Astronomy 212 EXAM 1 2000 September 29 Answer
... 30. “Superior planets have retrograde motion at opposition.” Define: superior planet, retrograde motion and opposition. 31. What observations supported the following “scientific” theories. (a) The Earth is a sphere. (b) The heavens are made of an element (the quintessence) unlike earthly elements. ( ...
... 30. “Superior planets have retrograde motion at opposition.” Define: superior planet, retrograde motion and opposition. 31. What observations supported the following “scientific” theories. (a) The Earth is a sphere. (b) The heavens are made of an element (the quintessence) unlike earthly elements. ( ...
–1– AST104 Sp06: Welcome to EXAM 2 Multiple Choice Questions
... O,B,A,F,G,K,M) can be used to infer a star’s photospheric temperature. 46. We know the average density of each of the planets because spacecraft have sampled material from each of them. 47. Convection does not play a significant role in transporting heat from the interior of the sun to its surface. ...
... O,B,A,F,G,K,M) can be used to infer a star’s photospheric temperature. 46. We know the average density of each of the planets because spacecraft have sampled material from each of them. 47. Convection does not play a significant role in transporting heat from the interior of the sun to its surface. ...
Response to Matthew Miller re Geocentrism
... The sun would have to be much, much smaller for the Earth to keep it in orbit, well below the lower threshold for it to contain enough gas to ignite into an active star. As a result it would need a very different fuel source than what we believe it has now. R. Sungenis: No, not quite true. Miller’s ...
... The sun would have to be much, much smaller for the Earth to keep it in orbit, well below the lower threshold for it to contain enough gas to ignite into an active star. As a result it would need a very different fuel source than what we believe it has now. R. Sungenis: No, not quite true. Miller’s ...
Aust Curriculum Connections 2012
... Seasonal stars and constellations. Constellations, planets and tonight’s sky. The other planets: orbits and time for a “year”. What are the planets made of? Could I land on Jupiter? How many “years” old would I be if I lived on other planets? How long would it take to travel there? Why are some bodi ...
... Seasonal stars and constellations. Constellations, planets and tonight’s sky. The other planets: orbits and time for a “year”. What are the planets made of? Could I land on Jupiter? How many “years” old would I be if I lived on other planets? How long would it take to travel there? Why are some bodi ...
Chapter 1 - Colorado Mesa University
... We define planets to be A celestial body that is (a) in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
... We define planets to be A celestial body that is (a) in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
As a nebula
... 24. What is Pluto classified as? •A dwarf planet 25. What is revolution? •The motion of one object around another object 26. Identify an object that carries out this process. •The planets revolve around the sun. •The moon revolves around the Earth. •Asteroids and comets revolve around the sun. 27. ...
... 24. What is Pluto classified as? •A dwarf planet 25. What is revolution? •The motion of one object around another object 26. Identify an object that carries out this process. •The planets revolve around the sun. •The moon revolves around the Earth. •Asteroids and comets revolve around the sun. 27. ...
where it is, how big it
... planets in our solar system which do not have solid surfaces, their gaseous material simply gets denser with depth. What we see when looking at these planets is the tops of clouds high in their atmospheres. Jupiter is about 90% hydrogen and 10% helium with traces of methane, water, ammonia and "rock ...
... planets in our solar system which do not have solid surfaces, their gaseous material simply gets denser with depth. What we see when looking at these planets is the tops of clouds high in their atmospheres. Jupiter is about 90% hydrogen and 10% helium with traces of methane, water, ammonia and "rock ...
Coursework 6 File
... 1. A planet of mass Mp forms around a star with mass M∗ with separation r, and an orbiting satellite forms around the planet with semimajor axis asat . By considering the tidal acceleration exerted by the central star on the planet–satellite system (that acts to pull them apart), and the gravitation ...
... 1. A planet of mass Mp forms around a star with mass M∗ with separation r, and an orbiting satellite forms around the planet with semimajor axis asat . By considering the tidal acceleration exerted by the central star on the planet–satellite system (that acts to pull them apart), and the gravitation ...
holiday ho holiday homework
... planet at more than two hundred twenty mph. Violent winds shoot sand made of silicate around Venus’s very dry, arid surface. The temperature averages nine hundred degrees, and the pressure’s ninety times that on Earth. It takes two hundred and twenty four days to orbit the sun. Like Mercury, Venus w ...
... planet at more than two hundred twenty mph. Violent winds shoot sand made of silicate around Venus’s very dry, arid surface. The temperature averages nine hundred degrees, and the pressure’s ninety times that on Earth. It takes two hundred and twenty four days to orbit the sun. Like Mercury, Venus w ...
скачати - Essays, term papers, dissertation, diplomas - ua
... Newton’s laws of motion and law of gravitation can be used to explain the forces, position and motion of all objects in the universe. A simple analogy of how gravity controls the motion of a planet around the Sun can be shown by a mass on the end of a string being spun around in a horizontal plane a ...
... Newton’s laws of motion and law of gravitation can be used to explain the forces, position and motion of all objects in the universe. A simple analogy of how gravity controls the motion of a planet around the Sun can be shown by a mass on the end of a string being spun around in a horizontal plane a ...
Astronomy Milestone/OAS practice
... 34. Footprints made by astronauts on the Moon many years ago are probably still there because A. the heavy astronauts left very deep footprints in the Moon's dust. B. the dust on the Moon hardened into stone. C. time passes much more slowly on the Moon. D. the Moon has no weather. 35. An object in t ...
... 34. Footprints made by astronauts on the Moon many years ago are probably still there because A. the heavy astronauts left very deep footprints in the Moon's dust. B. the dust on the Moon hardened into stone. C. time passes much more slowly on the Moon. D. the Moon has no weather. 35. An object in t ...
Pale Blue Dot - Pacific Science Center
... In figure 9 we see a highly eccentric orbit. If it takes 1 day for the planet to travel from a to a, and 1 day to travel from b to b, then the shaded cones labeled A and B are of the same area. What this illustrates is one of the fundamentals of orbital mechanics. The closer an object is to the Sun ...
... In figure 9 we see a highly eccentric orbit. If it takes 1 day for the planet to travel from a to a, and 1 day to travel from b to b, then the shaded cones labeled A and B are of the same area. What this illustrates is one of the fundamentals of orbital mechanics. The closer an object is to the Sun ...
THE DYNAMIC TRIO - Siemens Science Day
... Solar System – The solar system includes the Sun and everything that orbits it. This includes eight planets and their natural satellites such as Earth’s Moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids. Sun – a star made up of 92% hydrogen and 7.8% helium, which is at th ...
... Solar System – The solar system includes the Sun and everything that orbits it. This includes eight planets and their natural satellites such as Earth’s Moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids. Sun – a star made up of 92% hydrogen and 7.8% helium, which is at th ...
astr100_finalexam
... (a) Which of the four planets should show the most seasonal variations over its orbit? Explain your reasoning. (b) Which of the four planets is the most likely still to be geologically active? Explain your reasoning. Planet Tilt (Deg) Radius (km) Density (g/cm3) Average Distance from Star (AU) A ...
... (a) Which of the four planets should show the most seasonal variations over its orbit? Explain your reasoning. (b) Which of the four planets is the most likely still to be geologically active? Explain your reasoning. Planet Tilt (Deg) Radius (km) Density (g/cm3) Average Distance from Star (AU) A ...
Introduction Worksheet 1
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
March 2017 - Shasta Astronomy Club
... In contrast to our sun, the TRAPPIST-1 star – classified as an ultra-cool dwarf – is so cool that liquid water could survive on planets orbiting very close to it, closer than is possible on planets in our solar system. All seven of the TRAPPIST-1 planetary orbits are closer to their host star than M ...
... In contrast to our sun, the TRAPPIST-1 star – classified as an ultra-cool dwarf – is so cool that liquid water could survive on planets orbiting very close to it, closer than is possible on planets in our solar system. All seven of the TRAPPIST-1 planetary orbits are closer to their host star than M ...
PH709-assn-answers
... 1. Suppose that two exoplanets are observed to transit the same star. They are both in circular orbits with an inclination of 90 degrees. One produces periodic dips with a period of 4 days and the other produces periodic dips with a period of 108 days. The decrease in luminosity caused by both exopl ...
... 1. Suppose that two exoplanets are observed to transit the same star. They are both in circular orbits with an inclination of 90 degrees. One produces periodic dips with a period of 4 days and the other produces periodic dips with a period of 108 days. The decrease in luminosity caused by both exopl ...
Quiz 1 Review
... Objects colliding forming a larger object. Electromagnetic force starts this process until the object is massive enough for gravity to take over. 2. What triggers star formation in these nebula and where do they come from? Supernovas….they come from the most massive stars exploding 3. Describe the b ...
... Objects colliding forming a larger object. Electromagnetic force starts this process until the object is massive enough for gravity to take over. 2. What triggers star formation in these nebula and where do they come from? Supernovas….they come from the most massive stars exploding 3. Describe the b ...
here
... • Pluto’s diameter is 2300 km. This is smaller than Jupiter’s large moons, and also Earth’s moon. ...
... • Pluto’s diameter is 2300 km. This is smaller than Jupiter’s large moons, and also Earth’s moon. ...
Phys 100 – Astronomy (Dr. Ilias Fernini) Review Questions for
... a radius of 6.4 cm. If you were to construct a scale model of the solar system using the rubber ball to represent the earth, what is the radius of a ball needed to represent the sun in your model? a. 7.0105 cm b. 7.0 cm c. 700 cm ...
... a radius of 6.4 cm. If you were to construct a scale model of the solar system using the rubber ball to represent the earth, what is the radius of a ball needed to represent the sun in your model? a. 7.0105 cm b. 7.0 cm c. 700 cm ...
Henry6SCI (H6SCIASTRO)
... Henry6SCI (H6SCIASTRO) 13. The ozone layer in Earth's upper atmosphere is important to living organisms because it A. absorbs harmful ultraviolet radiation from the Sun. B. breaks down harmful pollutants into normal atmospheric gases. C. supplies the oxygen living organisms require to carry on resp ...
... Henry6SCI (H6SCIASTRO) 13. The ozone layer in Earth's upper atmosphere is important to living organisms because it A. absorbs harmful ultraviolet radiation from the Sun. B. breaks down harmful pollutants into normal atmospheric gases. C. supplies the oxygen living organisms require to carry on resp ...
Comets and Asteroids Up-close
... Ceres: Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter and the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. ...
... Ceres: Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter and the only dwarf planet located in the inner solar system. It was the first member of the asteroid belt to be discovered when Giuseppe Piazzi spotted it in 1801. ...
Word version with live links
... is changing our view on that, as it is on the Moon which I have not mentioned here much because it is a satellite orbiting a planet even though it is not far off the size of Pluto which for some inexplicable reason has recently been downgraded from planet to object. Were the Plutonians advised of th ...
... is changing our view on that, as it is on the Moon which I have not mentioned here much because it is a satellite orbiting a planet even though it is not far off the size of Pluto which for some inexplicable reason has recently been downgraded from planet to object. Were the Plutonians advised of th ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.