PLANETARY MOTION
... little circle that is itself orbiting on a larger circle. The little circle is called “epicycle”, the larger one “deferent”. A planet moving on epicycles and deferents, if observed form Earth, appears to have a forward and backward motion similar to the retrograde motion. Ptolemy’s geocentric model ...
... little circle that is itself orbiting on a larger circle. The little circle is called “epicycle”, the larger one “deferent”. A planet moving on epicycles and deferents, if observed form Earth, appears to have a forward and backward motion similar to the retrograde motion. Ptolemy’s geocentric model ...
PLANETARY MOTION G. Iafrate(a) and M. Ramella(a) (a) INAF
... little circle that is itself orbiting on a larger circle. The little circle is called “epicycle”, the larger one “deferent”. A planet moving on epicycles and deferents, if observed form Earth, appears to have a forward and backward motion similar to the retrograde motion. Ptolemy’s geocentric model ...
... little circle that is itself orbiting on a larger circle. The little circle is called “epicycle”, the larger one “deferent”. A planet moving on epicycles and deferents, if observed form Earth, appears to have a forward and backward motion similar to the retrograde motion. Ptolemy’s geocentric model ...
Document
... caused by the pull of a small unseen planet. b. We have seen the motion of the planet caused by the wobble of the star. c. We have seen the changing position of the star caused by the pull of the small unseen planet. d. We have seen the changing velocity of the planet caused by the motion of the sta ...
... caused by the pull of a small unseen planet. b. We have seen the motion of the planet caused by the wobble of the star. c. We have seen the changing position of the star caused by the pull of the small unseen planet. d. We have seen the changing velocity of the planet caused by the motion of the sta ...
The Earth in Orbit - School
... The Sun and all the planets lie approximately on the same plane. This suggests that the solar system formed from a disc of material that was in orbit around the Sun. By definition the ecliptic plane contains the Earth's orbit. The angle of other planet's orbits relative to this is called their incli ...
... The Sun and all the planets lie approximately on the same plane. This suggests that the solar system formed from a disc of material that was in orbit around the Sun. By definition the ecliptic plane contains the Earth's orbit. The angle of other planet's orbits relative to this is called their incli ...
Unit One: Earth Dimensions Although the Earth appears to be a
... Gravity- the force of attraction between two objects Same objects weigh more at the poles than at the equator of the Earth because there is a greater gravitational pull at the poles than at the equator. 4. Sinking Ship Theory ...
... Gravity- the force of attraction between two objects Same objects weigh more at the poles than at the equator of the Earth because there is a greater gravitational pull at the poles than at the equator. 4. Sinking Ship Theory ...
EXPLORING THE SOLAR SYSTEM
... Jupiter is fascinating not just for its atmosphere but also its family of moons, the biggest of which can be seen through a pair of binoculars. This big four are called the Galilean satellites because they were discovered by Galileo 400 years ago. The illustration above shows them lined up in order ...
... Jupiter is fascinating not just for its atmosphere but also its family of moons, the biggest of which can be seen through a pair of binoculars. This big four are called the Galilean satellites because they were discovered by Galileo 400 years ago. The illustration above shows them lined up in order ...
The First Thousand Exoplanets
... from the Sun. The underlying theory is based on the nebular hypothesis, which was proposed in 1734 by Emanuel Swedenborg and refined later in the 18th century by Immaneul Kant and Pierre-Simon Laplace. Problems with the nebular hypothesis were addressed by Victor Safronov in the 1970’s and his work ...
... from the Sun. The underlying theory is based on the nebular hypothesis, which was proposed in 1734 by Emanuel Swedenborg and refined later in the 18th century by Immaneul Kant and Pierre-Simon Laplace. Problems with the nebular hypothesis were addressed by Victor Safronov in the 1970’s and his work ...
Space Review Questions answers
... 2. Who is responsible for space junk? 26. What is the difference between altitude and azimuth when describing a star’s position? Explain how they would be different for somebody in northern BC and somebody in southern Ontario. Altitude – How high something is. The elevation Azimuth – What direction ...
... 2. Who is responsible for space junk? 26. What is the difference between altitude and azimuth when describing a star’s position? Explain how they would be different for somebody in northern BC and somebody in southern Ontario. Altitude – How high something is. The elevation Azimuth – What direction ...
Introducing the Sun-Earth
... • Our Solar system is just a small part of the “Milky Way” galaxy. • Our sun is just an “average star” and one of 100 billion or so stars in our galaxy. Joined by billions of other galaxies in the universe. • The term “average star” is how astronomers classify stars by temperature, luminosity, and ...
... • Our Solar system is just a small part of the “Milky Way” galaxy. • Our sun is just an “average star” and one of 100 billion or so stars in our galaxy. Joined by billions of other galaxies in the universe. • The term “average star” is how astronomers classify stars by temperature, luminosity, and ...
Planets and Stars Key Vocabulary: Comparing and Contrasting
... There are more stars in the sky than a person can count one-at-a-time during an entire lifetime. There is just one star in our solar system - the sun. The sun is a medium-sized star, but it appears larger than other stars because it is so close to Earth. ...
... There are more stars in the sky than a person can count one-at-a-time during an entire lifetime. There is just one star in our solar system - the sun. The sun is a medium-sized star, but it appears larger than other stars because it is so close to Earth. ...
Shining Star A
... of northern and southern hemisphere. After viewing, have the students write their birthdays on a piece of paper. Next ask them to write what the weather is like in the northern hemisphere on their birthday. Then have them write what the weather would be like on their birthday in the southern hemisph ...
... of northern and southern hemisphere. After viewing, have the students write their birthdays on a piece of paper. Next ask them to write what the weather is like in the northern hemisphere on their birthday. Then have them write what the weather would be like on their birthday in the southern hemisph ...
Astronomy Quiz Units 1 to 3
... “A planet (from Greek πλανήτης, alternative form of πλάνης "wanderer") is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. “ (Wiki ...
... “A planet (from Greek πλανήτης, alternative form of πλάνης "wanderer") is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. “ (Wiki ...
Test 2 Overview
... fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'll see. ...
... fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'll see. ...
Sept2 - University of Arizona
... Galileo observed that Venus showed phases entirely like those of the moon from full to crescent, which it must do if the Copernican theory was correct. According to the Ptolemaic theory Venus would have to be a perpetual crescent. ...
... Galileo observed that Venus showed phases entirely like those of the moon from full to crescent, which it must do if the Copernican theory was correct. According to the Ptolemaic theory Venus would have to be a perpetual crescent. ...
The surface temperature of a planet
... Note that these are average surface temperatures: latitude, geography, seasons, local albedo, local cloud cover etc. cause variations in the earth’s surface temperature of ±30 –40 K (compare Northern Canada with Arabia). Another minor factor is heat released from inside a planet. The larger terrestr ...
... Note that these are average surface temperatures: latitude, geography, seasons, local albedo, local cloud cover etc. cause variations in the earth’s surface temperature of ±30 –40 K (compare Northern Canada with Arabia). Another minor factor is heat released from inside a planet. The larger terrestr ...
PDF
... different direction from the other planets. 22. This is the next planet out from the sun after earth. 23. The blue planet. It has water on it. ...
... different direction from the other planets. 22. This is the next planet out from the sun after earth. 23. The blue planet. It has water on it. ...
SNC1P * Exam Review: ECOLOGY
... 5. What does the Law of Electric Charges state? 6. What is grounding? Include a diagram. 7. What instrument is used to measure current, voltage, and resistance? 8. What is the difference between parallel and series circuits? Draw an example of each. 9. Explain what happens when one bulb burns out in ...
... 5. What does the Law of Electric Charges state? 6. What is grounding? Include a diagram. 7. What instrument is used to measure current, voltage, and resistance? 8. What is the difference between parallel and series circuits? Draw an example of each. 9. Explain what happens when one bulb burns out in ...
Objective or GLE: 6.1.A.a: Classify celestial bodies in the solar
... The most familiar group of asteroids to many is the Asteroid Belt, located between Mars and Jupiter. Most of these extraterrestrial rocks are small in size. However, extremely large ones have been noted, such as the asteroid Ceres, which is approximately 930 kilometers in diameter. There are two oth ...
... The most familiar group of asteroids to many is the Asteroid Belt, located between Mars and Jupiter. Most of these extraterrestrial rocks are small in size. However, extremely large ones have been noted, such as the asteroid Ceres, which is approximately 930 kilometers in diameter. There are two oth ...
Earths Place in the Universe
... in the disk. • Our sun is just 1 of 100 billion stars that make up the milky way. • It is difficult to determine its size and shape because we are located in the milky way. • The solar system is located in an outer edge of the disc-shaped Milky Way Galaxy, which spans 100,000 light years. ...
... in the disk. • Our sun is just 1 of 100 billion stars that make up the milky way. • It is difficult to determine its size and shape because we are located in the milky way. • The solar system is located in an outer edge of the disc-shaped Milky Way Galaxy, which spans 100,000 light years. ...
Final Review Sheet - Astronomy Part 2
... 2. What is the difference between a constellation, binary star, and a star ...
... 2. What is the difference between a constellation, binary star, and a star ...
Space - No Brain Too Small
... The planets are (in order, moving away from the Sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. A mnemonic may be useful to help you name the planets in order. Eg. My Very Easy Method Just Speeds Up Naming Planets. The planets (except Pluto) have elliptical (almost cir ...
... The planets are (in order, moving away from the Sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. A mnemonic may be useful to help you name the planets in order. Eg. My Very Easy Method Just Speeds Up Naming Planets. The planets (except Pluto) have elliptical (almost cir ...
Celestial Events of the Month of May, 2014
... Celestial Events of the Month of May, 2014 May 5, 6 - Eta Aquarids Meteor Shower: The Eta Aquarids is an above average shower, capable of producing up to 60 meteors per hour at its peak. Most of the activity is seen in the Southern Hemisphere. In the Northern Hemisphere, the rate can reach about 30 ...
... Celestial Events of the Month of May, 2014 May 5, 6 - Eta Aquarids Meteor Shower: The Eta Aquarids is an above average shower, capable of producing up to 60 meteors per hour at its peak. Most of the activity is seen in the Southern Hemisphere. In the Northern Hemisphere, the rate can reach about 30 ...
9/29/16 pacing planet distance
... beginning of this line. Now pace off the distances to each planet as shown in the last column of the distance table on the next page. ...
... beginning of this line. Now pace off the distances to each planet as shown in the last column of the distance table on the next page. ...
Precambrian Time
... Modern humans have been on Earth for the past 6 seconds or so, or about 0.043% of Earth’s history... ...
... Modern humans have been on Earth for the past 6 seconds or so, or about 0.043% of Earth’s history... ...
Extraterrestrial life
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.