Lecture 7: Extrasolar Planets 01/08/2013 update: 725 exoplanets
... where MJ is the mass of Jupiter, should have almost the same radii (i.e. a flat mass-radius relation). -> Giant extrasolar planets transiting solar-type stars produce transits with a depth of around 1%. Close-in planets are strongly irradiated, so their radii can be (detectably) larger. But this hea ...
... where MJ is the mass of Jupiter, should have almost the same radii (i.e. a flat mass-radius relation). -> Giant extrasolar planets transiting solar-type stars produce transits with a depth of around 1%. Close-in planets are strongly irradiated, so their radii can be (detectably) larger. But this hea ...
Could Planets orbiting Red Dwarf stars support Oxygenic
... - Although most stars orbit each other in groups of two or three, planets orbiting one or more stars may have strange, but not life impossible climates (2 or three Suns). - RDs are long lived – an apparent requirement for the evolution of complex life forms. - Although early RD star life is characte ...
... - Although most stars orbit each other in groups of two or three, planets orbiting one or more stars may have strange, but not life impossible climates (2 or three Suns). - RDs are long lived – an apparent requirement for the evolution of complex life forms. - Although early RD star life is characte ...
an all-sky extrasolar planet survey with multiple object, dispersed
... For a review of the state of the field, see Marcy et al. (2005). These discoveries not only provide new challenges for the fields of planetary origins and evolution, but also indicate that a large sample of planets is required to obtain a general understanding of the nature of extrasolar planets and ...
... For a review of the state of the field, see Marcy et al. (2005). These discoveries not only provide new challenges for the fields of planetary origins and evolution, but also indicate that a large sample of planets is required to obtain a general understanding of the nature of extrasolar planets and ...
The Naked Eye Era
... Aristotle’s view that the stars and the constellations were forever unchanging still held sway in Tycho’s time; anything that moved or fluctuated in brightness was assumed to be occurring within the Earth’s atmosphere. The new star of 1572, for which Tycho coined the word nova but which we would now ...
... Aristotle’s view that the stars and the constellations were forever unchanging still held sway in Tycho’s time; anything that moved or fluctuated in brightness was assumed to be occurring within the Earth’s atmosphere. The new star of 1572, for which Tycho coined the word nova but which we would now ...
Exploring the Solar System Jeopardy!
... Planets & Pluto: 500 Name the eight planets in order by increasing distance from the sun (closest to furthest). ...
... Planets & Pluto: 500 Name the eight planets in order by increasing distance from the sun (closest to furthest). ...
Rings are very common around th
... spectrum from a region close to Saturn and more distant, we find that the wavelength shifts are larger close to Saturn and smaller at the outer edge of the rings as shown in the picture below. Recall that wavelength shifts are proportional to velocities and recall Kepler’s Laws which tell us that ob ...
... spectrum from a region close to Saturn and more distant, we find that the wavelength shifts are larger close to Saturn and smaller at the outer edge of the rings as shown in the picture below. Recall that wavelength shifts are proportional to velocities and recall Kepler’s Laws which tell us that ob ...
Assignment 2 - utoledo.edu
... ____ 33. In Ptolemy's system the planets orbit the Earth and not the Sun. How did the system explain the retrograde motion of planets like Jupiter? a. the planets were not moving along the ecliptic but all over the celestial sphere b. the planets moved in very elongated ellipses, and their speed i ...
... ____ 33. In Ptolemy's system the planets orbit the Earth and not the Sun. How did the system explain the retrograde motion of planets like Jupiter? a. the planets were not moving along the ecliptic but all over the celestial sphere b. the planets moved in very elongated ellipses, and their speed i ...
Earth in Space - 7-8WMS
... This system includes objects of different masses and composition such as planets, moons, asteroids, minor planets, and comets. ...
... This system includes objects of different masses and composition such as planets, moons, asteroids, minor planets, and comets. ...
Stability of the Moons orbits in Solar system in the restricted three
... As we can see from the Tab.1 above, the dimensionless key parameter , which determines the character of moving of the small 3-rd body m₃ (Moon) relative to the 2-nd body m₂ (Planet), is varying for all variety of the moons of the Planets (in Solar system) from the meaning 0.000410ˉ⁶ (for Proteus o ...
... As we can see from the Tab.1 above, the dimensionless key parameter , which determines the character of moving of the small 3-rd body m₃ (Moon) relative to the 2-nd body m₂ (Planet), is varying for all variety of the moons of the Planets (in Solar system) from the meaning 0.000410ˉ⁶ (for Proteus o ...
Study Guide Beginning Astronomy
... Earth's diameter is about 8000 miles Moon's distance is about 60 Earth radii (240,000 miles) Average distance of Earth to Sun is about 93 million miles (150 million km) One light-year is how far light travels in a vacuum in a year, about 6 trillion miles. “Parsec” is short for “parallax of a second ...
... Earth's diameter is about 8000 miles Moon's distance is about 60 Earth radii (240,000 miles) Average distance of Earth to Sun is about 93 million miles (150 million km) One light-year is how far light travels in a vacuum in a year, about 6 trillion miles. “Parsec” is short for “parallax of a second ...
1 UNIT 3 EARTH HISTORY - POSSIBLE TEST QUESTIONS OUR
... 42. How long does it take light from our Sun to arrive to Earth? Classification of Stars 43. Based on temperature and brightness, our Sun is _________. 44. What are the two types of super-giant stars? Fate of Stars 45. Over time, what is the fate of our sun? 46. What might be the fate of our sun if ...
... 42. How long does it take light from our Sun to arrive to Earth? Classification of Stars 43. Based on temperature and brightness, our Sun is _________. 44. What are the two types of super-giant stars? Fate of Stars 45. Over time, what is the fate of our sun? 46. What might be the fate of our sun if ...
Theme 3.1 Astronomy of the Ancients Stonehenge Most people
... assumed. And finally we note also that the moon and the sun appear to move at varying speeds across the starry background -- again inconsistent with simple circular motion. Here is a reminder of what we mean by retrograde loops. If you were to go out night after night and look at the motion of Jupi ...
... assumed. And finally we note also that the moon and the sun appear to move at varying speeds across the starry background -- again inconsistent with simple circular motion. Here is a reminder of what we mean by retrograde loops. If you were to go out night after night and look at the motion of Jupi ...
the rest of the univ..
... Spectra and photometric data have been obtained for 5145 Pholus. Its albedo is very low (less than 0.1). Its spectra indicates the presence of organic compounds, which are often very dark (e.g. the nucleus of Comet Halley). Some believe that Triton, Pluto and its moon Charon are merely the largest e ...
... Spectra and photometric data have been obtained for 5145 Pholus. Its albedo is very low (less than 0.1). Its spectra indicates the presence of organic compounds, which are often very dark (e.g. the nucleus of Comet Halley). Some believe that Triton, Pluto and its moon Charon are merely the largest e ...
Nov 2017 - What`s Out Tonight?
... The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great examples. cury, Venus, Mars, Jupiter and Saturn. Venus is ext ...
... The planets are best observed with a telescope using magnifithat were born out of the same nebula cloud. A group often forms cations from 50x to 200x. The five naked-eye planets are Mera pretty pattern. The Pleiades and Praesepe are great examples. cury, Venus, Mars, Jupiter and Saturn. Venus is ext ...
The model of the formation of solar system formation in The Urantia
... large objects in the Kuiper Belt has led to a debate about the definition of the word "planet" and whether Pluto should have that status, and if it does whether the new objects should as well [21]. The two new objects, Quaoar [17] and Varuna [74], are smaller than Pluto, but still large enough for g ...
... large objects in the Kuiper Belt has led to a debate about the definition of the word "planet" and whether Pluto should have that status, and if it does whether the new objects should as well [21]. The two new objects, Quaoar [17] and Varuna [74], are smaller than Pluto, but still large enough for g ...
benchmarks and task analyses - I
... comets, and particles of dust and gas that revolve around the sun. Each of the nine planets spins around an imaginary axis through its center, while also traveling in a clockwise direction around the sun. The word planet comes from the Greek “planets,” which means “wanderer.” The distances from plan ...
... comets, and particles of dust and gas that revolve around the sun. Each of the nine planets spins around an imaginary axis through its center, while also traveling in a clockwise direction around the sun. The word planet comes from the Greek “planets,” which means “wanderer.” The distances from plan ...
Where are small bodies in the solar system?
... What are Kuiper belt objects? The Kuiper belt is a region of the solar system that begins just beyond the orbit of Neptune. • The Kuiper belt extends outward to about twice the orbit of Neptune, a distance of about 55 ...
... What are Kuiper belt objects? The Kuiper belt is a region of the solar system that begins just beyond the orbit of Neptune. • The Kuiper belt extends outward to about twice the orbit of Neptune, a distance of about 55 ...
How a small scientific spark grew during the Renaissance
... From Ptolemaeus life we don’t know much. But he was more common as Ptolomy. However, he is known for three scholar works, they all have to do with Geography, Astronomy and Geometry. Ptolomy made the first steps in understanding our Universe. The model of the solar system developed by Ptolemy (87 - 1 ...
... From Ptolemaeus life we don’t know much. But he was more common as Ptolomy. However, he is known for three scholar works, they all have to do with Geography, Astronomy and Geometry. Ptolomy made the first steps in understanding our Universe. The model of the solar system developed by Ptolemy (87 - 1 ...
Section 2 Practice Test
... 22. _______________________ are small bodies of ice and cosmic dust. 23. Most asteroids in our solar system are found between _______________________ and _______________________. 24. The counterclockwise spin of a planet or moon as seen from above the planet’s North Pole is _______________________. ...
... 22. _______________________ are small bodies of ice and cosmic dust. 23. Most asteroids in our solar system are found between _______________________ and _______________________. 24. The counterclockwise spin of a planet or moon as seen from above the planet’s North Pole is _______________________. ...
Planetary accretion in the inner Solar System
... in terms of their orbits and masses, although they may have originated under very different conditions. Currently, we lack a way to detect terrestrial planets in orbit around ordinary stars [2], so we have almost no notion of how common or otherwise Earth-like planets may be. As tantalizing as the n ...
... in terms of their orbits and masses, although they may have originated under very different conditions. Currently, we lack a way to detect terrestrial planets in orbit around ordinary stars [2], so we have almost no notion of how common or otherwise Earth-like planets may be. As tantalizing as the n ...
03_LectureOutlines
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
... Earth is stationary in the geocentric model but moves around Sun in Sun-centered model. Retrograde motion is real (planets really go backward) in geocentric model but only apparent (planets don’t really turn around) in Suncentered model. Stellar parallax is expected in the Sun-centered model but not ...
Kepler`s Search for Exoplanets
... Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s just a matter of time before we find ano ...
... Here we’ve marked stars with confirmed exoplanets. There are over nearly 2000 confirmed exoplanets [update as needed], and we’re still just getting started! Results from Kepler indicate that it’s likely every star we see in the night sky has planets. And it’s just a matter of time before we find ano ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.