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The sun, the earth, and the moon
The sun, the earth, and the moon

...  Earth cooled  Pieces of debris from collision were caught by ...
Lecture 17 Ptolemy on the Motion of the Earth
Lecture 17 Ptolemy on the Motion of the Earth

The Stars
The Stars

...  Telescopes magnify the appearance of some distant objects in the sky, including the moon and the planets. The number of stars that can be seen through telescopes is dramatically greater than can be seen by the unaided eye.  Planets change their positions against the background of stars.  Stars a ...
PARAMOUNT SCHOOL OF EXCELLENCE TIME AND SPACE
PARAMOUNT SCHOOL OF EXCELLENCE TIME AND SPACE

... Explain that we can use these powers of 10 to represent decimal places, too: a. 3.4 can be written as 3.4 x 100. b. 99.1 can be written as 9.9 x 101. c. 4,526 can be written as 4.526 x 103. Review the properties of exponents to make scientific notation even more useful: d. When multiplying two numbe ...
Gravity from the moon
Gravity from the moon

... • The planets revolve around the sun. • The moon revolves around the Earth. • Asteroids and comets revolve around the sun. 5. How is a comet different from an asteroid? • A comet is made of rock, dust and ice, while an asteroid is a large chunk or rock. Both orbit the sun. 6. Explain what a shooting ...
Lecture - Faculty
Lecture - Faculty

... • Right Ascension (RA) - similar to Earth longitude but for the sky; RA is measured Eastward starting from the Vernal Equinox • Declination (Dec) - similar to Earth latitude but for the sky; Dec is positive in the North Celestial Sphere and negative in the South • Celestial Poles - projection of Nor ...
Physics Problems
Physics Problems

... 12. When a car turns on a banked curve, two other centripetal forces are applied to the car (other than friction). Draw a freebody diagram to help identify these forces (each will have a centripetal component). 13. Does the force of gravity do work on the moon as it orbits the earth (assume a circul ...
Origin of Modern Astronomy
Origin of Modern Astronomy

friends of the planetarium newsletter - june 2010
friends of the planetarium newsletter - june 2010

Objective 10 Study Guide
Objective 10 Study Guide

... How often do large objects that could cause global catastrophe strike Earth? On average, every few hundred thousand years. ...
PHYS 200 - Understanding the Universe
PHYS 200 - Understanding the Universe

... deals with basic concepts in Astronomy in a descriptive way without using calculus. The students after completing this course should be able to: • grasp how physical principles are applied to understand cosmic objects. • Gain appreciation for science and scientific methods and to realize that progre ...
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Chapter 8 Survey of Solar Systems
Chapter 8 Survey of Solar Systems

... The solar system formed from a cloud of cold gas and dust called the solar nebula about 4.6 ...
ASTRONOMY 120
ASTRONOMY 120

“The Southern Cross”
“The Southern Cross”

... and astronomers used this knowledge to their advantage. This enabled them to calculate eclipse events, write equations of parallax, and confirm earlier estimates of Earth’s circumference. Astronomers were also able to establish tables of the times of rising and setting of planets, conjunctions among ...
Origins of the Earth Video Notes
Origins of the Earth Video Notes

... had moved 125 miles off the Canadian coast. Its movement is picking up speed. It’s been about 10km a year. Now it’s 40km per year. It’s now moving faster and it might move to Siberia in another 40 years. Iron core – swirling ball of molten iron. We need that magnetic field – because of the electrica ...
Chapter 2: Perihelion of Mercury`s Orbit
Chapter 2: Perihelion of Mercury`s Orbit

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previous mid-term () - Department of Physics and Astronomy
previous mid-term () - Department of Physics and Astronomy

light year
light year

... – Space-time is the idea that “time” is not separate from space. • In other words, it’s a little like adding “time” to a coordinate system that also features latitude and longitude. • Space-time is therefore a four-dimensional object. ...
Chapter 3 - Nicholls State University
Chapter 3 - Nicholls State University

... Earth and the Moon have a gravitational force between them. The mass of the Moon is 1.2% of that of the Earth. Which statement is incorrect? A. The force on the Moon is much larger than that on Earth. B. The forces are equal size, even though the masses are different. C. The Moon has a larger accel ...
Chapter 5 and 6 Study Guide
Chapter 5 and 6 Study Guide

... 19. What is precipitation? Water that falls to the ground from the atmosphere. 20. A powerful storm that forms over land and looks like a funnel is a tornado. 21. It is raining outside and the temperature has suddenly dropped to 25 degrees Fahrenheit. What do you think will happen and why? The rain ...
Answers - ddns.net
Answers - ddns.net

... 1. Planets do not move around their parent star while the star remains motionless; instead a star and its planet move around a common center of mass. Suppose that a star has mass M and a planet has mass m, and that the star is much more massive than the planet (mathematically represented as M À m). ...
Stars, Planets, Moons, too Doing the Solar System
Stars, Planets, Moons, too Doing the Solar System

... The star nearest Earth is the Sun, It provides energy for everyone. The energy comes in the form of heat and light, It’s a ball of gases that burns just right. ...
Document
Document

... It’s light out (twilight) in the morning when the Sun is 18o below the horizon and stays light in the evening until the Sun is 18o below the horizon Effect is most noticeable at the poles – complete darkness for only 3 months (rather than 6 months) ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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