Corresponds to a period of anomalous climate in Europe and North-America Little ice age in Europe – droughts in N. America ...
... Maunder minimum is a period without much sun-spot activity Corresponds to a period of anomalous climate in Europe and North-America Little ice age in Europe – droughts in N. America ...
rEVIEW CHAPTER 6
... 51. Consider what you have learned about the inversesquare law. Would it be possible for the force of gravity between two very heavy supertankers to cause them to float toward each other and collide? Explain your reasoning. (6.1) T/I C A 52. A satellite in orbit above Earth’s equator is travel ...
... 51. Consider what you have learned about the inversesquare law. Would it be possible for the force of gravity between two very heavy supertankers to cause them to float toward each other and collide? Explain your reasoning. (6.1) T/I C A 52. A satellite in orbit above Earth’s equator is travel ...
Mars-Bound Comet Siding Spring Sprouts Multiple Jets Eastern
... This is an orbit diagram for the outer solar system. The Sun and Terrestrial planets are at the center. The orbits of the four giant planets, Jupiter, Saturn, Uranus and Neptune, are shown by purple solid circles. The Kuiper Belt, including Pluto, is shown by the dotted light blue region just beyond ...
... This is an orbit diagram for the outer solar system. The Sun and Terrestrial planets are at the center. The orbits of the four giant planets, Jupiter, Saturn, Uranus and Neptune, are shown by purple solid circles. The Kuiper Belt, including Pluto, is shown by the dotted light blue region just beyond ...
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... We now introduce the concept of proper motion, as stellar positions change through both parallax and proper motion, and astrometric programs seek to measure both of these.. Since stars move around with random motions within our Galaxy as well as rotate around its center, there are two components to ...
... We now introduce the concept of proper motion, as stellar positions change through both parallax and proper motion, and astrometric programs seek to measure both of these.. Since stars move around with random motions within our Galaxy as well as rotate around its center, there are two components to ...
Astro 27 Solar System Formation and ExoPlanets Slide Show
... • The formation sequence we laid out fits well known physics and accounts for all of these features. It’s the odds-on favorite for “The Truth”, albeit no doubt there’s details which are yet to be fully worked out • Many of these details will no doubt become clearer as we discover new planets around ...
... • The formation sequence we laid out fits well known physics and accounts for all of these features. It’s the odds-on favorite for “The Truth”, albeit no doubt there’s details which are yet to be fully worked out • Many of these details will no doubt become clearer as we discover new planets around ...
What Comets Are Made
... studied both chunks using NASA’s Infrared Telescope Facility and the Keck II telescope, both on Hawaii’s Mauna Kea. The researchers found that B and C have nearly identical compositions, with the same proportions of substances such as water and carbon dioxide. Those results suggest that comets have ...
... studied both chunks using NASA’s Infrared Telescope Facility and the Keck II telescope, both on Hawaii’s Mauna Kea. The researchers found that B and C have nearly identical compositions, with the same proportions of substances such as water and carbon dioxide. Those results suggest that comets have ...
NASA`s Webb Telescope`s Last Backbone Component Completed
... · With the solstice a week away, have you been watching the sunset point on your horizon day by day? See the June Sky & Telescope, page 50, for more on watching the reality of the solstice. Saturday, June 15 · Mercury is drawing closer to Venus as it fades in the twilight, as shown at right. They're ...
... · With the solstice a week away, have you been watching the sunset point on your horizon day by day? See the June Sky & Telescope, page 50, for more on watching the reality of the solstice. Saturday, June 15 · Mercury is drawing closer to Venus as it fades in the twilight, as shown at right. They're ...
The GAIA astrometric survey of extra
... range 0.1 ≤ MJ ≤ 5, orbiting 1-M⊙ stars with periods up to twice the mission duration, and placing the systems at increasing distances from our Sun. We parameterized our results in terms of the astrometric signal-to-noise ratio α/σψ between the astrometric signature α and the single measurement erro ...
... range 0.1 ≤ MJ ≤ 5, orbiting 1-M⊙ stars with periods up to twice the mission duration, and placing the systems at increasing distances from our Sun. We parameterized our results in terms of the astrometric signal-to-noise ratio α/σψ between the astrometric signature α and the single measurement erro ...
Comets - LEAPShares
... asteroids and meteoroids—pieces of interplanetary rock and metal comets—objects containing large amounts of ice and rocky debris space debris that falls through Earth’s atmosphere the asteroid belt and the Kuiper belt, both filled with a variety of debris, including orbiting pairs of objects the imp ...
... asteroids and meteoroids—pieces of interplanetary rock and metal comets—objects containing large amounts of ice and rocky debris space debris that falls through Earth’s atmosphere the asteroid belt and the Kuiper belt, both filled with a variety of debris, including orbiting pairs of objects the imp ...
Topic: Day 1 The Day/Night Cycle and Apparent
... sun rises and sets just like we did as a group when we rotated like the earth. Use the globe to show when it is noon, sunset, midnight, and sunrise happen for where we live near Philadelphia.” Students should spin the globes counter-clockwise to show the scientific direction of the earth’s rotation. ...
... sun rises and sets just like we did as a group when we rotated like the earth. Use the globe to show when it is noon, sunset, midnight, and sunrise happen for where we live near Philadelphia.” Students should spin the globes counter-clockwise to show the scientific direction of the earth’s rotation. ...
2. Galileo Magnifico
... were in direct opposition to this idea. Moreover, Galileo’s observations clearly showed that Earth wasn’t located at the center of the Universe. Planets exhibited discs, the planet Venus showed phases (just as the Moon does), and four star-like points (now known as the Galilean moons) were obviously ...
... were in direct opposition to this idea. Moreover, Galileo’s observations clearly showed that Earth wasn’t located at the center of the Universe. Planets exhibited discs, the planet Venus showed phases (just as the Moon does), and four star-like points (now known as the Galilean moons) were obviously ...
Calculating Parallax Lab
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
... this background? This is because the center of your eyes are a few centimeters apart from each other, so each eye as a different point of view. Because stars are SO far away, their parallaxes are most conveniently measured in seconds of arc (arc seconds). The angular size of your thumb held at arm’s ...
Shining Light on the Stars: The Hertzsprung-Russell
... Imagine that we are now floating in space above the Earth. The stars visible from Earth’s surface can still be seen from this vantage point. ...
... Imagine that we are now floating in space above the Earth. The stars visible from Earth’s surface can still be seen from this vantage point. ...
NATS 1311-From the Cosmos to Earth
... The idea that scientists should prefer the simpler of two models that agree equally well with observations - the second hallmark - after medieval scholar William of Occam (1285 - 1349). For instance, original model of Copernicus (Sun-centered) did not match the data noticeably better than Ptolemy's ...
... The idea that scientists should prefer the simpler of two models that agree equally well with observations - the second hallmark - after medieval scholar William of Occam (1285 - 1349). For instance, original model of Copernicus (Sun-centered) did not match the data noticeably better than Ptolemy's ...
Planets of Our, and Other, Solar Systems
... • The formation sequence we laid out fits well known physics and accounts for all of these features. It’s the odds-on favorite for “The Truth”, albeit no doubt there’s details which are yet to be fully worked out • Many of these details will no doubt become clearer as we discover new planets around ...
... • The formation sequence we laid out fits well known physics and accounts for all of these features. It’s the odds-on favorite for “The Truth”, albeit no doubt there’s details which are yet to be fully worked out • Many of these details will no doubt become clearer as we discover new planets around ...
Coordinate Systems - AST 114, Astronomy Lab II for Spring 2017!
... Because RA and Dec are coordinates fixed to the sky, stars and other distant objects will keep their location in right ascension and declination throughout the year (just like we stay at the same latitude and longitude here in Tempe). Take, for example, the star Betelgeuse, in the Orion constellatio ...
... Because RA and Dec are coordinates fixed to the sky, stars and other distant objects will keep their location in right ascension and declination throughout the year (just like we stay at the same latitude and longitude here in Tempe). Take, for example, the star Betelgeuse, in the Orion constellatio ...
Introduction to Astronomy
... ancient writings of a thousand years before found their way back into books of Western Europe. (Some) of what was relearned turned out to be false. But other knowledge, including advanced math and the rational thought, were used as the skills needed to allow modern western culture to expand The Cath ...
... ancient writings of a thousand years before found their way back into books of Western Europe. (Some) of what was relearned turned out to be false. But other knowledge, including advanced math and the rational thought, were used as the skills needed to allow modern western culture to expand The Cath ...
Chapter3.2 - Department of Physics & Astronomy
... • Tycho thought he had measured stellar distances, so lack of parallax seemed to rule out an orbiting Earth. • Galileo showed stars must be much farther than Tycho thought — in part by using his telescope to see the Milky Way is countless individual stars. If stars were much farther away, then lac ...
... • Tycho thought he had measured stellar distances, so lack of parallax seemed to rule out an orbiting Earth. • Galileo showed stars must be much farther than Tycho thought — in part by using his telescope to see the Milky Way is countless individual stars. If stars were much farther away, then lac ...
The Sun`s magnetic field
... The earliest known depiction of sunspots dates from December 1128, in the form of a drawing by the English monk John of Worcester in his Chronicles. The accompanying notes describe that …on Saturday, 8 December, there appeared from the morning right up to the evening two black spheres against the Su ...
... The earliest known depiction of sunspots dates from December 1128, in the form of a drawing by the English monk John of Worcester in his Chronicles. The accompanying notes describe that …on Saturday, 8 December, there appeared from the morning right up to the evening two black spheres against the Su ...
ISS Sighting Opportunities
... bottom of the Great Water, the enormous expanse of autumn sky filled with dim water-themed constellations. Saturday, November 2 A partial eclipse of the Sun will be in progress as the Sun rises on Sunday morning for the Eastern Seaboard of North America and points inland. The partial eclipse happens ...
... bottom of the Great Water, the enormous expanse of autumn sky filled with dim water-themed constellations. Saturday, November 2 A partial eclipse of the Sun will be in progress as the Sun rises on Sunday morning for the Eastern Seaboard of North America and points inland. The partial eclipse happens ...
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.