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GCSE Questions on Circular Motion, Satellites
GCSE Questions on Circular Motion, Satellites

... This page is from a science magazine: The Red Planet The two natural satellites, or moons, of Mars are Phobos (fear) and Deimos (terror). They are named after the horses which pulled the chariot of Mars, the god of war in the mythology of Ancient Greece. Phobos takes less than eight hours to orbit M ...
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... not particularly conspicuous). Southern hemisphere observers see a South Celestial Pole, which doesn’t have any bright star near it. If you stand on the north pole of the earth, the north celestial pole is directly overhead in the sky – it lies in your zenith, which is another name for the point st ...
Stellar Physics - Craigie High School
Stellar Physics - Craigie High School

... Sun revolved around the Earth because that is what it seems to do! Similarly most people were sure that the Earth was flat until there was definite proof from sailors who had ventured round the world and not fallen off! It may prove useful therefore to give a brief historical introduction so that we ...
Heliocentric or Geocentric
Heliocentric or Geocentric

... Scripture), support Zionism (the City of God comes after God arrives, not before) or sit in a Pew on Easter “Ishtar” sunrise services figuring out how Rabbits (Idol of Anammellech) lay colored eggs or feel the Christ Consciousness in the Pineal Gland (3rd Eye) from Santa’s Amanita Muscaria mushrooms ...
Celestial Equator
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... • Note that right ascension is measured eastwardly along the equator, starting at the vernal equinox. • Note that 24h is the same as 0h. • Hours of right ascension are subdivided into minutes and seconds. However, these are not equivalent to the minute and second subdivisions of degrees of declinati ...
Latitude and Longitude - Northside Middle School
Latitude and Longitude - Northside Middle School

... called “North” and are in the Northern Hemisphere  Positions of latitude below the equator are called “South” and are in the Southern Hemisphere ...
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Volume 4 (Issue 3), March 2015
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American Scientist - Earth, Environmental and Planetary Sciences
American Scientist - Earth, Environmental and Planetary Sciences

... journey from Earth to the frontier of the Solar System, where it will undertake the first close study of Pluto and its astonishingly diverse system of satellites. It will be a raw act of exploration unparalleled since NASA’s Voyager missions to the giant planets in the late 1980s. Nothing quite like ...
Solar System - New Haven Science
Solar System - New Haven Science

... objects that reflect light, including Earth and its moon. The side of the earth that is facing the sun experiences daylight; the side of the Earth facing away from the sun experiences night. All parts of the earth experience a cycle that includes both day and night, providing evidence that the earth ...
SkyWatcher - Boise Astronomical Society
SkyWatcher - Boise Astronomical Society

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... Science in the news – Voyager’s 11 billion mile journey Much of what we know about the outer planets and their moons is as a result of the Voyager missions since the data would have been impossible to collect from Earth. Now Voyager is beginning to leave our solar system and it is sending back data ...
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... ABSTRACT A moderately massive early Sun has been proposed to resolve the so–called faint early Sun paradox. We calculate the time–evolution of the solar mass that would be required by this hypothesis, using a simple parametrized energy-balance model for Earth’s climate. Our calculations show that th ...
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... inner Solar System, each of which is unique. Mercury represents an endmember of planetary formation: the planet closest to the Sun, with a highly reduced, but volatile-bearing surface, and an oversized metallic core in comparison to the other planets. A truly fundamental question in planetary scienc ...
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... US astronomer Clyde Tombaugh found Pluto, orbiting at a distance of around 40 au. And in 1992, astronomers David Jewitt, then at the University of Hawaii, and Jane Luu, then at the University of California, Berkeley, discovered an even more distant object, beginning the exploration of a region of sp ...
Physics Today - Earth, Environmental and Planetary Sciences
Physics Today - Earth, Environmental and Planetary Sciences

... solving how we came to have our Moon may illuminate another question: why Venus has none. More generally, the formation of the Moon is a key piece in the puzzle of how our solar system evolved into the architecture we see. As scientists collect more information about planets around other stars, it w ...
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...  Most asteroids (thousands) lie in the asteroid belt, a region between the orbits of Mars and Jupiter  The first asteroid (Ceres) of this asteroid belt swarm was discovered as a result of a search for the “missing planet” of Bode’s law  The combined mass of all the asteroids is probably less than ...
ST05 plotting the moon
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... NCP through the year (they also rotate around the NCP through the night). (Of course, this apparent motion is caused by the Earth’s rotation – the stars don’t really move!) Note that the Big Dipper (Ursa Major) and Cassiopeia are on opposite sides of the North Celestial Pole. So they have different ...
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...  We will come back to this later… ...
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ASTR 330: The Solar System Dr Conor Nixon Fall 2006

... new tool of science: the telescope, and turned it on the sky. He soon found: 1. The four large moons of Jupiter, a mini-solar system, in itself. 2. The phases of the planet Venus, similar to the moon. ...
Earth Chakras - Astrogeographia
Earth Chakras - Astrogeographia

... We have considered the relationship of the earthly globe to the celestial sphere comprising multitudes of stars, looking at how the stars in the heavens are mirrored on the Earth at various locations, as indicated in Rudolf Steiner’s words, “we can conceive of the active heavenly sphere mirrored in ...
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Orrery



An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It may also represent the relative sizes of these bodies; but since accurate scaling is often not practical due to the actual large ratio differences, a subdued approximation may be used instead. Though the Greeks had working planetaria, the first orrery that was a planetarium of the modern era was produced in 1704, and one was presented to Charles Boyle, 4th Earl of Orrery — whence came the name. They are typically driven by a clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
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