Study Guide #3 Answer Key
... The Galactic Halo extends outward, but is limited in size by the orbits of two Milky Way satellites, the Large and the Small Magellanic Clouds, whose perigalacticon is at ~180,000 ly (1.7×1018 km).[11] At this distance or beyond, the orbits of most halo objects would be disrupted by the Magellanic C ...
... The Galactic Halo extends outward, but is limited in size by the orbits of two Milky Way satellites, the Large and the Small Magellanic Clouds, whose perigalacticon is at ~180,000 ly (1.7×1018 km).[11] At this distance or beyond, the orbits of most halo objects would be disrupted by the Magellanic C ...
universal gravitation pdf
... Gravitation and the Universe • Planets, moons, stars are spherical due to gravity • All planets affect each other, can cause perturbations (wobbles) in orbits • Neptune and Pluto were discovered because of perturbations in Uranus’ orbit. • Perturbations of distant stars have led to discoveries of p ...
... Gravitation and the Universe • Planets, moons, stars are spherical due to gravity • All planets affect each other, can cause perturbations (wobbles) in orbits • Neptune and Pluto were discovered because of perturbations in Uranus’ orbit. • Perturbations of distant stars have led to discoveries of p ...
origins of the Universe
... in the early 1900’s astronomers started to find evidence that pointed to a Big Bang. • In 1922, astronomer Edwin Hubble observed that the universe was expanding. The most distant galaxies he could see through his telescope were moving away at about 40 000 km per second. • This observation led to wha ...
... in the early 1900’s astronomers started to find evidence that pointed to a Big Bang. • In 1922, astronomer Edwin Hubble observed that the universe was expanding. The most distant galaxies he could see through his telescope were moving away at about 40 000 km per second. • This observation led to wha ...
PH709-10-asn1ans
... Microlensing planets leads to a sharp peak in flux as a background star is ‘lensed’ by the star and planet, the light being bent according to General Relativity. The event is one-off and planet discovery requires confirmation by other techniques. ...
... Microlensing planets leads to a sharp peak in flux as a background star is ‘lensed’ by the star and planet, the light being bent according to General Relativity. The event is one-off and planet discovery requires confirmation by other techniques. ...
Of Orbs and Orbits
... to appreciate that they involve physical bodies similar at least in some respects to those familiar to us. If celestial bodies are perceived as deities, spirits, or ethereal manifestations of some sort, they will be capricious and highly unpredictable. If, on the other hand, the Sun and stars resemb ...
... to appreciate that they involve physical bodies similar at least in some respects to those familiar to us. If celestial bodies are perceived as deities, spirits, or ethereal manifestations of some sort, they will be capricious and highly unpredictable. If, on the other hand, the Sun and stars resemb ...
NAM_f2
... Our preliminary lightcurves are encouraging, and suggest we could be able to detect transit like features in around 23,000 lightcurves. Early lightcurve production has focussed on the very brightest stars in the sky e.g. Canopus. In the preliminary data the Canopus lightcurve exhibits a noise level ...
... Our preliminary lightcurves are encouraging, and suggest we could be able to detect transit like features in around 23,000 lightcurves. Early lightcurve production has focussed on the very brightest stars in the sky e.g. Canopus. In the preliminary data the Canopus lightcurve exhibits a noise level ...
The Universe
... small quantities of water. large quantities of water. no water at all. 3. The Earth orbits…. around Mars. around the Sun. around the Moon. 4. The Earth…. is square. is round. is triangular. 5. For the Earth to have life on it, there must be… Water, an atmosphere and light and heat from the moon. Wat ...
... small quantities of water. large quantities of water. no water at all. 3. The Earth orbits…. around Mars. around the Sun. around the Moon. 4. The Earth…. is square. is round. is triangular. 5. For the Earth to have life on it, there must be… Water, an atmosphere and light and heat from the moon. Wat ...
The Search for Extrasolar Planets
... the planet, the disk and the star18-20. The details of this mechanism are quite elaborate, and are still studied, but it is already certain that it can bring a planet that was formed outside the “snow line” into close proximity with the host star, thus explaining the existence of “Hot Jupiters”. Mas ...
... the planet, the disk and the star18-20. The details of this mechanism are quite elaborate, and are still studied, but it is already certain that it can bring a planet that was formed outside the “snow line” into close proximity with the host star, thus explaining the existence of “Hot Jupiters”. Mas ...
night watch - Warren Astronomical Society
... -2The best method for determining the radius of Pluto, as it is for Neptune, is to observe a stellar occultation. It was predicted that Pluto would pass near a 15th magnitude star in 1965, and so the passage was observed very closely by several observatories to see if the star would be occulted. We ...
... -2The best method for determining the radius of Pluto, as it is for Neptune, is to observe a stellar occultation. It was predicted that Pluto would pass near a 15th magnitude star in 1965, and so the passage was observed very closely by several observatories to see if the star would be occulted. We ...
What Is the Solar System?: Reinforcement Activity - Carson
... The sun is one of billions of stars in our part of the universe. That’s right, explorers, I said the sun is a star. It is our local star; it is the center of our solar system. People used to believe that the earth was the center of the solar system and that the planets revolved around it. The sun i ...
... The sun is one of billions of stars in our part of the universe. That’s right, explorers, I said the sun is a star. It is our local star; it is the center of our solar system. People used to believe that the earth was the center of the solar system and that the planets revolved around it. The sun i ...
Lecture 7 Gravity and satellites
... gravitational field strength at that location, the motion of the object could be considered as free falling. A person during free falling would experience apparent weightlessness (a = g and N = 0) Motion of the planets A satellite is an object that is in a stable orbit around a more massive central ...
... gravitational field strength at that location, the motion of the object could be considered as free falling. A person during free falling would experience apparent weightlessness (a = g and N = 0) Motion of the planets A satellite is an object that is in a stable orbit around a more massive central ...
Today`s Powerpoint
... Radii range from 1570 km (Europa, slightly smaller than our Moon), to 2630 km (Ganymede - largest moon in Solar System). Orbital periods range from 1.77 days (Io) to 16.7 days (Callisto). The closer to Jupiter, the higher the moon density: from 3.5 g/cm3 (Io) to 1.8 ...
... Radii range from 1570 km (Europa, slightly smaller than our Moon), to 2630 km (Ganymede - largest moon in Solar System). Orbital periods range from 1.77 days (Io) to 16.7 days (Callisto). The closer to Jupiter, the higher the moon density: from 3.5 g/cm3 (Io) to 1.8 ...
nebular theory - Marcia`s Science Teaching Ideas
... 8. Inner protoplanets - most of their lightweight gases are boiled away, Outer protoplanets - the lightweight gases did not boil away so the appear much larger Why? because of the heat from the nearby sun 9. Moons (Protomoons) 10. Perhaps one of Neptune's moons broke away or was pushed by an impact) ...
... 8. Inner protoplanets - most of their lightweight gases are boiled away, Outer protoplanets - the lightweight gases did not boil away so the appear much larger Why? because of the heat from the nearby sun 9. Moons (Protomoons) 10. Perhaps one of Neptune's moons broke away or was pushed by an impact) ...
Tour of the Universe
... ● 6 of the planets have moons orbiting them. Them bigger ones have more moons than the smaller ones. ● Earth's moon was formed 4.5 billion years ago from material ejected when a collision occurred between a Marssize object and the Earth. Asteroids ● Rocky objects orbiting the Sun with million ...
... ● 6 of the planets have moons orbiting them. Them bigger ones have more moons than the smaller ones. ● Earth's moon was formed 4.5 billion years ago from material ejected when a collision occurred between a Marssize object and the Earth. Asteroids ● Rocky objects orbiting the Sun with million ...
Introduction This book will teach you all you need to know about the
... characteristic is that a planet must have enough mass to make itself round. The second is that it must orbit the sun. The third and final characteristic is that it must clear its neighborhood of everything. That means that when asteroids hit earth or other planets that is the planets way of clearing ...
... characteristic is that a planet must have enough mass to make itself round. The second is that it must orbit the sun. The third and final characteristic is that it must clear its neighborhood of everything. That means that when asteroids hit earth or other planets that is the planets way of clearing ...
Introduction Exploring the Heavens
... First models of solar system were geocentric, but couldn't easily explain retrograde motion Heliocentric model does Galileo's observations supported heliocentric model Kepler found three empirical laws of planetary motion from observations ...
... First models of solar system were geocentric, but couldn't easily explain retrograde motion Heliocentric model does Galileo's observations supported heliocentric model Kepler found three empirical laws of planetary motion from observations ...
Grade 11 Cosmology PPT File
... Describes a relationship between the radius of the planets (average distance to the sun) and the time taken for one complete orbit. T2 is proportional to R3 Click for K3 Movie ...
... Describes a relationship between the radius of the planets (average distance to the sun) and the time taken for one complete orbit. T2 is proportional to R3 Click for K3 Movie ...
WHERE DO WE SEARCH FOR LIFE IN THE UNIVERSE?
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
Refuges for Life in a - University of Arizona
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
Can Earth-Type Habitable Planets Exist Around 47 UMa?
... 6 Gyr). If the age of the star-planet system is 6 Gyr or less, the existence of life would be consistent with all three continental growth models considered. In spite of those caveats, indicating that the 47 UMa system is \a much less than ideal candidate" for extraterrestrial life, it should be n ...
... 6 Gyr). If the age of the star-planet system is 6 Gyr or less, the existence of life would be consistent with all three continental growth models considered. In spite of those caveats, indicating that the 47 UMa system is \a much less than ideal candidate" for extraterrestrial life, it should be n ...
Student 4
... Red dwarfs are by far the most common type of star in our galaxy but because they are dull, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. Proxima Centauri, the nearest star to the Sun, is a red dwarf, as are twenty of the next thirty nearest. Red d ...
... Red dwarfs are by far the most common type of star in our galaxy but because they are dull, individual red dwarfs cannot easily be observed. From Earth, not one is visible to the naked eye. Proxima Centauri, the nearest star to the Sun, is a red dwarf, as are twenty of the next thirty nearest. Red d ...
Planet Uranus Reading Comprehension Page
... Jupiter and scientists believe these spots are swirling masses of gas moving at wind speeds similar a hurricane. Uranus is a large planet with a diameter about four times the diameter of Earth. Uranus is the seventh planet away from the Sun in our solar system. Since Uranus is so far away from Earth ...
... Jupiter and scientists believe these spots are swirling masses of gas moving at wind speeds similar a hurricane. Uranus is a large planet with a diameter about four times the diameter of Earth. Uranus is the seventh planet away from the Sun in our solar system. Since Uranus is so far away from Earth ...
8 Grade SOL Review Packet
... 2. Nicholas __________________________ was the first astronomer to formulate a scientifically based _________________________ theory that displaced the Earth from the center of the universe. He believed the sun was the center of our solar system. 3. ___________________confirmed Copernicus’ heliocent ...
... 2. Nicholas __________________________ was the first astronomer to formulate a scientifically based _________________________ theory that displaced the Earth from the center of the universe. He believed the sun was the center of our solar system. 3. ___________________confirmed Copernicus’ heliocent ...
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.