Astronomy - Fort Thomas Independent Schools
... Aristarchus: He was the first person noted to promote the heliocentric model of the universe. Aristotle: Major proponent of the geocentric model, thought the stars were fixed in a crystal sphere. Ptolemy: Wrote the Almagast, where he set forth the geocentric model in print. He used deferents and epi ...
... Aristarchus: He was the first person noted to promote the heliocentric model of the universe. Aristotle: Major proponent of the geocentric model, thought the stars were fixed in a crystal sphere. Ptolemy: Wrote the Almagast, where he set forth the geocentric model in print. He used deferents and epi ...
Are there Earth-like planets around other stars?
... stars, and so forth. But this does not necessarily mean that even Earth-like planets are rare in the Universe. We just need to look for them with other methods. The main difficulty in detecting Earth-like exoplanets around distant stars is that Earth is small (so its light is obscured by the light o ...
... stars, and so forth. But this does not necessarily mean that even Earth-like planets are rare in the Universe. We just need to look for them with other methods. The main difficulty in detecting Earth-like exoplanets around distant stars is that Earth is small (so its light is obscured by the light o ...
4 Kepler`s Laws - NMSU Astronomy
... the Sun (“a”), the more slowly it will move. The more slowly it moves, the longer it takes to go around the Sun (“P”). The relation is P2 ∝ a3 , where P is the orbital period in years, while a is the average distance of the planet from the Sun, and the mathematical symbol for proportional is represe ...
... the Sun (“a”), the more slowly it will move. The more slowly it moves, the longer it takes to go around the Sun (“P”). The relation is P2 ∝ a3 , where P is the orbital period in years, while a is the average distance of the planet from the Sun, and the mathematical symbol for proportional is represe ...
File - Mr. Gray`s Class
... takes the earth to get back to the same location it was at previously. – We don’t use this as a day because the earth not only rotates, but it moves a little bit around the sun in its revolution during each rotation. This is where we get the 24 hour day from. ...
... takes the earth to get back to the same location it was at previously. – We don’t use this as a day because the earth not only rotates, but it moves a little bit around the sun in its revolution during each rotation. This is where we get the 24 hour day from. ...
We see apparent retrograde motion when we pass by a
... planets using a “state-of-the-art” observatory • Uraniborg – “The Castle of Urania” ...
... planets using a “state-of-the-art” observatory • Uraniborg – “The Castle of Urania” ...
If Earth had no tilt, what else would happen?
... observers meridian, it is a direct indication of whether a celestial object of known right ascension is observable at that instant. •Our clocks are based upon Solar time and we measure stars rising about 4 minutes earlier each day. •Why does this happen? The short version…because of Earth’s motion a ...
... observers meridian, it is a direct indication of whether a celestial object of known right ascension is observable at that instant. •Our clocks are based upon Solar time and we measure stars rising about 4 minutes earlier each day. •Why does this happen? The short version…because of Earth’s motion a ...
class 4, F10 (ch. 2c and 3)
... 3 The ratio of the cube of a planet’s average distance from the Sun to the square of its orbital period is the same for each planet. ...
... 3 The ratio of the cube of a planet’s average distance from the Sun to the square of its orbital period is the same for each planet. ...
Lecture9_2014_v2 - UCO/Lick Observatory
... of extra-solar planets • Much higher eccentricity in most of their orbits • Much higher fraction of planets very close to their parent stars. • Many of these have masses comparable to Jupiter’s. • Many planets are “super-Jupiters” (up to 10 times more massive than Jupiter) ...
... of extra-solar planets • Much higher eccentricity in most of their orbits • Much higher fraction of planets very close to their parent stars. • Many of these have masses comparable to Jupiter’s. • Many planets are “super-Jupiters” (up to 10 times more massive than Jupiter) ...
Age Aspects of Habitability
... A habitable zone of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host life. But is the age of the planet important for its habitability? If we define h ...
... A habitable zone of a star is defined as a range of orbits within which a rocky planet can support liquid water on its surface. The most intriguing question driving the search for habitable planets is whether they host life. But is the age of the planet important for its habitability? If we define h ...
200 THE COPERNICAN REVOLUTION the opposition to
... another and a larger role in the Copernican Revolution as the author of an astronomical system that rapidly replaced the Ptolemaic system as the rallying point for those proficient astronomers who, like Brahe himself, could not accept the earth's motion. Most of Brahe's reasons for rejecting Coperni ...
... another and a larger role in the Copernican Revolution as the author of an astronomical system that rapidly replaced the Ptolemaic system as the rallying point for those proficient astronomers who, like Brahe himself, could not accept the earth's motion. Most of Brahe's reasons for rejecting Coperni ...
Chapter 15
... discovered so far, with about 2700 more candidates waiting to be confirmed: • Most are in the “cold Jupiter” or “cold Neptune” category due to size and distance from parent star • Orbits are generally somewhat smaller than the orbit of Jupiter ...
... discovered so far, with about 2700 more candidates waiting to be confirmed: • Most are in the “cold Jupiter” or “cold Neptune” category due to size and distance from parent star • Orbits are generally somewhat smaller than the orbit of Jupiter ...
Giant planets in debris disks around nearby stars
... we have gained a wealth of information to understand the formation and structure of planetary systems, including our own. With more than 1500 confirmed exoplanet discoveries by now, we have not only learned that the diversity of planetary systems is much larger than what one could guess when extrapo ...
... we have gained a wealth of information to understand the formation and structure of planetary systems, including our own. With more than 1500 confirmed exoplanet discoveries by now, we have not only learned that the diversity of planetary systems is much larger than what one could guess when extrapo ...
Testing
... Earth-like planets that cross in front of their stars (Kepler to launch in 2008) – Astrometric missions will be capable of measuring the “wobble” of a star caused by an orbiting Earth-like planet – Missions for direct detection of an Earth-like planet will need to use special techniques (like ...
... Earth-like planets that cross in front of their stars (Kepler to launch in 2008) – Astrometric missions will be capable of measuring the “wobble” of a star caused by an orbiting Earth-like planet – Missions for direct detection of an Earth-like planet will need to use special techniques (like ...
maymester2
... • Danish astronomer • Studied a bright new star in sky that faded over time. • In 1577, studied a comet – in trying to determine its distance from Earth by observing from different locations, noted that there was no change in apparent position – proposed comet must be farther from Earth than the Moo ...
... • Danish astronomer • Studied a bright new star in sky that faded over time. • In 1577, studied a comet – in trying to determine its distance from Earth by observing from different locations, noted that there was no change in apparent position – proposed comet must be farther from Earth than the Moo ...
slides - Walter Burke Institute for Theoretical Physics
... Lars Bildsten Kavli Institute for Theoretical ...
... Lars Bildsten Kavli Institute for Theoretical ...
Rhodri Evans - LA Flood Project
... This book traces the history of our understanding of the Universe, from the early ideas of the Greeks through to the latest findings announced in the last few weeks which probe the conditions in the very earliest moments of our Universe’s existence. After laying down the evidence that our Earth is n ...
... This book traces the history of our understanding of the Universe, from the early ideas of the Greeks through to the latest findings announced in the last few weeks which probe the conditions in the very earliest moments of our Universe’s existence. After laying down the evidence that our Earth is n ...
kepler`s laws and newton`s discovery of universal
... Here’s how to construct an ellipse. Lay a sheet of paper on a flat surface. Pick any two points on the paper, and drive a thumbtack through each point. Tie the ends of a length of thread to the tacks, loop the thread around the tip of a pencil, and stretch the thread taut (see Figure B8.1a). Now mov ...
... Here’s how to construct an ellipse. Lay a sheet of paper on a flat surface. Pick any two points on the paper, and drive a thumbtack through each point. Tie the ends of a length of thread to the tacks, loop the thread around the tip of a pencil, and stretch the thread taut (see Figure B8.1a). Now mov ...
History of astronomy
... Why were there no telescopes prior to 1600? Consider the following passage, from the Opus Majus of Roger Bacon (1267): “Greater things than these may be performed by refracted vision. For it is is easy to understand by the canons above mentioned that the greatest things may appear exceeding small, ...
... Why were there no telescopes prior to 1600? Consider the following passage, from the Opus Majus of Roger Bacon (1267): “Greater things than these may be performed by refracted vision. For it is is easy to understand by the canons above mentioned that the greatest things may appear exceeding small, ...
Phys 214. Planets and Life
... The orbits of most extrasolar planets detected to date are highly elliptical. Most of the extrasolar planetary systems discovered to date are very different than our own solar system having Jovian-sized planets close to their parent stars. ...
... The orbits of most extrasolar planets detected to date are highly elliptical. Most of the extrasolar planetary systems discovered to date are very different than our own solar system having Jovian-sized planets close to their parent stars. ...
astep - Institut d`Astrophysique de Paris
... - Will discover and characterize most of the short period giant planets in its fields, thus largely increase our knowledge of exoplanets - Will provide statistical information on the presence of short periods smaller planets - Could provide the first characterization of super-earth planets ...
... - Will discover and characterize most of the short period giant planets in its fields, thus largely increase our knowledge of exoplanets - Will provide statistical information on the presence of short periods smaller planets - Could provide the first characterization of super-earth planets ...
We Do Not Forget Johannes Kepler Introduction
... Archimedes, used a resolution into indivisibles. This method was later developed by Bonaventura Cavalieri (c. 1598 - 1647) and is part of the ancestry of the innitesimal calculus. Kepler's main task as Imperial Mathematician was to write astronomical tables, based on Tycho's observations, but wha ...
... Archimedes, used a resolution into indivisibles. This method was later developed by Bonaventura Cavalieri (c. 1598 - 1647) and is part of the ancestry of the innitesimal calculus. Kepler's main task as Imperial Mathematician was to write astronomical tables, based on Tycho's observations, but wha ...
Lecture 4
... observing a supernova and showing it was “far away” • Danish king provided funding and an island where Brahe set up an observatory – no telescopes just (essentially) sextants - that is long sticks to measure angles which could be flipped to measure both E-W and N-S angle at same time ...
... observing a supernova and showing it was “far away” • Danish king provided funding and an island where Brahe set up an observatory – no telescopes just (essentially) sextants - that is long sticks to measure angles which could be flipped to measure both E-W and N-S angle at same time ...
Your guide to see five planets after sunset
... converge on the same side of the sun, as shown in cross paths with Venus on August 27 and 28. the video below. So for the next month, when the sun goes down, You can also check it out yourself using the Tour look to the skies to collect the full set of visible the Solar System interactive by NOVA. ...
... converge on the same side of the sun, as shown in cross paths with Venus on August 27 and 28. the video below. So for the next month, when the sun goes down, You can also check it out yourself using the Tour look to the skies to collect the full set of visible the Solar System interactive by NOVA. ...
Planets of Our, and Other, Solar Systems
... • Angular momentum came from gravitational pull from nearby other stars in our cluster, as proto-solar nebula collapsed • This angular momentum only allowed collapse to a certain size disk, and friction caused material to settle into a disk • Gravity caused proto-planets to form, coalesce into plane ...
... • Angular momentum came from gravitational pull from nearby other stars in our cluster, as proto-solar nebula collapsed • This angular momentum only allowed collapse to a certain size disk, and friction caused material to settle into a disk • Gravity caused proto-planets to form, coalesce into plane ...
Kepler (spacecraft)
Kepler is a space observatory launched by NASA to discover Earth-like planets orbiting other stars. The spacecraft, named after the German Renaissance astronomer Johannes Kepler, was launched on March 7, 2009.Designed to survey a portion of our region of the Milky Way to discover dozens of Earth-size extrasolar planets in or near the habitable zone and estimate how many of the billions of stars in the Milky Way have such planets, Kepler's sole instrument is a photometer that continually monitors the brightness of over 145,000 main sequence stars in a fixed field of view. This data is transmitted to Earth, then analyzed to detect periodic dimming caused by extrasolar planets that cross in front of their host star.Kepler is part of NASA's Discovery Program of relatively low-cost, focused primary science missions. The telescope's construction and initial operation were managed by NASA's Jet Propulsion Laboratory, with Ball Aerospace responsible for developing the Kepler flight system. The Ames Research Center is responsible for the ground system development, mission operations since December 2009, and scientific data analysis. The initial planned lifetime was 3.5 years, but greater-than-expected noise in the data, from both the stars and the spacecraft, meant additional time was needed to fulfill all mission goals. Initially, in 2012, the mission was expected to last until 2016, but this would only have been possible if all remaining reaction wheels used for pointing the spacecraft remained reliable. On May 11, 2013, a second of four reaction wheels failed, disabling the collection of science data and threatening the continuation of the mission.On August 15, 2013, NASA announced that they had given up trying to fix the two failed reaction wheels. This meant the current mission needed to be modified, but it did not necessarily mean the end of planet-hunting. NASA had asked the space science community to propose alternative mission plans ""potentially including an exoplanet search, using the remaining two good reaction wheels and thrusters"". On November 18, 2013, the K2 ""Second Light"" proposal was reported. This would include utilizing the disabled Kepler in a way that could detect habitable planets around smaller, dimmer red dwarfs. On May 16, 2014, NASA announced the approval of the K2 extension.As of January 2015, Kepler and its follow-up observations had found 1,013 confirmed exoplanets in about 440 stellar systems, along with a further 3,199 unconfirmed planet candidates. Four planets have been confirmed through Kepler 's K2 mission. In November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. It is estimated that 11 billion of these planets may be orbiting Sun-like stars. The nearest such planet may be 3.7 parsecs (12 ly) away, according to the scientists.On January 6, 2015, NASA announced the 1000th confirmed exoplanet discovered by the Kepler Space Telescope. Four of the newly confirmed exoplanets were found to orbit within habitable zones of their related stars: three of the four, Kepler-438b, Kepler-442b and Kepler-452b, are near-Earth-size and likely rocky; the fourth, Kepler-440b, is a super-Earth.