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Our Solar System ppt
Our Solar System ppt

... revolves around a planet or dwarf planet (or an asteroid) As of 2008, there are 176 confirmed moons in our solar system Most are located around the outer planets http://earthsky.org/space/video-amazingmoons?utm_source=EarthSky+News&utm_campaign=de0c85 0902EarthSky_News&utm_medium=email&utm_term=0_c6 ...
Star/Sun/Spectral Analysis - ppt
Star/Sun/Spectral Analysis - ppt

... • Consists of a layer of glowing gas (300 miles thick) which radiates most of the _____________ we see. light ...
WORD - hrsbstaff.ednet.ns.ca
WORD - hrsbstaff.ednet.ns.ca

... for Earth of about 42,000 kilometers. This is remarkably close to the modern value of 40,000 kilometers. 53. Describe how Aristarchus determined the relative sizes of the Earth, Moon and Sun. From his observations of how long the Moon takes to move through Earth’s shadow during a lunar eclipse, Aris ...
TOEFL Now begin work on the questions. 1. The North
TOEFL Now begin work on the questions. 1. The North

... 19. Sirius, the Dog Star, is the most brightest star in the sky with an absolute magnitude about A B twenty-three times that of the Sun. B D ...
PHS 111 Test 3 Review Chapters 26-28
PHS 111 Test 3 Review Chapters 26-28

... curvature in the shape of spacetime. force of attraction that exists between two objects. effects of the graviton particle. curvature of space caused by objects reaching the speed of light. "Local observations made in an accelerated frame of reference cannot be distinguished from observations made i ...
PHS 111 Test 3 Review Chapters 26-28
PHS 111 Test 3 Review Chapters 26-28

... curvature in the shape of spacetime. force of attraction that exists between two objects. effects of the graviton particle. curvature of space caused by objects reaching the speed of light. "Local observations made in an accelerated frame of reference cannot be distinguished from observations made i ...
Cosmic Distance Ladder Terrence Tao (UCLA)
Cosmic Distance Ladder Terrence Tao (UCLA)

... He reasoned that if one wanted to compute the orbit of Mars precisely, one must first figure out the orbit of the Earth. ...
Chapter 1
Chapter 1

... • The Earth is closest to the Sun in January, which is winter in the northern hemisphere • Therefore, the seasons cannot be caused by the Sun’s proximity to the Earth • The Earth’s rotation axis is tilted 23.5º from a line perpendicular to the Earth’s orbital plane ...
section 4 powerpoint
section 4 powerpoint

Allison McGraw - WordPress.com
Allison McGraw - WordPress.com

... 10,000 of these in Low Earth Orbit (we can't see the higher ones). We see these little "moving stars" because they reflect sunlight. ...
6.E.1.2 Credit Recovery
6.E.1.2 Credit Recovery

... last about 13 Earth days. The planet is in a region the scientists call The Goldilocks Zone. This zone is at a distance from Gliese 581 where temperatures on the planet range from 0 C and 40 C. These temperatures suggest that the planet has some conditions similar to those on Earth. ...
Homework Packet Circular Motion Worksheet #1
Homework Packet Circular Motion Worksheet #1

... about 2x108 years. A reasonable estimate for the mass of the galaxy may be obtained by considering this mass to be concentrated at the galactic center with the sun revolving around it like a planet around the sun. a. ...
Chapter 04
Chapter 04

Astronomy Through the Ages: 2 Middle ages through Renaissance
Astronomy Through the Ages: 2 Middle ages through Renaissance

... There are claims that he had introduced a heliocentric model of the universe with planets orbiting in elliptical orbits around the sun. – But none of those writing has survived. His work is known only though references by other Indian and Arabic astronomers. ...
The Origin of Modern Astronomy(Seeds)
The Origin of Modern Astronomy(Seeds)

... 9. Why did the model of the universe proposed by Copernicus gain support soon after its publication? a. It more accurately predicted the position of planets. b. It gave a better explanation for the phases of the Moon. c. It was a more elegant explanation of retrograde motion. d. The old system of Pt ...
Navigating by the Stars
Navigating by the Stars

... succeeded in using a scientific method to create a simple, elegant, and accurate model to describe the motion of planets around the Sun, ...
Slide 1
Slide 1

... Source: NASA ...
The Sun: Our Closest Star and a Nuclear Fusion Reactor
The Sun: Our Closest Star and a Nuclear Fusion Reactor

... Corona. This region is where the hot gases are flowing out into space. It is the bright gaseous edge of the Sun only visible during a solar eclipse. Gases that flow further out into space from the corona are called the solar wind. ...
Friends newsletter december 2011
Friends newsletter december 2011

... To finish off this newsletter, here’s an interesting tidbit about the nature of time. While our units for measuring time seem to be here to stay, the way we measure time has changed significantly over the centuries. The Ancient Egyptians used sundials and waterclocks, as did several civilisations af ...
2011_JCB_SS_Key_1_
2011_JCB_SS_Key_1_

... In the 12 hours time that the Earth was rotating or spinning East, the Moon was also making it’s own revolution East around the Earth. 12 hours later when the spot on the Earth should again be under a high tide bulge, the Moon is farther to the East, so Earth must rotate another 45 minutes East, for ...
Tutorial questions:
Tutorial questions:

What is the sun?
What is the sun?

... to the other side of its orbit. That part of the earth is now farther away from the sun and has it winter and the other part has its summer, Between wummer and winter, both halves of the earth are the same distance from the sun. Then they have spring and autumn. As the earth goes round in its orbit, ...
Friends newsletter december 2011
Friends newsletter december 2011

... To finish off this newsletter, here’s an interesting tidbit about the nature of time. While our units for measuring time seem to be here to stay, the way we measure time has changed significantly over the centuries. The Ancient Egyptians used sundials and waterclocks, as did several civilisations af ...
Our Solar System
Our Solar System

... • small, rocky body that revolves around the Sun Meteoroids – in space (like asteroids), but usually smaller Meteors – (meteor shower); a bright streak of light caused by the rock burning as it streaks through the atmosphere ...
Schrödinger`s Equation derived from Newton`s
Schrödinger`s Equation derived from Newton`s

... The angular velocity of Mercury around the Sun is: θ m' = v m /r m And δ θ’0 = (v m /r m) (180/π) (3600) (26526/Tm); Tm = 88 days And δ θ’0 = 70.75; v m = Mercury orbital velocity around the Sun And v m = 48.1 km/sec; r m = Mercury - Sun distance If Planet Mercury angular speed is measured for plane ...
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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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