Instrumentation for Cosmology
... The spiral arms are an illusion. They trace the passage of a ‘sound wave’ through the disk of the galaxy ...
... The spiral arms are an illusion. They trace the passage of a ‘sound wave’ through the disk of the galaxy ...
Stars and gravity - Hyde Park 3rd Grade
... Scientist’s Journal: “The Sun’s Position” Illustrate the position of the Sun in the sky in the early morning, at noon, in the afternoon, and in the late evening. Track the Sun’s position by looking at the shadows it casts. Explain why the Sun is only out in the daytime, and what happens to the Sun a ...
... Scientist’s Journal: “The Sun’s Position” Illustrate the position of the Sun in the sky in the early morning, at noon, in the afternoon, and in the late evening. Track the Sun’s position by looking at the shadows it casts. Explain why the Sun is only out in the daytime, and what happens to the Sun a ...
Universal Gravitation
... (Creepy looking guy to the right) Danish astronomer Tycho Brahe (1546-1601) spent years cataloguing the stars and planets with great accuracy. His assistant Johannes Kepler (1571-1630) put his observations to good use. He developed three important laws of astronomy. His first law describes the shape ...
... (Creepy looking guy to the right) Danish astronomer Tycho Brahe (1546-1601) spent years cataloguing the stars and planets with great accuracy. His assistant Johannes Kepler (1571-1630) put his observations to good use. He developed three important laws of astronomy. His first law describes the shape ...
Chapters 6 and 8: Some Additional Forces
... • If a launch speed is great enough, there comes a point at which the curve of the trajectory and the curve of the earth are parallel. • In this case, the projectile “falls” but it never gets any closer to the ground! • Such a trajectory around a planet or star is called an “orbit”. ...
... • If a launch speed is great enough, there comes a point at which the curve of the trajectory and the curve of the earth are parallel. • In this case, the projectile “falls” but it never gets any closer to the ground! • Such a trajectory around a planet or star is called an “orbit”. ...
Lecture 1: Nucleosynthesis, solar composition, chondrites, volatility
... eventually planets? 5) What evidence is available from meteorites? ...
... eventually planets? 5) What evidence is available from meteorites? ...
Planetary Properties
... Planets move around the Sun in closed paths, referred to as orbits. Certain properties of a planet’s orbit can affect the probability of whether or not life will develop. The properties of orbital motion have been well understood ever since Johannes Kepler (1571 - 1630) first proposed his three laws ...
... Planets move around the Sun in closed paths, referred to as orbits. Certain properties of a planet’s orbit can affect the probability of whether or not life will develop. The properties of orbital motion have been well understood ever since Johannes Kepler (1571 - 1630) first proposed his three laws ...
Exam #1 Review
... the line of sight from the Earth to the object being viewed. 17. You should be able to explain the observed motion of a planet when it is viewed from ...
... the line of sight from the Earth to the object being viewed. 17. You should be able to explain the observed motion of a planet when it is viewed from ...
etlife_douglas_ewart_short
... One of Jupiter’s moons, Europa, is another candidate The icy crust of the moon is covered in ‘cracks’ due to the tides, and beneath the crust we think friction has melted the ice, resulting in a ...
... One of Jupiter’s moons, Europa, is another candidate The icy crust of the moon is covered in ‘cracks’ due to the tides, and beneath the crust we think friction has melted the ice, resulting in a ...
Study Guide: Chapters 32-‐34 FROSH CHAPTER 32 1. What is
... 59. Is the Big Bang theory still accepted by astronomers? Does it explain the expanding universe and other observations in the sky? Is it consistent with the idea that the universe is a fe ...
... 59. Is the Big Bang theory still accepted by astronomers? Does it explain the expanding universe and other observations in the sky? Is it consistent with the idea that the universe is a fe ...
JOHN FLAMSTEED 1646-1719
... • MICHAEL HART, AN OXFORD FELLOW IN POLITICS, RANKS NEWTON 2ND ONLY TO MOHAMMED AS THE MOST INFLUENTIAL PERSON IN HISTORY. ...
... • MICHAEL HART, AN OXFORD FELLOW IN POLITICS, RANKS NEWTON 2ND ONLY TO MOHAMMED AS THE MOST INFLUENTIAL PERSON IN HISTORY. ...
Astronomy Syllabus - Jefferson Forest High School
... Students will complete all work individually and on time. All homework is due when the tardy bell rings. If it is not turned in at that time, it is considered to be late. Work for other classes may NOT be completed in my classroom. All other work will be confiscated and returned at the END of class. ...
... Students will complete all work individually and on time. All homework is due when the tardy bell rings. If it is not turned in at that time, it is considered to be late. Work for other classes may NOT be completed in my classroom. All other work will be confiscated and returned at the END of class. ...
Mercury_Orbit_Lab_1_(better_than_2)
... How do we know what the orbit of a planet is like? At first glance this appears to be a difficult question, but in many cases it is surprisingly easy to derive an orbit from basic observations. In this exercise you will use a set of simple observations, which you could have made yourself, to discove ...
... How do we know what the orbit of a planet is like? At first glance this appears to be a difficult question, but in many cases it is surprisingly easy to derive an orbit from basic observations. In this exercise you will use a set of simple observations, which you could have made yourself, to discove ...
Earth Science Chap.2 Sect. 2
... Precession: a circular motion of the earth’s axis which causes the change relative to distant stars. Caused by forces acting on a spinning body. In the earth’s case, it is the gravitational pull exerted by the moon, sun, and other planets. Causes the earth’s axis to move slowly in a circle. This cir ...
... Precession: a circular motion of the earth’s axis which causes the change relative to distant stars. Caused by forces acting on a spinning body. In the earth’s case, it is the gravitational pull exerted by the moon, sun, and other planets. Causes the earth’s axis to move slowly in a circle. This cir ...
Voyage: A Journey Through Our Solar System Grades K
... The Sun is a star. Why does it look so big and bright compared to the other stars? Because it is much closer than the other stars, not because it is bigger—it is only an average sized star. Did the position of Mercury surprise you? Mercury orbits the Sun faster than any other planet (once every 88 d ...
... The Sun is a star. Why does it look so big and bright compared to the other stars? Because it is much closer than the other stars, not because it is bigger—it is only an average sized star. Did the position of Mercury surprise you? Mercury orbits the Sun faster than any other planet (once every 88 d ...
Earth and Space Science in Grades 6
... complete the unit, and Student Learning Objectives. Sometimes the storylines in the model curriculum units have been modified from the original narratives in this document. ...
... complete the unit, and Student Learning Objectives. Sometimes the storylines in the model curriculum units have been modified from the original narratives in this document. ...
DO IT YOURSELF SIMPLE TEMPLATE FORMAT
... what you know about each one. This activity will look specifically at planets, which are relatively large objects circling the Sun. You will run a model and be able to change a planet's mass, velocity and position, so that you can see what effect these factors have on its orbit. Before you start the ...
... what you know about each one. This activity will look specifically at planets, which are relatively large objects circling the Sun. You will run a model and be able to change a planet's mass, velocity and position, so that you can see what effect these factors have on its orbit. Before you start the ...
The Sun and the Solar System
... If you draw lines from your eye to each of two stars, the angle between the lines is the angular distance between the two stars. Note: here we refer to the distance projected to the surface of an imaginary celestial sphere centered at the observer, as if the two objects were in this same spherical s ...
... If you draw lines from your eye to each of two stars, the angle between the lines is the angular distance between the two stars. Note: here we refer to the distance projected to the surface of an imaginary celestial sphere centered at the observer, as if the two objects were in this same spherical s ...
Name
... degrees, distance from sun about 30 au. Set the time step to one year. Make the time go forward and notice which way the planets move (______________________). By the way, what is 1 au? ______________________________ Return to Earth, please. Unlock the sun. B. What did the solar system look like on ...
... degrees, distance from sun about 30 au. Set the time step to one year. Make the time go forward and notice which way the planets move (______________________). By the way, what is 1 au? ______________________________ Return to Earth, please. Unlock the sun. B. What did the solar system look like on ...
The student will understand the hierarchical relationships of objects
... Identify the relationship between a planet’s distance from the sun and the length of its year. Identify the relationship between a planet’s distance from the sun and its average surface temperature. Identify the different orbit shapes of astronomical bodies. ...
... Identify the relationship between a planet’s distance from the sun and the length of its year. Identify the relationship between a planet’s distance from the sun and its average surface temperature. Identify the different orbit shapes of astronomical bodies. ...
Homework 1 – Exercise 1 1/9
... In 1672, an international effort was made to measure the parallax angle of Mars at the time of opposition, when it was closest to Earth. Consider two observers who are separated by a baseline equal to Earth’s diameter. If the difference in their measurements of Mars’s angular position is 33.6’’. Wha ...
... In 1672, an international effort was made to measure the parallax angle of Mars at the time of opposition, when it was closest to Earth. Consider two observers who are separated by a baseline equal to Earth’s diameter. If the difference in their measurements of Mars’s angular position is 33.6’’. Wha ...
1 HoNoRS227 Examination #3 Name
... Because the star is so close that we should have received radio signals from the planet years ago. C Because the radio signals cannot penetrate the Earth’s atmosphere from outer space. D Because we are able to hear radio waves, this should have been discovered long ago. *E Because massive blue giant ...
... Because the star is so close that we should have received radio signals from the planet years ago. C Because the radio signals cannot penetrate the Earth’s atmosphere from outer space. D Because we are able to hear radio waves, this should have been discovered long ago. *E Because massive blue giant ...
Solar System
... Motions of the Planets: Direction of orbit, spin, moons When viewed from a location above the North Pole, all of the planets orbit around the sun in a counterclockwise direction. When viewed from a location above the North pole, 6 of the 9 planets rotate (spin) in a counterclockwise direction; one ...
... Motions of the Planets: Direction of orbit, spin, moons When viewed from a location above the North Pole, all of the planets orbit around the sun in a counterclockwise direction. When viewed from a location above the North pole, 6 of the 9 planets rotate (spin) in a counterclockwise direction; one ...
ASTR 340 - TerpConnect
... The next question was how large it is and how much electric charge each electron carries? The clearest answer came from an experiment conducted by Robert Millikan of the University of Chicago, in the early twentieth century. Millikan made a particularly simple experiment. An atomizer created a mist ...
... The next question was how large it is and how much electric charge each electron carries? The clearest answer came from an experiment conducted by Robert Millikan of the University of Chicago, in the early twentieth century. Millikan made a particularly simple experiment. An atomizer created a mist ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.