Extra-Solar Planets
... the number of stars in the Milky Way the fraction of stars that have “habitable planets” the number of habitable planets per system the fraction of habitable planets where life evolves the fraction of life-planets that evolve intelligence the fraction of civilizations that communicate the fraction o ...
... the number of stars in the Milky Way the fraction of stars that have “habitable planets” the number of habitable planets per system the fraction of habitable planets where life evolves the fraction of life-planets that evolve intelligence the fraction of civilizations that communicate the fraction o ...
Lecture 1
... summary of the state of theory prior to the discovery of extrasolar planets Links to these on the course webpage ...
... summary of the state of theory prior to the discovery of extrasolar planets Links to these on the course webpage ...
Adventurer Pathfinder
... invented the telescope in 1608, and the Italian astronomer Galileo made the telescope famous. Galileo was the first person to use a telescope to explore the heavens. With the telescope, Galileo discovered that Jupiter had four moons. He also spent time observing our moon, star patterns, and sunspots ...
... invented the telescope in 1608, and the Italian astronomer Galileo made the telescope famous. Galileo was the first person to use a telescope to explore the heavens. With the telescope, Galileo discovered that Jupiter had four moons. He also spent time observing our moon, star patterns, and sunspots ...
Rocky Planets Gas Giants
... That's because comets probably formed at the same time as the solar system, so the material at the center has probably remained unchanged for just as long. The surface material, on the other hand, is changed by the Sun's radiation. For the new study, the Johns Hopkins team observed the breakup of a ...
... That's because comets probably formed at the same time as the solar system, so the material at the center has probably remained unchanged for just as long. The surface material, on the other hand, is changed by the Sun's radiation. For the new study, the Johns Hopkins team observed the breakup of a ...
January 2013 Night Sky - Explore More - At
... Well, this is mostly true. Objects in the sky seem to twinkle because we’re seeing them though the Earth’s atmosphere. All those layers of air are moving, which distorts their light and gives the twinkling effect. The distant stars are very large but are so far away that to us they look like pin-pri ...
... Well, this is mostly true. Objects in the sky seem to twinkle because we’re seeing them though the Earth’s atmosphere. All those layers of air are moving, which distorts their light and gives the twinkling effect. The distant stars are very large but are so far away that to us they look like pin-pri ...
Asteroids powerpoint - hrsbstaff.ednet.ns.ca
... Show phases like the Moon’s when viewed from Earth ...
... Show phases like the Moon’s when viewed from Earth ...
Astronomy and the Universe - Department of Physics and Astronomy
... – A set of related hypotheses can be pieced together into a self consistent description of natural observations ...
... – A set of related hypotheses can be pieced together into a self consistent description of natural observations ...
Summary of the Presentation
... throughout their orbits (a reasonable requirement for habitability) can be estimated by using the star luminosity and orbit of each exoplanet to estimate equatorial exoEarth temperature. This was done for exoplanets orbiting main sequence stars only. Only 6 of 126 exoplanets examined would have had ...
... throughout their orbits (a reasonable requirement for habitability) can be estimated by using the star luminosity and orbit of each exoplanet to estimate equatorial exoEarth temperature. This was done for exoplanets orbiting main sequence stars only. Only 6 of 126 exoplanets examined would have had ...
The Solar System (Ch. 6 in text) Consists of the sun (a typical star
... Comets: Iceballs, most in highly eccentric orbits which extend far beyond Pluto. Spend most of their time far from sun (in the “Oort cloud”; also the “Kuiper belt” comets outside of Neptune’s orbit). Comets and asteroids are “debris”, but very important because they represent the solar system when i ...
... Comets: Iceballs, most in highly eccentric orbits which extend far beyond Pluto. Spend most of their time far from sun (in the “Oort cloud”; also the “Kuiper belt” comets outside of Neptune’s orbit). Comets and asteroids are “debris”, but very important because they represent the solar system when i ...
Neptune discovery in physics class: activities and simulations
... undergraduate, 26 years old, who seems to have taken on a personal quest to search for an explanation for the apparent misbehavior of Uranus. ...
... undergraduate, 26 years old, who seems to have taken on a personal quest to search for an explanation for the apparent misbehavior of Uranus. ...
Feb 2016 - Sudbury Astronomy Club
... “very solid argument” and that he is “quite convinced by the existence of a distant planet.” Championing a new ninth planet is an ironic role for Brown; he is better known as a planet slayer. His 2005 discovery of Eris, a remote icy world nearly the same size as Pluto, revealed that what was seen as ...
... “very solid argument” and that he is “quite convinced by the existence of a distant planet.” Championing a new ninth planet is an ironic role for Brown; he is better known as a planet slayer. His 2005 discovery of Eris, a remote icy world nearly the same size as Pluto, revealed that what was seen as ...
PDF version (two pages, including the full text)
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
IOSR Journal of Applied Physics (IOSR-JAP)
... star gives them the rotational axis angle. But there are some other planets that have only one star. Their rotational angle is towards the star. It also means our earth is not moving around the sun not for only the sun’s gravity but also for another star’s gravity. ...
... star gives them the rotational axis angle. But there are some other planets that have only one star. Their rotational angle is towards the star. It also means our earth is not moving around the sun not for only the sun’s gravity but also for another star’s gravity. ...
The Family of Stars
... • Hard to see faint planet right next to very bright star • Two main indirect techniques available (Like a binary star system but where 2nd “star” has extremely low mass) – Watch for Doppler “wobble” in position/spectrum of star – Watch for “transit” of planet which slightly dims light from star ...
... • Hard to see faint planet right next to very bright star • Two main indirect techniques available (Like a binary star system but where 2nd “star” has extremely low mass) – Watch for Doppler “wobble” in position/spectrum of star – Watch for “transit” of planet which slightly dims light from star ...
ppt
... We need to have a clear definition of what a planet is. We need to consider low-mass stars and brown dwarfs (failed stars) (1) Stars: we define a star as an object massive enough to burn H in its core. This requires a mass > 0.08 solar masses (2) Brown Dwarfs: These are objects which formed similar ...
... We need to have a clear definition of what a planet is. We need to consider low-mass stars and brown dwarfs (failed stars) (1) Stars: we define a star as an object massive enough to burn H in its core. This requires a mass > 0.08 solar masses (2) Brown Dwarfs: These are objects which formed similar ...
Origin of the Solar System – Notes Rings encircle Jupiter, Saturn
... The planets orbit the Sun in roughly circular orbits. But many asteroids and comets are in more elongated orbits. Such an elongated orbit can put these small objects on a collision course with a planet or satellite. If the object collides with a Jovian planet, it is swallowed up by the planet’s thic ...
... The planets orbit the Sun in roughly circular orbits. But many asteroids and comets are in more elongated orbits. Such an elongated orbit can put these small objects on a collision course with a planet or satellite. If the object collides with a Jovian planet, it is swallowed up by the planet’s thic ...
Document
... • Theory – a body of related hypotheses can be pieced together into a self consistent description of nature ...
... • Theory – a body of related hypotheses can be pieced together into a self consistent description of nature ...
Star Track 2 - The Search for a Supermassive Black... Early radio astronomers detected an immensely
... powerful source of radio waves towards the center of the Galaxy in the constellation Sagittarius; this mysterious object was designated SgrA*. More recently, infrared astronomers using adaptive optics have imaged individual stars near this object and tracked their motion with time. The observed orbi ...
... powerful source of radio waves towards the center of the Galaxy in the constellation Sagittarius; this mysterious object was designated SgrA*. More recently, infrared astronomers using adaptive optics have imaged individual stars near this object and tracked their motion with time. The observed orbi ...
Jupiter, the fifth planet from the sun and the largest planet in our
... Like other members of the Kuiper Belt, it is composed of rock and ice and is relatively small. It has a highly eccentric and inclined orbit around the Sun which makes it periodically come closer to the Sun than Neptune. Pluto and its largest moon, Charon, are sometimes classified as a binary system. ...
... Like other members of the Kuiper Belt, it is composed of rock and ice and is relatively small. It has a highly eccentric and inclined orbit around the Sun which makes it periodically come closer to the Sun than Neptune. Pluto and its largest moon, Charon, are sometimes classified as a binary system. ...
Extra-Solar Planets
... the habitable zone, so it could have liquid water on its surface. The next step is to search for evidence of life on this planet (e.g., oxygen in its atmosphere), but the necessary technology probably won’t be available for another 20 years. ...
... the habitable zone, so it could have liquid water on its surface. The next step is to search for evidence of life on this planet (e.g., oxygen in its atmosphere), but the necessary technology probably won’t be available for another 20 years. ...
Astronomy - cloudfront.net
... A. The planets nearest to the star have a lower density than the planets farther out. B. Several planets show large tilts of their rotation axis compared to the plane of their orbits. C. All the gas giants have moons. D. Several planets have dense atmospheres ...
... A. The planets nearest to the star have a lower density than the planets farther out. B. Several planets show large tilts of their rotation axis compared to the plane of their orbits. C. All the gas giants have moons. D. Several planets have dense atmospheres ...
AST 301 Fall 2007 Review for Exam 3 This exam covers only
... This exam covers only chapters 6 and 15, the solar system and its formation, NOT chapter 16 (the Sun), which we don’t have time to cover in class and so will postpone. Suggested end-of-chapter and online questions were sent to you by email and are available at the class website. Chapter 6: There are ...
... This exam covers only chapters 6 and 15, the solar system and its formation, NOT chapter 16 (the Sun), which we don’t have time to cover in class and so will postpone. Suggested end-of-chapter and online questions were sent to you by email and are available at the class website. Chapter 6: There are ...