The Constellations
... Pattern in the Sky • Star pattern repeats itself about every 24 hours… because of the rotation of Earth with respect to the distant stars! • Star pattern in the winter is different from that in the summer… because of the revolution of Earth around the Sun! • Stars do move back a nd forth (a teeny-ti ...
... Pattern in the Sky • Star pattern repeats itself about every 24 hours… because of the rotation of Earth with respect to the distant stars! • Star pattern in the winter is different from that in the summer… because of the revolution of Earth around the Sun! • Stars do move back a nd forth (a teeny-ti ...
Astronomical and Physical Sciences
... This is a composite photograph (not-to-scale) of all planets in the solar system, except Pluto. They are, from top to bottom: Mercury, Venus, Earth (with the Moon to the right), Mars, Jupiter, Saturn, Uranus, and Neptune. The photos were taken by Mariner 10 (Mercury), Pioneer Venus Orbiter (Venus), ...
... This is a composite photograph (not-to-scale) of all planets in the solar system, except Pluto. They are, from top to bottom: Mercury, Venus, Earth (with the Moon to the right), Mars, Jupiter, Saturn, Uranus, and Neptune. The photos were taken by Mariner 10 (Mercury), Pioneer Venus Orbiter (Venus), ...
From Simulation to Visualization: Astrophysics Goes
... Simulation Details Time Evolution Calculate forces, heating, other changes Update position, velocity, etc. with new values Repeat Data Output Write file of positions, velocities, etc Series of files covering simulation time ...
... Simulation Details Time Evolution Calculate forces, heating, other changes Update position, velocity, etc. with new values Repeat Data Output Write file of positions, velocities, etc Series of files covering simulation time ...
RP 4E1 Earth in the Universe - NC Science Wiki
... Students should begin to develop an inventory of the variety of things in the universe. Planets can be shown to be different from stars in two essential ways—their appearance and their motion. When a modest telescope or pair of binoculars is used instead of the naked eyes, stars only look brighter— ...
... Students should begin to develop an inventory of the variety of things in the universe. Planets can be shown to be different from stars in two essential ways—their appearance and their motion. When a modest telescope or pair of binoculars is used instead of the naked eyes, stars only look brighter— ...
The loss of nitrogen-rich atmospheres from Earth-like
... important factor which influences the evolution of atmospheres and planetary water inventories. Based on the energy source, escape processes can be separated into thermal escape and non-thermal escape. Kulikov et al. (2006) and Lammer et al. (2007) found that high XUV radiation of the active young S ...
... important factor which influences the evolution of atmospheres and planetary water inventories. Based on the energy source, escape processes can be separated into thermal escape and non-thermal escape. Kulikov et al. (2006) and Lammer et al. (2007) found that high XUV radiation of the active young S ...
Our Fun Sun - Environmental Science Institute
... times larger relative to the earth’s gravitational force. This force will determine how much something would weigh on the sun. You can see that the mass of the object will always remain the same, but the weight changes due to different forces of gravity. The different values of gravitational force o ...
... times larger relative to the earth’s gravitational force. This force will determine how much something would weigh on the sun. You can see that the mass of the object will always remain the same, but the weight changes due to different forces of gravity. The different values of gravitational force o ...
Astronomy Unit - rachaelreeves
... http://science.nationalgeographic.com/science/space/planets After you have your information, create a one page “biography” of your planet. The “biography” should be visually appealing and include: A title At least 1 picture Properties of the planet: composition (rock or gas?), climate, volcani ...
... http://science.nationalgeographic.com/science/space/planets After you have your information, create a one page “biography” of your planet. The “biography” should be visually appealing and include: A title At least 1 picture Properties of the planet: composition (rock or gas?), climate, volcani ...
The Solar System - Ms. Kassim`s science website
... Take a trip To Mars! Activity - Please take a trip to that great red planet called Mars. When you get there write a paragraph on what you find and bring to class on Tuesday.Have a spacetacular time! Our Solar System A Little Asteroid Knowledge - Please read information about asteroids and answer 4 q ...
... Take a trip To Mars! Activity - Please take a trip to that great red planet called Mars. When you get there write a paragraph on what you find and bring to class on Tuesday.Have a spacetacular time! Our Solar System A Little Asteroid Knowledge - Please read information about asteroids and answer 4 q ...
Document
... • It was further than any star in the Milky Way galaxy • He concluded that the star was in a separate galaxy • Cepheid variable stars have been used to show that most spiral nebulae are distant galaxies, of which there are billions in the Universe. ...
... • It was further than any star in the Milky Way galaxy • He concluded that the star was in a separate galaxy • Cepheid variable stars have been used to show that most spiral nebulae are distant galaxies, of which there are billions in the Universe. ...
Document
... Use the ecliptic and the celestial sphere to explain the positions that lead to lunar and solar eclipses. Match cycles of the moon to corresponding positions of Earth, moon, and sun. Explain why the constellations visible in the night sky change throughout the year. As.1.2 Use scientific not ...
... Use the ecliptic and the celestial sphere to explain the positions that lead to lunar and solar eclipses. Match cycles of the moon to corresponding positions of Earth, moon, and sun. Explain why the constellations visible in the night sky change throughout the year. As.1.2 Use scientific not ...
Planetary exploration
... dimming starlight during stellar occultations by the dwarf planet. Ron Miller ...
... dimming starlight during stellar occultations by the dwarf planet. Ron Miller ...
The most important questions to study for the exam
... • It contains the biggest and brightest stars. • It contains the greatest number of stars. • It consists almost entirely of hot, bright stars. 8. A certain star is seen to have a relatively low surface temperature but a very high luminosity. What can we conclude from these observations? • The star i ...
... • It contains the biggest and brightest stars. • It contains the greatest number of stars. • It consists almost entirely of hot, bright stars. 8. A certain star is seen to have a relatively low surface temperature but a very high luminosity. What can we conclude from these observations? • The star i ...
2011 - Edexcel
... 8 A group of students were observing the Perseid meteor shower that occurs annually in August. This shower is caused by a short-period comet. (a) Where is the origin of most short-period comets? ...
... 8 A group of students were observing the Perseid meteor shower that occurs annually in August. This shower is caused by a short-period comet. (a) Where is the origin of most short-period comets? ...
Stars
... amount of energy, but there are billions of reactions per second. Each second, the Sun produces 4 × 1026 joules of energy. It would take 2,000 million nuclear power plants a whole year to produce the same amount of energy on Earth. In the Sun, and in most stars, hydrogen atoms fuse together to form ...
... amount of energy, but there are billions of reactions per second. Each second, the Sun produces 4 × 1026 joules of energy. It would take 2,000 million nuclear power plants a whole year to produce the same amount of energy on Earth. In the Sun, and in most stars, hydrogen atoms fuse together to form ...
Quiz Reviews - Orion Observatory
... 3. How was the term “Big Bang” coined, and did any steady-state theorists deny the Big Bang after the cosmic microwave background was discovered? 4. What is the cosmic microwave background radiation? Why did it have to exist? How was it discovered? Who got credit for discovering it? 5. Why did ripp ...
... 3. How was the term “Big Bang” coined, and did any steady-state theorists deny the Big Bang after the cosmic microwave background was discovered? 4. What is the cosmic microwave background radiation? Why did it have to exist? How was it discovered? Who got credit for discovering it? 5. Why did ripp ...
8L Earth and Space SoW
... maximum height, how to make various weather measuring instruments and how teams of students can be organised into a ‘Rocket Range Crew’. L4-6 – 3 Investigating orbits, The AT spreadsheet Investigating orbits provides data about the Solar System which students use to plot graphs to help them to descr ...
... maximum height, how to make various weather measuring instruments and how teams of students can be organised into a ‘Rocket Range Crew’. L4-6 – 3 Investigating orbits, The AT spreadsheet Investigating orbits provides data about the Solar System which students use to plot graphs to help them to descr ...
What is a planet? - X-ray and Observational Astronomy Group
... • Sudden change in disc properties could be achieved by cooling or by a dynamical interaction. • Simulations show a large number of planets form from a single disc. • Only produces gaseous planets – rocky (terrestrial) planets are not formed. • Is not applicable to the solar system. ...
... • Sudden change in disc properties could be achieved by cooling or by a dynamical interaction. • Simulations show a large number of planets form from a single disc. • Only produces gaseous planets – rocky (terrestrial) planets are not formed. • Is not applicable to the solar system. ...
Distance measurement in Astronomy
... For example the time between the radar pulse being sent out and the reflected pulse being received would be 2.5 s for the Moon and up to 50 minutes for Jupiter and around five and a half hours for Pluto. (The last two numbers depend on the relative positions of the Earth, Jupiter and Pluto in their ...
... For example the time between the radar pulse being sent out and the reflected pulse being received would be 2.5 s for the Moon and up to 50 minutes for Jupiter and around five and a half hours for Pluto. (The last two numbers depend on the relative positions of the Earth, Jupiter and Pluto in their ...
Outline2a
... Eventually, the proto-star will fuse hydrogen in its core. This energy will greatly increase the radiation pressure that the photons create on their surroundings. A stellar wind will begin to blow material away. ...
... Eventually, the proto-star will fuse hydrogen in its core. This energy will greatly increase the radiation pressure that the photons create on their surroundings. A stellar wind will begin to blow material away. ...
the galaxy in which we live - Cosmos
... discovered outside our Solar System. Gaia will drastically increase this number, detecting about 15000 Jupiter mass planets around stars other than the Sun. This corresponds to more than 5 new planets per day, for each day of the 5-year mission! It will do so by observing the wobble of the star due ...
... discovered outside our Solar System. Gaia will drastically increase this number, detecting about 15000 Jupiter mass planets around stars other than the Sun. This corresponds to more than 5 new planets per day, for each day of the 5-year mission! It will do so by observing the wobble of the star due ...
EM review
... Brightness measured in terms of radiated flux, F. This is the total amount of light energy emitted per surface area. Assuming that the star is spherical, F=L/4πr2, where L is the star’s luminosity. Also defined is the absolute magnitude of a star, M. This is the apparent magnitude a star would hav ...
... Brightness measured in terms of radiated flux, F. This is the total amount of light energy emitted per surface area. Assuming that the star is spherical, F=L/4πr2, where L is the star’s luminosity. Also defined is the absolute magnitude of a star, M. This is the apparent magnitude a star would hav ...
Grade 9 Applied
... If the answer is true write T. If the answer is false write F. 26. _____ A nebula is a cloud of dust and gas, the birthplace of stars. 27. _____ Distances between the planets are measured in astronomical units. 28. _____ There is a black hole very close to the Earth. 29. _____The Milky Way is an ell ...
... If the answer is true write T. If the answer is false write F. 26. _____ A nebula is a cloud of dust and gas, the birthplace of stars. 27. _____ Distances between the planets are measured in astronomical units. 28. _____ There is a black hole very close to the Earth. 29. _____The Milky Way is an ell ...
A105 Stars and Galaxies
... nuclear reactions until they have converted all the hydrogen and helium in their cores into iron. • Once the core is iron, no more energy can be generated • The core collapses and the star explodes ...
... nuclear reactions until they have converted all the hydrogen and helium in their cores into iron. • Once the core is iron, no more energy can be generated • The core collapses and the star explodes ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 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. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.