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Introduction and some basic concepts
Introduction and some basic concepts

... The distance light travels in one year is the unit called the light-year. The most distant quasars are billions of light-years away. We are observing them as they appeared billions of years ago. ...
Space 8.1 notes
Space 8.1 notes

...  Earth is the fourth largest planet in the solar system. Earth is a planet composed of rock and supports life. MOONS  Satellites are celestial bodies that travel around a planet or dwarf planet in a closed path called an orbit. The moon is an example of a satellite.  Not all planets have moons, b ...
Gravity
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Astronomy, Mr - Mentor Public Schools
Astronomy, Mr - Mentor Public Schools

... UNIT 1—Intro to Astronomy Introduction, guidelines, What is Astronomy? Why study astronomy? Is astrology related to astronomy? The Early Astronomers Backyard Astronomy #1--Constellations Astronomy during the middle ages—the rise of science. Science, Technology and Society-- Copernicus, Brahe, Kepler ...
Assessment - hrsbstaff.ednet.ns.ca
Assessment - hrsbstaff.ednet.ns.ca

Assessment - hrsbstaff.ednet.ns.ca
Assessment - hrsbstaff.ednet.ns.ca

The Solar System
The Solar System

... satellites, which go around planets ...
science - TCDSB.org
science - TCDSB.org

... The Earth rotates once every 24 hours. Each time the Earth rotates we have one day and one night. When we are on the sun side of the earth, we have daylight. When we rotate away from the sun, we have night. ...
File
File

... Unit 7 Study Guide 1. Which shape describes a planet’s orbit? Circular 2. Why is Venus hotter than Mercury? The atmosphere traps solar energy 3. How are the out planets similar? They are known as the “Gas Giants” because they are made of gases found on Earth 4. What is Pluto known as? Dwarf Planet 5 ...
Some Important Introductory Concepts
Some Important Introductory Concepts

... “centimeters” or “inches” for everyday objects, “light years” or “parsecs” for stars, “megaparsecs” for galaxies.  This is really nothing--you just have to get used to it! Keep thinking about it for a while and soon it will be second nature. It will help if you associate each new unit with some obj ...
Review Handout - Sturgeon Moodle
Review Handout - Sturgeon Moodle

... we discussed in class for the unit exam. Take the time to try to answer these questions yourself before you use your notes or other sources to find the answers. Before beginning your review, how do you feel about this units “I Can” statements? Objective I can recognize that the Sun and stars emit th ...
Name Class Date Our Solar System The solar system consists of our
Name Class Date Our Solar System The solar system consists of our

... Earth’s Sun is an average-sized star. The Sun is more than a million times greater in volume than Earth. The other stars we see in the night sky are like the Sun or even larger but are so far away that they look like tiny points of light. Distances between stars are vast compared to distances within ...
Distance and Luminosity (new 2012)
Distance and Luminosity (new 2012)

... Astronomical Unit, AU = average distance between Earth and Sun (1 AU=150 million km) Parsec, pc ...
The History of Astronomy
The History of Astronomy

...  Believed Heraclides’ geocentric model of the solar system to be correct  His model seemed to adequately explain the motion of the planets, but it was complicated. ...
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File

... regions of a huge cloud of gas and dust to collapse. The earliest stage of a star’s life cycle is called the: a. protostar. b. red giant. c. white dwarf. d. supernova. ...
File history of astronomy
File history of astronomy

... Kepler’s 3 Laws of Planetary Motion • Law 2 – Each planet revolves around the sun so that it sweeps over equal areas in equal time intervalstherefore planets travel faster as they near the sun ...
Life in the Universe - University of Georgia
Life in the Universe - University of Georgia

... meter), it is oftentimes more convenient to use different units  scale of planetary systems  A.U.  average distance between stars  parsec or light-year  AU = astronomical unit = average distance between Earth and the Sun 1 AU = 1.496×108 km ...
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Name: Orbits and Escape Velocity – Practice 1. A concrete block of

... holes might still wander through the universe. If one with a mass of 1.0 × 1011 kg (and a radius of only 1.0 × 10-16 m) reached Earth, at what distance from your head would its gravitational pull on you match that of Earth's? ...
Why We Have Seasons
Why We Have Seasons

... (combined with Earth’s revolution around the Sun) * ARNT caused by the changing distance from the Earth to the Sun that results from the shape of Earth’s orbit. – axis is tilted –revolve around the sun The Ecliptic - Straight path on the celestial sphere the sun traces - A plane (described by earths ...
Solar System Unit Review - Parma City School District
Solar System Unit Review - Parma City School District

... • B. More stars are in the center than on the outer edge. • C. Most of the stars are near the outside of the galaxy. • D. The stars are spread throughout the galaxy in bands ...
Washington State Standards Substantiated By STC Gems Kit: Space
Washington State Standards Substantiated By STC Gems Kit: Space

Ancient Civilizations Ancient Greek Astronomers Ancient Greek
Ancient Civilizations Ancient Greek Astronomers Ancient Greek

... – relative size of earth and moon from lunar eclipse – relative size of moon and sun from solar eclipse • knew sun was much bigger than earth • presumably this led him to heliocentric model ...
Solar system power point
Solar system power point

... 3. If the Sun has a strong enough gravitational pull to keep planets in orbit around them, why do the planets not get pulled into the Sun? ...
Kepler`s Laws wkst
Kepler`s Laws wkst

... 8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole. Suppose the star’s orbit has a mean radius of 2.30  1010 m and a period of 6.47 days. What is the mass of the black hole? How many times larger is the mass of the black ...
Gravity in the Solar System Quiz - cK-12
Gravity in the Solar System Quiz - cK-12

... 9) If you are on the top of a mountain and drop an apple, it will fall to the ground, even though the apple is gravitationally attracted to you. Why? a) Earth is larger and has a much stronger gravitational pull. b) Apples always fall down. c) Centrifugal forces pull the apple to the Earth and that ...
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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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