The Origin of the Solar System
... asteroid belts? Should all solar systems show evidence of an age of heavy bombardment? 2. If the solar nebula hypothesis is correct, then there are probably more planets in the universe than stars. Do you agree? Why or why not? ...
... asteroid belts? Should all solar systems show evidence of an age of heavy bombardment? 2. If the solar nebula hypothesis is correct, then there are probably more planets in the universe than stars. Do you agree? Why or why not? ...
MAPLE: Reflected Light from Exoplanets with a 50
... 1/100,000 of the parent star. However, all of these planetary systems are believed to be too young, being less than one hundred million years old, to host any kind of life. In mature planetary systems, i.e. greater than one billion years old, such as our Sun and most of the stars in the solar neighb ...
... 1/100,000 of the parent star. However, all of these planetary systems are believed to be too young, being less than one hundred million years old, to host any kind of life. In mature planetary systems, i.e. greater than one billion years old, such as our Sun and most of the stars in the solar neighb ...
Temperate Earth-sized planets transiting a nearby ultracool
... parameter) as derived from their individual analyses does not favour this scenario. TRAPPIST-1 is a well characterized, isolated M8.0 ± 0.5-type dwarf star11 at a distance of 12.0 ± 0.4 parsecs from Earth as measured by its trigonometric parallax12, with an ...
... parameter) as derived from their individual analyses does not favour this scenario. TRAPPIST-1 is a well characterized, isolated M8.0 ± 0.5-type dwarf star11 at a distance of 12.0 ± 0.4 parsecs from Earth as measured by its trigonometric parallax12, with an ...
the copernican revolution - University of Florida Astronomy
... uniform angular rate from the equant. •! Ptolemy never claimed his model described reality. It was a mathematical representation to predict the positions of the planets. •! The model successfully predicted the observed motions of planets and was the absolute authority until the 17th century. ...
... uniform angular rate from the equant. •! Ptolemy never claimed his model described reality. It was a mathematical representation to predict the positions of the planets. •! The model successfully predicted the observed motions of planets and was the absolute authority until the 17th century. ...
Kepler423b: a half-Jupiter mass planet transiting a very old solar
... Measuring the eclipse of transiting exoplanets – also known as planet occultation, secondary eclipse, and secondary transit – is a powerful tool for probing their atmospheres, in particular their albedos and brightness temperatures (Winn et al. 2010a). The timing and duration of the secondary eclips ...
... Measuring the eclipse of transiting exoplanets – also known as planet occultation, secondary eclipse, and secondary transit – is a powerful tool for probing their atmospheres, in particular their albedos and brightness temperatures (Winn et al. 2010a). The timing and duration of the secondary eclips ...
Large and small planets Journey through the Solar System
... Good to know. Since 24 August 2006, Pluto is no longer classified as a planet but a ...
... Good to know. Since 24 August 2006, Pluto is no longer classified as a planet but a ...
Astronomy 115: Finding New Worlds
... The course will cover three main questions: How do astronomers find planets around other stars? How do solar systems form? and How can we study these distant worlds to look for life? Until a little over a decade ago planets were known to exist around exactly one star, our sun. Since then hundreds of ...
... The course will cover three main questions: How do astronomers find planets around other stars? How do solar systems form? and How can we study these distant worlds to look for life? Until a little over a decade ago planets were known to exist around exactly one star, our sun. Since then hundreds of ...
Unit 3, Prelab Unit 3
... The eccentricity is a number between 0 and 1 that describes the flatness of the ellipse. A circle has an eccentricity of 0. As the eccentricity increases, the ellipse becomes flatter. As the eccentricity approaches one, the ellipse becomes more and more like a parabola. Obj. 14. Each of the four possi ...
... The eccentricity is a number between 0 and 1 that describes the flatness of the ellipse. A circle has an eccentricity of 0. As the eccentricity increases, the ellipse becomes flatter. As the eccentricity approaches one, the ellipse becomes more and more like a parabola. Obj. 14. Each of the four possi ...
Kepler-423b: a half-Jupiter mass planet transiting a very old solar
... lead to consistent results in terms of stellar mass and radius, but would also yield an age of 25 ± 5 Myr. Given the relatively rapid evolutionary time-scale of PMS stars, we note that the likelihood of finding Kepler-423 still contracting towards the zero-age main sequence (ZAMS) is about 600 times ...
... lead to consistent results in terms of stellar mass and radius, but would also yield an age of 25 ± 5 Myr. Given the relatively rapid evolutionary time-scale of PMS stars, we note that the likelihood of finding Kepler-423 still contracting towards the zero-age main sequence (ZAMS) is about 600 times ...
PowerPoint
... determine the mass of the black hole in the center of our galaxy using deep nearinfrared observations. Sept 10, 2003 ...
... determine the mass of the black hole in the center of our galaxy using deep nearinfrared observations. Sept 10, 2003 ...
Planetary Orbit Simulator – Student Guide
... is an attractive gravitational force between the sun and a planet. By Newton’s 3rd law it is equal in magnitude for both objects. However, because the planet is so much less massive than the sun, the resulting acceleration (from Newton’s 2nd law) is much larger. Acceleration is defined as the change ...
... is an attractive gravitational force between the sun and a planet. By Newton’s 3rd law it is equal in magnitude for both objects. However, because the planet is so much less massive than the sun, the resulting acceleration (from Newton’s 2nd law) is much larger. Acceleration is defined as the change ...
Kepler Mission Workshop Presentation
... • Kepler Mission is optimized for finding habitable planets ( 0.5 to 10 MÅ ) in the HZ ( near 1 AU ) of solar-like stars • Continuously and simultaneously monitor 100,000 main-sequence stars • Use a one-meter Schmidt telescope: FOV >100 deg2 with an array of 42 CCD • Photometric precision: Noise < 2 ...
... • Kepler Mission is optimized for finding habitable planets ( 0.5 to 10 MÅ ) in the HZ ( near 1 AU ) of solar-like stars • Continuously and simultaneously monitor 100,000 main-sequence stars • Use a one-meter Schmidt telescope: FOV >100 deg2 with an array of 42 CCD • Photometric precision: Noise < 2 ...
ph507lecnote07
... Cepheids show an important connection between period and luminosity: the pulsation period of a Cepheid variable is directly related to its median luminosity. This relationship was first discovered from a study of the variables in the Magellanic Clouds, two small nearby companion galaxies to our Gala ...
... Cepheids show an important connection between period and luminosity: the pulsation period of a Cepheid variable is directly related to its median luminosity. This relationship was first discovered from a study of the variables in the Magellanic Clouds, two small nearby companion galaxies to our Gala ...
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, ...
Asteroids powerpoint - hrsbstaff.ednet.ns.ca
... • (a) orbits the Sun inside the orbit of Jupiter • (b) does not have sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium shape (it is not round shaped), • (c) has not cleared the neighborhood around its orbit, and • (d) is not a satellite. ...
... • (a) orbits the Sun inside the orbit of Jupiter • (b) does not have sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium shape (it is not round shaped), • (c) has not cleared the neighborhood around its orbit, and • (d) is not a satellite. ...
Pathway Toward a Mid-Infrared Interferometer for the Direct
... – We start with the following scientific requirements : – Detect and characterize at least 10 super-Earths near the habitable zone HZ at ...
... – We start with the following scientific requirements : – Detect and characterize at least 10 super-Earths near the habitable zone HZ at ...
arXiv:1404.0641v2 [astro
... The most intriguing question driving all these studies is whether planets within habitable zones host extraterrestrial life. It is implicitly assumed that a planet in the habitable zone bears biota. However along with the two usual indicators of habitability, an oxygen atmosphere and liquid water on ...
... The most intriguing question driving all these studies is whether planets within habitable zones host extraterrestrial life. It is implicitly assumed that a planet in the habitable zone bears biota. However along with the two usual indicators of habitability, an oxygen atmosphere and liquid water on ...
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 ...
Powerpoint - BU Imaging Science
... Goals for Learning • How do planets form? – Other planetary systems generally support the formation ideas of the nebular hypothesis – But inward migration of planets and orbital resonances seem very important in many planetary systems – We are still learning how planets form ...
... Goals for Learning • How do planets form? – Other planetary systems generally support the formation ideas of the nebular hypothesis – But inward migration of planets and orbital resonances seem very important in many planetary systems – We are still learning how planets form ...
The Origin of the Solar System
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
Chapter 2 History
... two thousand years earlier by Aristarchus. As before, the proposal failed to generate meaningful interest outside of a small circle of initiates. So little in fact that Copernicus postponed publication of his ideas literally to his dying day and, not to give offence, he dedicated his work to the pope ...
... two thousand years earlier by Aristarchus. As before, the proposal failed to generate meaningful interest outside of a small circle of initiates. So little in fact that Copernicus postponed publication of his ideas literally to his dying day and, not to give offence, he dedicated his work to the pope ...
slides - quantware mips center
... Indirect methods: astrometry, Doppler spectroscopy (measurement of periodic variations of radial velocity of a star), measurement of variations in time of the radio signals from pulsars, observations of microlensing events, observations of planetary transits (passages of planets across stellar disks ...
... Indirect methods: astrometry, Doppler spectroscopy (measurement of periodic variations of radial velocity of a star), measurement of variations in time of the radio signals from pulsars, observations of microlensing events, observations of planetary transits (passages of planets across stellar disks ...
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.