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ASTRO VOLUME 2 - Global Friendship Through Space Education
ASTRO VOLUME 2 - Global Friendship Through Space Education

... The Solar System’s Biggest Junkyard On a clear night, you can look in the sky and see the moon and stars. And, even though you cannot see it, you are also looking at the largest junkyard in the solar system. Higher than the highest clouds but much closer than the moon, the bulk of the junkyard stret ...
Octobers Meeting - Tauranga Astronomical Society
Octobers Meeting - Tauranga Astronomical Society

... Two points to note. This was the first time mankind was able to record such an event from eyewitness accounts and also to be observed by the scientific instruments of the day. The second and pause to ponder this – if the incoming object was 4 ½ hours later in arriving and earth on its daily rotate ...
The Solar System Information Pack
The Solar System Information Pack

... sun (and the new planet that has been found!).  The relative sizes of the planets and their distance from the sun.  The sun is a star at the centre of our solar system.  The sun, earth and moon are approximately spherical bodies.  That some of the planets have moons and the number of moons for e ...
Astro history 1
Astro history 1

... Earth’s orbiting of the Sun The nearest stars are much farther away than the Greeks thought. So the parallax angles of the star are so small, that you need a telescope to observe them. ...
Earth Science SOL Review
Earth Science SOL Review

stellarparameter1 - Physics and Astronomy
stellarparameter1 - Physics and Astronomy

... • Newton’s Second Law of Motion – The force applied to an object is equal to the mass of the object times the object’s acceleration. F = ma • Newton’s Third Law of Motion – For every force there is an equal and opposite reactionary force. F1 = -F2 ...
Basic Information about the Solar System Handout
Basic Information about the Solar System Handout

... Upon completion of this chapter, you will be able to classify objects within the solar system, state their distances of in terms of light-time, describe the Sun as a typical star, relate its share of the mass within the solar system, and compare the terrestrial and Jovian planets. You will be able t ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
Classifying Stars (pages 753–754) Key Concept: Characteristics

... from Earth does not look very bright. But the sun looks very bright because it is so close to Earth. ...
Chapter 2
Chapter 2

... 16. Ozone Signature. Suppose a powerful future telescope is able to take a spectrum of a terrestrial planet around another star. The spectrum reveals the presence of significant amounts of ozone. Why would this discovery strongly suggest the presence of life on this planet? Would it tell us whether ...
Copernicus, Kepler, Galileo, Newton
Copernicus, Kepler, Galileo, Newton

...  Planets appear to reverse motions at times.  Ptolemy explained motions in terms of orbits (epicycles) carried on a larger orbit (deferent). ...
Galaxies and the Universe
Galaxies and the Universe

... • the distance that light travels in one year in a vacuum, which is about 9.5 trillion kilometers (6 trillion miles) – The Milky Way Galaxy is about 100,000 light years in diameter ...
The Sun`s Energy Supply (PowerPoint version)
The Sun`s Energy Supply (PowerPoint version)

... Consider a dime, with a mass of 2.3 grams. (Or equivalently, simply pick up a pebble of that mass!) E = m c 2 tells us that this lump could (in principle) be converted to 2 x 10 14 Joules of energy. That would be enough to supply the complete energy needs of a city of a couple of million people -- f ...
The Sun`s Energy Supply (PDF version)
The Sun`s Energy Supply (PDF version)

Grade 5 Unit 6
Grade 5 Unit 6

... In this unit of study, students explore the effects of gravity and determine the effect that relative distance has on the apparent brightness of stars. They also collect and analyze data in order to describe patterns of daily changes in length and direction of shadows, day and night, and the seasona ...
Evolution and the Big Bang, ET Life Lec. 6, Jan 18, 2002
Evolution and the Big Bang, ET Life Lec. 6, Jan 18, 2002

... Well, yes, that's partly because of the radiation, but mainly it's because you're in Burns territory now! The Springfield Nuclear Power Plant dominates the landscape here, from its main office to its giant turbines to the cut-off valve that I once plugged with my ample frame, thus averting a nuclear ...
12 Celestial Bodies in our Solar System
12 Celestial Bodies in our Solar System

Winter Interim Assessment Review
Winter Interim Assessment Review

... • The solar system consists of the sun, the planets, their moons, and a variety of smaller objects. THE SUN • The sun is the center of the solar system , with many objects orbiting around it. • The force of gravity holds the solar system together. • Distances in the solar system are measured in astr ...
1 3 Formation of the Solar System
1 3 Formation of the Solar System

... How Did the Moon Form? Before scientists knew what the moon was made of, they had several different theories to explain how it formed. Some thought that Earth’s gravity trapped another object in the solar system. If this theory were correct, Earth and the moon would likely be made up of different ma ...
Chapter 03 Lecture-Notes (Covers Lectures 03 and 04)
Chapter 03 Lecture-Notes (Covers Lectures 03 and 04)

... largely correct the calendar for this effect. Other important features of the Earth’s orbit are: - The Earth’s orbit is shaped like an ellipse, or oval. - Perihelion occurs on or about January 3, when the Earth is closest to the sun. - Aphelion occurs on or about July 4, when the Earth is the farth ...
The Universe and Space Travel
The Universe and Space Travel

... —  Kepler-186f resides in the Kepler-186 system about 500 lightyears from Earth in the constellation Cygnus. The system is also home to four inner planets, seen lined up in orbit around a host star that is half the size and mass of the sun. ...
constellations
constellations

... Starting from due south, the average time taken for the Sun to appear to travel right around the sky and return to exactly due south is 24 hours. This is the Mean Solar Day. Starting from due south, the time taken for a star to appear to travel right around the sky and return to exactly due south is ...
The extragalactic universe and distance measurements
The extragalactic universe and distance measurements

... Sciences in DC. – Harlow Shapley argued for “local hypothesis” (idea that nebulae were nearby). – Heber Curtis argued for “island universe” hypothesis. ...
HERE - Gallopade International
HERE - Gallopade International

... for comets. Comets are space objects made of frozen ice and dust that orbit the sun. When a comet travels close the sun, some of the ice and dust melts and makes a long tail of dust behind the comet. Some of these “dirty snowballs” can be seen without a telescope, but most are too far away from the ...
Rotation
Rotation

... determines the amount of light reflected by the Moon. C. The season of the year determines the phase of the Moon. D. The closer the Moon is to Earth, the more light the Moon ...
Order of the Planets
Order of the Planets

... Using information in The Sun, verify whether the following statements are true or false. Check your answers in the book. List the page where you found the information that proves you are correct. ...
< 1 ... 181 182 183 184 185 186 187 188 189 ... 369 >

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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