Lecture 09
... • A transit is when a planet crosses in front of a star. • The resulting eclipse reduces the star’s apparent brightness and tells us the planet’s radius. • The duration of the dip tells us the radius of the star. • The duration of the downward\upward slopes tell us the radius of the planet. • The pl ...
... • A transit is when a planet crosses in front of a star. • The resulting eclipse reduces the star’s apparent brightness and tells us the planet’s radius. • The duration of the dip tells us the radius of the star. • The duration of the downward\upward slopes tell us the radius of the planet. • The pl ...
February 2015 - astronomy for beginners
... Comet Lovejoy has been steadily moving north from its The comet was at its closest to Earth on 7th January, at a starting point in the constellation of Lupus below the familiar distance of 70 million km. Since then it has been receding shape of Orion. The chart above shows the path that the night by ...
... Comet Lovejoy has been steadily moving north from its The comet was at its closest to Earth on 7th January, at a starting point in the constellation of Lupus below the familiar distance of 70 million km. Since then it has been receding shape of Orion. The chart above shows the path that the night by ...
Candles in the Dark
... ades. Not all stars are as constant as this, and astronomers know of thousands of variable stars ...
... ades. Not all stars are as constant as this, and astronomers know of thousands of variable stars ...
View the presentation slides
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
... Fortunately, optical techniques are capable of exquisite accuracy. Let’s look at some data. This is a “Jupiter” (M ~ 0.96 MJ) orbiting a “Sol” (M = 0.88 MS). The orbital period is 9 years (Jupiter’s is 12), because the orbit is a bit smaller (4.2 AU instead of 5.2). This is how astronomers 60 light- ...
Testing
... • How will we search for Earth-like planets? – Transit missions will be capable of finding 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 fo ...
... • How will we search for Earth-like planets? – Transit missions will be capable of finding 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 fo ...
Planets Unit Plan
... This book is part of the Magic School Bus series with the familiar characters of Ms. Frizzle, Arnold and the whole gang. It is a great resource for an introduction to the solar system as it goes through all of the planets and has funny commentary throughout the book. Somewhere in the Universe This b ...
... This book is part of the Magic School Bus series with the familiar characters of Ms. Frizzle, Arnold and the whole gang. It is a great resource for an introduction to the solar system as it goes through all of the planets and has funny commentary throughout the book. Somewhere in the Universe This b ...
ph709-15-testrevision
... Young stars are preferred because young planets are expected to be more luminous than older planets. In addition, direct imaging is based on detection of planet luminosity, which must be related to planet mass or size through uncertain theoretical models. Some stunning individual systems have been r ...
... Young stars are preferred because young planets are expected to be more luminous than older planets. In addition, direct imaging is based on detection of planet luminosity, which must be related to planet mass or size through uncertain theoretical models. Some stunning individual systems have been r ...
Dynamics of Planetary Systems - Uppsala Astronomical Observatory
... M1 /M and consider a solution for the orbital elements in terms of power series in m1 . A simple picture is the following. For any element E, the first term Eo is the current value. The second term (δ1 E) is found as a first-order solution of the differential equations using constant values of the ...
... M1 /M and consider a solution for the orbital elements in terms of power series in m1 . A simple picture is the following. For any element E, the first term Eo is the current value. The second term (δ1 E) is found as a first-order solution of the differential equations using constant values of the ...
All About Astronomy The Planets
... and others. The sun is the center of our solar system; the planets, their moons, a belt of asteroids, comets, and other rocks and gas orbit the sun. The eight planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Another large body is ...
... and others. The sun is the center of our solar system; the planets, their moons, a belt of asteroids, comets, and other rocks and gas orbit the sun. The eight planets that orbit the sun are (in order from the sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Another large body is ...
ppt
... • Every output class needs substantial representation in the training set. • Overlap between classes should be minimized. • Classifier accuracy can be improved with additional information (i.e., flux in different bandpass), but not always! ...
... • Every output class needs substantial representation in the training set. • Overlap between classes should be minimized. • Classifier accuracy can be improved with additional information (i.e., flux in different bandpass), but not always! ...
Lecture 1: Observations of planetary systems
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
... We reside in our own planetary system, and much of what we know about planets and their origin comes from observations of the Solar System. The Solar System comprises the Sun, eight planets, and a large number of smaller bodies (including “dwarf planets”, asteroids, comets, etc.). The eight planets ...
What is it? - Carmenes - Calar Alto Observatory
... Exoplanets and exoearths Our Solar System has eight planets. Four of them are “terrestrial” planets: Mercury (with its Moon-like surface), Venus (with its greenhouse atmosphere), the Earth (with its living creatures) and Mars (with its volcanoes and canyons), while the other four are “gas giant” pla ...
... Exoplanets and exoearths Our Solar System has eight planets. Four of them are “terrestrial” planets: Mercury (with its Moon-like surface), Venus (with its greenhouse atmosphere), the Earth (with its living creatures) and Mars (with its volcanoes and canyons), while the other four are “gas giant” pla ...
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... called dwarf galaxies. (Our own Milky Way has 200–400 billion stars.) The supernovae, which are almost a hundred times brighter than their host galaxies, illuminate their environments like distant street lamp ...
... called dwarf galaxies. (Our own Milky Way has 200–400 billion stars.) The supernovae, which are almost a hundred times brighter than their host galaxies, illuminate their environments like distant street lamp ...
l`Astrofilo - Astro Publishing
... in M-G binary systems raises the possibility of spectral niche variation, with different organisms in the same habitat adapted to use radiation from different stars at different times in the planet's orbit. Evolving a mechanism to exploit both types of radiation available in a habitat, switching bet ...
... in M-G binary systems raises the possibility of spectral niche variation, with different organisms in the same habitat adapted to use radiation from different stars at different times in the planet's orbit. Evolving a mechanism to exploit both types of radiation available in a habitat, switching bet ...
Supernova Stalking - Susanna Kumlien Reportage
... First of all, supernovae – or massive star explosions – are extremely rare. A supernova explosion doesn´t happen to every star. They occur only once in a hundred years or so in each galaxy. Finding that one specific star which is about to explode within the realms of one galaxy does indeed seem like ...
... First of all, supernovae – or massive star explosions – are extremely rare. A supernova explosion doesn´t happen to every star. They occur only once in a hundred years or so in each galaxy. Finding that one specific star which is about to explode within the realms of one galaxy does indeed seem like ...
Test - Scioly.org
... 3. Many of the planets discovered orbiting around stars are larger than Earth. Some of these planets are “Hot Jupiters”, which are much larger and more massive than Earth and orbit quit close to their host stars, much closer than Jupiter’s distance from the Sun. Which of the following have been p ...
... 3. Many of the planets discovered orbiting around stars are larger than Earth. Some of these planets are “Hot Jupiters”, which are much larger and more massive than Earth and orbit quit close to their host stars, much closer than Jupiter’s distance from the Sun. Which of the following have been p ...
Solar System
... • Titan is larger than planet Mercury! • Mimas has a huge crater. • Epimetheus and Janus, just inside the orbit of Mimas, are continually exchanging orbits with one another in a "waltz" -- they are called the ...
... • Titan is larger than planet Mercury! • Mimas has a huge crater. • Epimetheus and Janus, just inside the orbit of Mimas, are continually exchanging orbits with one another in a "waltz" -- they are called the ...
Focus Week: Messengers of Supernova Explosions
... 10 or 100 billions of stars, that the light even from the supernovae taking place far away in the Universe is detectable on the Earth. Observations such as these led to the discovery of dark energy in the Universe. To identify the nature of this enigmatic dark energy, it is necessary to deepen our t ...
... 10 or 100 billions of stars, that the light even from the supernovae taking place far away in the Universe is detectable on the Earth. Observations such as these led to the discovery of dark energy in the Universe. To identify the nature of this enigmatic dark energy, it is necessary to deepen our t ...
The search for Earth-like planets - Creation Ministries International
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
... extrasolar planets. Kepler has only recently undergone initial tests by aiming it at a known extrasolar planet whose star is called HAT-P-7. Scientists are quite excited by the high quality data that will be available from Kepler. Initial tests show the spacecraft is working quite well. The Kepler s ...
What theories account for the origin of the solar system?
... III. The Story of Planet Building A. A Review of the Origin of Matter B. The Chemical Composition of the Solar Nebula C. The Condensation of Solids D. The Formation of Planetesimals E. The Growth of Protoplanets F. Is There a Jovian Problem? G. Explaining the Characteristics of the Solar ...
... III. The Story of Planet Building A. A Review of the Origin of Matter B. The Chemical Composition of the Solar Nebula C. The Condensation of Solids D. The Formation of Planetesimals E. The Growth of Protoplanets F. Is There a Jovian Problem? G. Explaining the Characteristics of the Solar ...
The mystery of cosmic oceans and dunes Earth
... Tokyo, February 17, 2015: Simulations by researchers at Tokyo Institute of Technology and Tsinghua University indicate that Earth-like planets are more likely to be found orbiting Sun-like stars rather than lower-mass stars that are currently targeted, in terms of water contents of planets. The sear ...
... Tokyo, February 17, 2015: Simulations by researchers at Tokyo Institute of Technology and Tsinghua University indicate that Earth-like planets are more likely to be found orbiting Sun-like stars rather than lower-mass stars that are currently targeted, in terms of water contents of planets. The sear ...
Planets
... their own light Planets don't emit light, but do reflect sunlight Problem: reflect a billionth or less of the light from the companion star ...
... their own light Planets don't emit light, but do reflect sunlight Problem: reflect a billionth or less of the light from the companion star ...
Where to Look: Habitable Zones
... How do we know Frank Tipler exists? Have you ever seen him? There are 4 billion people on this planet, surely an intelligent creature would find some direct way of making his presence known to a sizeable fraction of the planet. . . ...
... How do we know Frank Tipler exists? Have you ever seen him? There are 4 billion people on this planet, surely an intelligent creature would find some direct way of making his presence known to a sizeable fraction of the planet. . . ...