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... direction of swing) of the Foucault pendulum indicates that...... The earth is rotating ...
We live in a solar system that consists of a star we call the Sun and
We live in a solar system that consists of a star we call the Sun and

... Comets Balls of dusty ice that orbit the Sun. Galaxy A catherine wheel made up from billions of stars which the Sun is one. Meteorite Pieces of rock or metal which strike Earth’s atmosphere. Eclipse When the Moon blocks the sunlight to the Earth (Solar Eclipse) or when the Earth blocks the sunlight ...
Distances in Space
Distances in Space

... Mars is 230 000 000 km, from the sun, or approximately 1.5 a.u. from the Sun. So Mars is 1.5 times as far from the sun as Earth is from the sun. ...
Day 1 Notes
Day 1 Notes

... The Greek philosopher Aristarchus (312-230 BC) Sun ...
Used for stars w/in a few hundred LY
Used for stars w/in a few hundred LY

... Scientists do not want to work with large numbers, so they make up new units to measure distances in space with. The two units used in astronomy are: ...
Objectives: Learn what units scientists measure distances in space
Objectives: Learn what units scientists measure distances in space

... Scientists do not want to work with large numbers, so they make up new units to measure distances in space with. The two units used in astronomy are: ...
distmeasures
distmeasures

... ASTRONOMICAL DISTANCES As you may have guessed in your answer to the previous question, the basic units of distance you use everyday can be unwieldy when describing the distances to celestial objects. You will not become familiar with some common astronomical distances measures. In the solar system, ...
DISTANCE MEASURES EXERCISE The goal of this exercise is to
DISTANCE MEASURES EXERCISE The goal of this exercise is to

... ASTRONOMICAL DISTANCES As you may have guessed in your answer to the previous question, the basic units of distance you use everyday can be unwieldy when describing the distances to celestial objects. You will not become familiar with some common astronomical distances measures. In the solar system, ...
Determining Distances in Astronomy
Determining Distances in Astronomy

Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

Study Guide for Earth/ Space Science Test 1. Rotation – The Earth
Study Guide for Earth/ Space Science Test 1. Rotation – The Earth

... 5. Seasons – opposite in hemispheres and caused by the tilt toward or away from the sun and the direct angle of sunlight hitting the area. Also caused by revolution. 6. Lunar – Moon – natural satellite – moon cycle is about 28 days long. Moon means month. Be able to identify phases of moon 7. Solar ...
In Our Sky
In Our Sky

SECTION 8:  STARS- OBSERVING CONSTELLATIONS INTRODUCTION
SECTION 8: STARS- OBSERVING CONSTELLATIONS INTRODUCTION

... A light year is a unit of measure for distance in space and equals the distance light travels in 1 year. Light travels 300,000 km (186,000 miles) per second. It takes 8 ½ minutes for light to reach us from our Sun and 4.5 light years for light to reach us from the next closest star, Centauri Proxima ...
Astronomy Unit Study Guide
Astronomy Unit Study Guide

The Sun: Home Star
The Sun: Home Star

... • Local “lab” for testing ideas about the physics of stars • Energy source for most life on earth ...
07 September: The Solar System in a Stellar Context
07 September: The Solar System in a Stellar Context

... The fastest anything can travel is speed of light = c = 2.9979E+08 meters/sec Distance to Sun = 1 au = 1.496E+11 meters (see Appendix 1), so light travel time from Sun is t=d/c =1.496E+11/2.9979E+08 = t=499.02 sec A little over 8 minutes ...
Solar System - Physics Rocks!
Solar System - Physics Rocks!

... Kepler’s 1st Law: Planets will orbit in elliptical orbits with the Sun at one of the focii Eccentricity: a measure of how elliptical an orbit is. Venus is the least eccentric planetary orbit ...
Name Period ______ Astronomy Unit Study Guide 1. _____
Name Period ______ Astronomy Unit Study Guide 1. _____

Scale Model of the Solar System
Scale Model of the Solar System

Astronomy From Å to ZZ — Howard L. Cohen
Astronomy From Å to ZZ — Howard L. Cohen

... January 1999 with the letter a, is alphabetical but uses successive letters for each month’s entry. (We will return to the letter a after twenty-six months.) Word of the Month for April 2000 parsec (symbol pc) A basic unit of stellar distance (like a mile or kilometer) used in professional astronomy ...
Astronomy - Earth Systems A
Astronomy - Earth Systems A

... Used geometry to calculate the circumference of the Earth ...
What`s a Parsec? - The Sky This Week
What`s a Parsec? - The Sky This Week

... seeing the star as it looked 8 years and 7 months ago. It could disappear today (highly unlikely), and you wouldn’t see it disappear until 8 years and 7 months from now! In the solar system—which is much smaller than a light year—astronomers like to use the astronomical unit as the distance unit of ...
Quantity Symbol Value One Astronomical Unit 1 AU 1.50 × 10
Quantity Symbol Value One Astronomical Unit 1 AU 1.50 × 10

... 3. A common unit of distance in Astronomy is a parsec. 1 pc ' 3.1 × 1016 m ' 3.3 ly (a) Explain how such a curious unit of measure came to be defined. Why is it called parsec? (b) What is the distance to the nearest stars and how was this distance measured? 4. Describe qualitatively what is the prec ...
Fun Facts: Sunshine
Fun Facts: Sunshine

... The sun is the largest object in the solar system. In fact, it is so big that over one million Earths could fit inside it! The planets in our solar system include Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus and Neptune. The sun is responsible for our weather because it heats the earth uneve ...
Distances in Space
Distances in Space

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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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