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Rotation and Revolution - Environmental Science Institute
Rotation and Revolution - Environmental Science Institute

... 7. Discuss with the students what is he drawing and why is he drawing it. What planet follows this orbit? Why does a planet follow an orbit? 8. Make an orbit for each planet for the students to follow. 9. Finally, ask the students with the planets to move in their orbits. Remind them that a planet n ...
Motions of the Night Sky
Motions of the Night Sky

... of astronomy as a science. ...
solar system websearch
solar system websearch

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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 ...
File
File

... around, forming an accretion disk. ►Sun formed in the middle from all the heat in the middle of the disk 3.Cooling of the disk caused small shapes to form 4. These cool forms combined to make the 4 SOLID inner planets ...
Where Are We Going?
Where Are We Going?

... Sun. What do you notice about the sizes of the orbits? Compare the orbits near the Sun with those farther away from the Sun. If you were the commander of a spacebus that traveled among the planets, would you rather travel between the Inner Planets (Mercury, Venus, Earth, Mars) or the Outer Planets ( ...
planets of our solar system
planets of our solar system

... Solar System. It is one of the gas giants--big planets made of gas. It is best known for its rings, which can be seen only through a telescope. Saturn’s rings were first seen by Galileo Galilei in ...
Comets…
Comets…

... Small objects in the Solar System Meteors, Comets, : we see them without a telescope Asteroids: small rocky objects mostly between Mars and Jupiter – too faint to see without a telescope Kuiper belt objects: even fainter objects beyond Pluto, debris left over from solar system formation Image of co ...
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Formation of the Solar System Reading Questions
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Solar System - Bishop Seabury Academy
Solar System - Bishop Seabury Academy

... Spectroscopy reveals the chemical composition of the planets •  The spectrum of a planet or satellite with an atmosphere reveals the atmosphere’s composition •  If there is no atmosphere, the spectrum indicates the composition of the surface. •  The substances that make up the planets can be classi ...
Terrestrial or Inner Planets
Terrestrial or Inner Planets

... • If there is no atmosphere, the spectrum indicates the composition of the surface. • The substances that make up the planets can be classified as gases, ices, or rock, depending on the temperatures at which they solidify • The terrestrial planets are composed primarily of rocky materials, whereas t ...
What do you think about the origin of most of Jupiter`s moons?
What do you think about the origin of most of Jupiter`s moons?

... • Neptune moved rapidly outward. Its elliptical orbit settled down to circular by exchanging angular momentum with the Kuiper objects. ...
The Search for Planet X
The Search for Planet X

... Earth’s moon. Its meager gravity could not possibly explain an­omalies in the orbits of Neptune and Uranus—which turned out to be just as well because those anomalies faded away on further inspection. In that sense, Pluto was a false alarm. In the big picture, however, its discovery was extraordinar ...
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Midterm Exam: Chs. 1-3, 7-11

... ____ 24. Which of the following is a necessary condition for lunar or solar eclipses? a. The Earth must be on the celestial equator. b. The Sun must be on the celestial equator. c. The Sun must be close to or crossing the ecliptic plane. d. The Moon must be close to or crossing the ecliptic plane. ...
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... meteor, starfield, and even a moonbow all vying for attention. It is interesting to first note, though, what can't be seen -- a rising moon on the other side of the camera. The bright moon not only illuminated this beautiful landscape in Queensland, Australia last June, but also created the beautifu ...
The Solar System
The Solar System

... square of the period of revolution of a planet (in years) is proportional to the cube of the average distance of the planet from the sun (in astronomical units, AU, the average sun-earth distance) ...
The Stars
The Stars

...  The patterns of stars in the sky stay the same, although they appear to move across the sky nightly, and different stars can be seen in different seasons.  Telescopes magnify the appearance of some distant objects in the sky, including the moon and the planets. The number of stars that can be see ...
What are the Jovian Planets? Characteristics of Jovian Planets
What are the Jovian Planets? Characteristics of Jovian Planets

... Storms on Saturn • Large storms are rarer • Connected with seasons • ~ every 30 years outbreak of spots are seen in the equatorial ...
Planets
Planets

... conceptualize them c. Geometry correctly inferred by Huygens in 1659 d. Complex Composed of small particles (moonlets) that orbit it 1) Most rings fall into two categories based on particle density a) Main rings contain particles from a few centimeters to several meters in diameter Page 5 of 6 ...
Nebular Hypothesis
Nebular Hypothesis

... material that’s currently in the planets, and then add enough volatile materials (mainly H & He) to “reconstitute” a gas disk with the same composition as the Sun. ...
g9u4c12part3
g9u4c12part3

... consume their fuel faster than smaller stars Become red giants. (supergiants) last for only 7 billion years. they collapse in on themselves causing a massive explosion called a supernova. the remaining core of the supernova will eventually collapse to form a neutron star. A sphere only 10 km ...
Lecture9_2014_v2 - UCO/Lick Observatory
Lecture9_2014_v2 - UCO/Lick Observatory

EARTH-CENTERED MODELS OF THE SOLAR SYSTEM
EARTH-CENTERED MODELS OF THE SOLAR SYSTEM

... The planets in order from biggest to smallest are: Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, Mercury. ...
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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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