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... piece of matter in space that is visible when it falls into Earth’s atmosphere. Background source: 1Wyrmshadow1 website ...
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File

... rotation spectroscope star sunspot ...
Our Solar System - Eastern Wayne High
Our Solar System - Eastern Wayne High

... Our Dwarf Planet, Pluto Today, Pluto is called a "dwarf planet." A dwarf planet orbits the sun just like other planets, but it is smaller. A dwarf planet is so small it cannot clear other objects out of its path. Pluto was not really a planet because of its size and location in space ...
Solar System PowerPoint
Solar System PowerPoint

... escape velocity vs. temperature graph to make a supportable prediction about the atmosphere of each mystery planet.  Write your predictions and supporting evidence in ...
Click here
Click here

... The speed of light is approximately 300,000 kilometers per second (about 186,000 miles per second) ...
Solar System
Solar System

... A “superior” planet is one who’s orbit is outside the earth’s orbit. The superior planet moves slower around its orbit than the earth since it is further from the sun and so has to move slower to prevent it from escaping out into space. The diagram on the next slide is from the perspective as being ...
The Solar System - Georgia Standards
The Solar System - Georgia Standards

... telescope has a screen which blocks the intense light emitted from the Sun. • The Sun may be the center of the solar system, but it is not the center of our galaxy. The Sun is actually located closer to the edge of the Milky Way galaxy than the center. Planets are celestrial bodies that orbit a star ...
The Earth in Space
The Earth in Space

... cfa-www.harvard.edu/seuforum/mtu/MTUcosmology.ppt ...
Solar System Astrometry
Solar System Astrometry

Final Exam Earth science
Final Exam Earth science

... Main sequence stars. Hertzsprung-Russell diagram, a graph used by astronomers. It shows a relationship between surface temperature and brightness. Most stars (90%) form a diagonal band called the main sequence stars. In the main sequence, surface temperature increases as brightness increases. Our su ...
The most accepted theory of the origin of the solar system is the
The most accepted theory of the origin of the solar system is the

... Stage Three 6 – Temperature differences between the warm inner regions and the cool outer regions of the disk determined what kinds of material could condense to form planets – this is referred to as the temperature-condensation sequence. (Condensation is the formation of solid or liquid particles f ...
Sample multiple choice questions for Exam 3
Sample multiple choice questions for Exam 3

... 6) Venus and Earth are similar in size and mass. they are sometimes called "sister planets", but they differ strikingly in their: a) rotation b) atmospheric surface pressure c) surface temperatur d) atmospheric chemical composition e) all of the above 7) What process is responsible for starting the ...
NAME DATE Worksheet 62: Ellipse and Moon STRIVE FOR 85!!!!
NAME DATE Worksheet 62: Ellipse and Moon STRIVE FOR 85!!!!

PSC101-lecture12
PSC101-lecture12

... • It is by far the largest object in the Solar System. 700 times more massive than all of the other objects in the Solar System put together. • It is composed mostly of Hydrogen and Helium gas and traces of many other elements. • The Sun spins on its axis counter-clockwise. ...
jupiterwVideo the finsh 1
jupiterwVideo the finsh 1

... The Red Spot is twice the size of Earth and has been raging for at least 300 years. It one if several storm on Jupiter. Red Spot ...
Analysis of Planet Data
Analysis of Planet Data

... complete your Planet Data Chart carefully. It is worth 10 points. Use accurate and neatly presented data to complete the questions and tables. Remember to use like units when comparing data. The data sheets are handed in You may use these sheets as worksheets or rough copies, but do NOT hand them in ...
8th Grade Science The Solar System Chapter 12 Study Guide The
8th Grade Science The Solar System Chapter 12 Study Guide The

... 1. Mercury has no atmosphere 2. What planet has the hottest temperatures and why? 3. Mars has a red color due to soil containing iron oxide (rust) 4. Saturn has the lowest density 5. What planet rotates vertically and why? ...
asteroids - WordPress.com
asteroids - WordPress.com

...  The Hilda or Hildian asteroids are a dynamical group of asteroids in a 3:2 orbital resonance with Jupiter.  Hilda’s move in their elliptical orbits so that their aphelia put them opposite Jupiter, or 60 degrees ahead of or behind Jupiter at the L4and L5 Lagrangian points.  Over three successive ...
Benchmark One Study Guide: Science Benchmark Wed
Benchmark One Study Guide: Science Benchmark Wed

... 1. What mneumonic device helps you remember the order of the planets, closest to the Sun? 2. How do the inner or terrestrial planets differ from the outer planets in terms of composition (what the planets are made up of) and size? 3. Which planets have a gravity greater/stronger than Earth? 4. What ...
Untitled - IES Bachiller Sabuco
Untitled - IES Bachiller Sabuco

... across, they're no more than 1.5 kilometers. Their impressive appearance, there's really very little material in the rings. If the rings were compressed into a single body it would be no more than 100 km across. Saturn is the planet that has more comets near his orbit. ...
Astrobiology News for July 2013: What Makes a Planet Habitable
Astrobiology News for July 2013: What Makes a Planet Habitable

... One  of  the  most  intriguing  possibilities  for  life-­‐sustaining  planets  is  coming  from  the   mounting  evidence  that  Earth-­‐sized  and  “super-­‐Earth-­‐sized”  planets  may  be   common  in  the  HZ’s  of  M-­‐dwarfs.  M-­‐dwarfs ...
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File

... Sun’s gravitational pull on Earth and Earth’s forward momentum as it travels around the Sun. Without the Sun’s gravitational pull, Earth would not move in a circle around the Sun, but would continue moving in a straight line through the Milky Way. Without Earth’s momentum, the Sun would pull Earth i ...
planetary puzzlers - Stemmers Run Middle
planetary puzzlers - Stemmers Run Middle

... planets in our solar system. Someone asks, “What’s green and blue, and has an average diameter of 12,756 kilometers?” Sure, everyone got that one. Another member asks: “What orbits the sun once every 687 days, and has the largest volcanoes in our solar system?” Okay, that’s a little harder. “Just on ...
Things to do today Terminal, “Astronomy is Fun”
Things to do today Terminal, “Astronomy is Fun”

Models of the solar system
Models of the solar system

... •Aristotle (300’s BC) said solar system was geocentric, meaning that the earth is center. This model did not make sense because some planets seem to sometimes move backward (retrograde motion) ...
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Definition of planet



The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.
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