I. What is an Exoplanet?
... F. Orbital Phase Reflected Light Variation Short period giant planets in close orbits around their stars will undergo reflected light variations. This is because, like our Moon, they also go through phases from full to new and back again. Since telescopes cannot resolve the planet from the sta ...
... F. Orbital Phase Reflected Light Variation Short period giant planets in close orbits around their stars will undergo reflected light variations. This is because, like our Moon, they also go through phases from full to new and back again. Since telescopes cannot resolve the planet from the sta ...
Astronomy 110 Announcements:
... Galileo’s experiments showed that objects in air would stay with a moving Earth. • Aristotle thought that all objects naturally come to rest. • Galileo showed that objects will stay in motion unless a force acts to slow them down (Newton’s first law of ...
... Galileo’s experiments showed that objects in air would stay with a moving Earth. • Aristotle thought that all objects naturally come to rest. • Galileo showed that objects will stay in motion unless a force acts to slow them down (Newton’s first law of ...
Exploring other Solar Systems
... seen from near the location of a Jupiter-like planet located at a distance from this star close to that of Jupiter from our own Sun. GSMT will be able to analyze the light from this planet, determine its chemical composition and infer the mechanism by which it formed The role of GSMT While other gro ...
... seen from near the location of a Jupiter-like planet located at a distance from this star close to that of Jupiter from our own Sun. GSMT will be able to analyze the light from this planet, determine its chemical composition and infer the mechanism by which it formed The role of GSMT While other gro ...
from gas giants to super
... y efficient detecting giant planets in close-in ts. This technique requires very high spectral lution, high precision, and stable instruments. ...
... y efficient detecting giant planets in close-in ts. This technique requires very high spectral lution, high precision, and stable instruments. ...
How common are habitable planets?
... Transiting planets NASA launched the Kepler space telescope in Independently, Petigura, Howard and Marcy 2009 to look for planets that cross in front of, or focused on the 42,000 stars that are like the sun or transit, their stars, which causes a slight diminution slightly cooler and smaller, and fo ...
... Transiting planets NASA launched the Kepler space telescope in Independently, Petigura, Howard and Marcy 2009 to look for planets that cross in front of, or focused on the 42,000 stars that are like the sun or transit, their stars, which causes a slight diminution slightly cooler and smaller, and fo ...
Galileo and Newton
... The Ptolemaic (a) and Copernican (b) systems both assumed that all orbits are circular. The fundamental difference is that Copernicus placed the Sun at the center. ...
... The Ptolemaic (a) and Copernican (b) systems both assumed that all orbits are circular. The fundamental difference is that Copernicus placed the Sun at the center. ...
Historical astronomy How Johannes Kepler Johannes
... Jon Lomberg, NASA from Earth, planets have only a small chance of crossing in front of their host stars. During a transit, earthlike planets will cause the host stars’ brightnesses to dip by only 1⁄10,000. Of course, such a dip could be caused by a star spot or the star’s own brightness variation. S ...
... Jon Lomberg, NASA from Earth, planets have only a small chance of crossing in front of their host stars. During a transit, earthlike planets will cause the host stars’ brightnesses to dip by only 1⁄10,000. Of course, such a dip could be caused by a star spot or the star’s own brightness variation. S ...
Celestial Mechanics
... Celestial Mechanics The Heliocentric Model of Copernicus Sun at the center and planets (including Earth) orbiting along circles. inferior planets - planets closer to Sun than Earth - Mercury, Venus superior planets - planets farther from Sun than Earth - all other planets elongation - the angle seen ...
... Celestial Mechanics The Heliocentric Model of Copernicus Sun at the center and planets (including Earth) orbiting along circles. inferior planets - planets closer to Sun than Earth - Mercury, Venus superior planets - planets farther from Sun than Earth - all other planets elongation - the angle seen ...
Extra-Solar Planets continued
... star called Gliese 436, that lies about 33 light-years from Earth in the direction of the constellation of Leo. This Neptune-sized planet also sits 3 million miles from its star and whips around in a tight circular orbit once every 2.64 days. Besides the exoplanet's size, what makes the discovery re ...
... star called Gliese 436, that lies about 33 light-years from Earth in the direction of the constellation of Leo. This Neptune-sized planet also sits 3 million miles from its star and whips around in a tight circular orbit once every 2.64 days. Besides the exoplanet's size, what makes the discovery re ...
Explanations to selected mc
... (b) The student is not correct. The distance traveled is average speed × time. Although the time interval 3t is the longest, the average speed during this time interval may be low if the planet comes far from the Sun, so the distance traveled may not be the largest. 4. (a) 1.5 x 109 km = 1.5 x 1012 ...
... (b) The student is not correct. The distance traveled is average speed × time. Although the time interval 3t is the longest, the average speed during this time interval may be low if the planet comes far from the Sun, so the distance traveled may not be the largest. 4. (a) 1.5 x 109 km = 1.5 x 1012 ...
Lec37
... Kepler tried long and hard to find a circular orbit around the Sun that would match Brahe’s observations of Mars. Up to that time everyone from Ptolemy to Copernicus believed that celestial objects moved in circular paths of one sort or another. Though the orbit of Mars was exasperatingly close to ...
... Kepler tried long and hard to find a circular orbit around the Sun that would match Brahe’s observations of Mars. Up to that time everyone from Ptolemy to Copernicus believed that celestial objects moved in circular paths of one sort or another. Though the orbit of Mars was exasperatingly close to ...
Ancient to Modern Astronomy
... Newton also revised Kepler’s 3rd law to include the force of gravity. This allows us to find the mass of an object from the orbits of its satellites. For example, we can find the mass of Jupiter by calculating how long it takes one of its moons to go around it. (possible lab) We can even use a more ...
... Newton also revised Kepler’s 3rd law to include the force of gravity. This allows us to find the mass of an object from the orbits of its satellites. For example, we can find the mass of Jupiter by calculating how long it takes one of its moons to go around it. (possible lab) We can even use a more ...
Guided Notes 2 - Duplin County Schools
... Brahe became interested in astronomy while viewing a _______________________________________________ that had been predicted by astronomers He persuaded King Frederick II to build an _____________________________________ near Copenhagen The ___________________________________ had not yet been invent ...
... Brahe became interested in astronomy while viewing a _______________________________________________ that had been predicted by astronomers He persuaded King Frederick II to build an _____________________________________ near Copenhagen The ___________________________________ had not yet been invent ...
Building on the Work of Others
... His name was Isaac Newton. Newton showed that the same force that controls the motion of objects on Earth also controls the motion of objects in space. This force is gravity. All the planets are moving through space. Some move faster than others. Because of their motion, you would think that planets ...
... His name was Isaac Newton. Newton showed that the same force that controls the motion of objects on Earth also controls the motion of objects in space. This force is gravity. All the planets are moving through space. Some move faster than others. Because of their motion, you would think that planets ...
Methods for the detection of exoplanets
... and evolution of life. • Giordano Bruno: “There are countless suns and earths all rotating around their suns in exactly the same way as the seven planets of our system..” (1584) • First confirmed planet – 51 Pegasi on October 1995 by Mayor and Queloz (1995) ...
... and evolution of life. • Giordano Bruno: “There are countless suns and earths all rotating around their suns in exactly the same way as the seven planets of our system..” (1584) • First confirmed planet – 51 Pegasi on October 1995 by Mayor and Queloz (1995) ...
Chapter 7 Rotational Motion and the Law of Gravity
... there as well. ◦ As Earth rotates, each location on Earth passes through the two bulges each day. ...
... there as well. ◦ As Earth rotates, each location on Earth passes through the two bulges each day. ...
And let there be light!
... that the motions of the planets could be explained by placing the Sun at the center of the universe instead of Earth. In his view, Earth was simply one of many planets orbiting the Sun, and the daily motion of the stars and planets were just a reflection of Earth spinning on its axis. ...
... that the motions of the planets could be explained by placing the Sun at the center of the universe instead of Earth. In his view, Earth was simply one of many planets orbiting the Sun, and the daily motion of the stars and planets were just a reflection of Earth spinning on its axis. ...
kepler` s laws
... seventeen century, observations were made with the naked eye. Nonetheless, with great patience and ingenuity, astronomers were able to chart the motion of many stars and planets across the sky. Tycho Brahe, a Danish astronomer (1546-1601), was credited to have made very careful observations of the m ...
... seventeen century, observations were made with the naked eye. Nonetheless, with great patience and ingenuity, astronomers were able to chart the motion of many stars and planets across the sky. Tycho Brahe, a Danish astronomer (1546-1601), was credited to have made very careful observations of the m ...
Use with the big book “A Tour of the Planets” Photocopy questions
... Photocopy questions on construction paper, cut out and laminate. Pass out one question per group along with a certain color of Post It Notes. Have students place a Post It Note as the teacher reads on the appropriate page when they hear the answer to their question. Continue and discuss what the stu ...
... Photocopy questions on construction paper, cut out and laminate. Pass out one question per group along with a certain color of Post It Notes. Have students place a Post It Note as the teacher reads on the appropriate page when they hear the answer to their question. Continue and discuss what the stu ...
PTOLEMY -- TO -- COPERNICUS – TO -
... more than philosophical concepts until observational evidence supporting the heliocentric model was discovered, more than 70 years after his death. During the time that Copernicus ideas “gestated”, the Danish astronomer Tycho Brahe provided decades of detailed positional and brightness data on the p ...
... more than philosophical concepts until observational evidence supporting the heliocentric model was discovered, more than 70 years after his death. During the time that Copernicus ideas “gestated”, the Danish astronomer Tycho Brahe provided decades of detailed positional and brightness data on the p ...
Gravity
... the Sun once every 10 months. How often does the satellite pass between the Earth and the Sun? ...
... the Sun once every 10 months. How often does the satellite pass between the Earth and the Sun? ...
chapter3 - Empyrean Quest Publishers
... • Compiled the most accurate (one arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun) • Hired Kepler, who used Tycho’s observati ...
... • Compiled the most accurate (one arcminute) naked eye measurements ever made of planetary positions. • Still could not detect stellar parallax, and thus still thought Earth must be at center of solar system (but recognized that other planets go around Sun) • Hired Kepler, who used Tycho’s observati ...
25drake6s
... Simulations of inner planet formation produce a planet in the habitable zone much of the time ...
... Simulations of inner planet formation produce a planet in the habitable zone much of the time ...
Powers of ten notation
... peony seeds to a powder. This medicine should not be taken at the full moon. ...
... peony seeds to a powder. This medicine should not be taken at the full moon. ...
Observing the Solar System
... revolve around it This is known as the heliocentric system (helios is Greek for sun) This explanation wasn’t widely accepted because so many believed the Earth had to be at the center ...
... revolve around it This is known as the heliocentric system (helios is Greek for sun) This explanation wasn’t widely accepted because so many believed the Earth had to be at the center ...
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.