Lecture 2 - University of Chicago, Astronomy
... in the telescope, but stars did not; observed all four phases of the Venus (gibbous phases could not be explained by the Ptolemaic model); discovered four largest satellites of Jupiter; they are still called Galilean moons; this was another blow to the dying Ptolemaic system. Galileo resolved the Mi ...
... in the telescope, but stars did not; observed all four phases of the Venus (gibbous phases could not be explained by the Ptolemaic model); discovered four largest satellites of Jupiter; they are still called Galilean moons; this was another blow to the dying Ptolemaic system. Galileo resolved the Mi ...
How do we know how the Solar System is
... Most elaborate geocentric model was developed by the astronomer Ptolemy Ptolemy made lots of small adjustments to the basic picture to try to better match the observed position of planets Always preserved Earth at center (geocentric) and circular orbits, but had some orbits off center, some orbit ...
... Most elaborate geocentric model was developed by the astronomer Ptolemy Ptolemy made lots of small adjustments to the basic picture to try to better match the observed position of planets Always preserved Earth at center (geocentric) and circular orbits, but had some orbits off center, some orbit ...
Document
... caused by the pull of a small unseen planet. b. We have seen the motion of the planet caused by the wobble of the star. c. We have seen the changing position of the star caused by the pull of the small unseen planet. d. We have seen the changing velocity of the planet caused by the motion of the sta ...
... caused by the pull of a small unseen planet. b. We have seen the motion of the planet caused by the wobble of the star. c. We have seen the changing position of the star caused by the pull of the small unseen planet. d. We have seen the changing velocity of the planet caused by the motion of the sta ...
GEARS Workshop Monday - Georgia Southern University
... In 2020, a spacecraft lands on Europa and melts its way through the ice into the Europan ocean. It finds numerous strange, living microbes, along with a few larger organisms that feed on the microbes. a. b. c. d. ...
... In 2020, a spacecraft lands on Europa and melts its way through the ice into the Europan ocean. It finds numerous strange, living microbes, along with a few larger organisms that feed on the microbes. a. b. c. d. ...
on his death bed. Retrograde Motion The heliocentric
... first scientist to write directly to the people. It was common practice for scholars to write in Latin but Galileo also wrote popular books in ...
... first scientist to write directly to the people. It was common practice for scholars to write in Latin but Galileo also wrote popular books in ...
The Daily Telegraph – London… 14th February 2008… New Solar
... Solar system because the two gas giant planets are similar sizes relative to their star as Jupiter and Saturn are to our sun. The smaller planet is roughly twice as far from its star as the larger one, just as Saturn is about twice as far from the sun as Jupiter. Planetary scientists who discovered ...
... Solar system because the two gas giant planets are similar sizes relative to their star as Jupiter and Saturn are to our sun. The smaller planet is roughly twice as far from its star as the larger one, just as Saturn is about twice as far from the sun as Jupiter. Planetary scientists who discovered ...
Introduction
... 1st Law (1609): Planets revolve around the Sun in elliptical orbits with the Sun at one focus ...
... 1st Law (1609): Planets revolve around the Sun in elliptical orbits with the Sun at one focus ...
presentation format
... Most elaborate geocentric model was developed by the astronomer Ptolemy Ptolemy made lots of small adjustments to the basic picture to try to better match the observed position of planets Always preserved Earth at center (geocentric) and circular orbits, but had some orbits off center, some orbit ...
... Most elaborate geocentric model was developed by the astronomer Ptolemy Ptolemy made lots of small adjustments to the basic picture to try to better match the observed position of planets Always preserved Earth at center (geocentric) and circular orbits, but had some orbits off center, some orbit ...
Biosignatures of Kepler 62 e And Kepler f
... The search for life is a question that has had mankind begging for an aswer. It had Galileo see seas on the moon, is the main driving force in Martian Exploration, and great desire to go even further and search for life in moons like Europa and Titan, what at one point was only found in science fict ...
... The search for life is a question that has had mankind begging for an aswer. It had Galileo see seas on the moon, is the main driving force in Martian Exploration, and great desire to go even further and search for life in moons like Europa and Titan, what at one point was only found in science fict ...
Jim_lecture_Chapter
... • Habitable zones around solar-type stars appear to be relatively wide Kasting et al., Icarus (1993) ...
... • Habitable zones around solar-type stars appear to be relatively wide Kasting et al., Icarus (1993) ...
etlife_exoplanets - University of Glasgow
... We can use spectral lines, like fingerprints, to identify the chemicals that stars and planets are made of. ...
... We can use spectral lines, like fingerprints, to identify the chemicals that stars and planets are made of. ...
Astronomical Ideas Fall 2012 HW 2 solutions 1. a. Compare the
... Sun than the Earth is) or a result of observational bias. We are biased towards finding planets nearby their parent stars in transit searches, because planets with smaller orbital radii have shorter periods. We need to observe multiple transits to confirm the presence of a planet via this technique. ...
... Sun than the Earth is) or a result of observational bias. We are biased towards finding planets nearby their parent stars in transit searches, because planets with smaller orbital radii have shorter periods. We need to observe multiple transits to confirm the presence of a planet via this technique. ...
Today`s Powerpoint
... Make further observations to test the theory Refine the theory, or if it no longer works, make a new one ...
... Make further observations to test the theory Refine the theory, or if it no longer works, make a new one ...
Angular Momentum
... Kepler’s Third Law Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
... Kepler’s Third Law Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
Copernicus, Kepler, Galileo, Newton
... • Accept, reject, or modify observations to fit the assumption, • Then use the results as proof of the assumption. • People who engage in circular reasoning almost never scrap or modify their initial hypothesis • The whole point of circular reasoning is to justify the initial hypothesis at all costs ...
... • Accept, reject, or modify observations to fit the assumption, • Then use the results as proof of the assumption. • People who engage in circular reasoning almost never scrap or modify their initial hypothesis • The whole point of circular reasoning is to justify the initial hypothesis at all costs ...
ExoplanetWorksheet
... mass’ do you get better detail when you plot with linear or logarithmic data points? __________________________________ *All of the rocky planets in our Solar System are at least 3 times more dense than Jupiter. Does it look like we’ve found very many or very few rocky exoplanets? __________________ ...
... mass’ do you get better detail when you plot with linear or logarithmic data points? __________________________________ *All of the rocky planets in our Solar System are at least 3 times more dense than Jupiter. Does it look like we’ve found very many or very few rocky exoplanets? __________________ ...
Extrasolar planets
... A planet had already been discovered around the star HD209458 by the radial velocity method. In 1999, a transit was observed at exactly the time predicted. Radial velocities of HD209458 Transit of HD209458 ...
... A planet had already been discovered around the star HD209458 by the radial velocity method. In 1999, a transit was observed at exactly the time predicted. Radial velocities of HD209458 Transit of HD209458 ...
Models of the solar system
... •Since the planets move on ellipses (Kepler's 1st Law), they are continually accelerating, as we have noted above. This implies a force acting continuously on the planets. •Because the planet-Sun line sweeps out equal areas in equal times (Kepler's 2nd Law), it is possible to show that the force mus ...
... •Since the planets move on ellipses (Kepler's 1st Law), they are continually accelerating, as we have noted above. This implies a force acting continuously on the planets. •Because the planet-Sun line sweeps out equal areas in equal times (Kepler's 2nd Law), it is possible to show that the force mus ...
Chapter 3 - Nicholls State University
... Moon is 1.2% of that of the Earth. Which statement is incorrect? A. The force on the Moon is much larger than that on Earth. B. The forces are equal size, even though the masses are different. C. The Moon has a larger acceleration ...
... Moon is 1.2% of that of the Earth. Which statement is incorrect? A. The force on the Moon is much larger than that on Earth. B. The forces are equal size, even though the masses are different. C. The Moon has a larger acceleration ...
Gravity Kepler`s Laws - historical remarks - UW
... Kepler’s Third Law Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
... Kepler’s Third Law Kepler had access to very good data from the astronomer Tycho Brahe in Prague. See table for today’s data. After many years of work Kepler found an intriguing correlation between the orbital periods and the length of the semimajor axis of orbits. ...
Today`s Powerpoint - Physics and Astronomy
... Aristotle: Sun, Moon, Planets and Stars rotate around fixed Earth. Aristarchus: Used geometry of eclipses to show Sun bigger than Earth (and Moon smaller), so guessed that Earth orbits the Sun. Also guessed Earth spins on its axis once a day => apparent motion of stars. Aristotle: But there's no win ...
... Aristotle: Sun, Moon, Planets and Stars rotate around fixed Earth. Aristarchus: Used geometry of eclipses to show Sun bigger than Earth (and Moon smaller), so guessed that Earth orbits the Sun. Also guessed Earth spins on its axis once a day => apparent motion of stars. Aristotle: But there's no win ...
Kepler (spacecraft)
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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.