Comets - LWC Earth Science
... • Why is there an asteroid belt? • One theory suggests that they are the remains of a planet that was destroyed in a massive collision long ago. • More likely, asteroids are material that never coalesced into a planet. • In fact, if the estimated total mass of all asteroids was gathered into a singl ...
... • Why is there an asteroid belt? • One theory suggests that they are the remains of a planet that was destroyed in a massive collision long ago. • More likely, asteroids are material that never coalesced into a planet. • In fact, if the estimated total mass of all asteroids was gathered into a singl ...
Friday Feb 25th, 2000
... – The earth’s axis is tilted compared to the rest of the flat solar system (planets roll around in their orbits like BB’s on a plate) – So the motion of the sun (and everything else in the solar system) is along a tilted line or path = ecliptic – That tilted path runs through some constellations… ho ...
... – The earth’s axis is tilted compared to the rest of the flat solar system (planets roll around in their orbits like BB’s on a plate) – So the motion of the sun (and everything else in the solar system) is along a tilted line or path = ecliptic – That tilted path runs through some constellations… ho ...
9J Gravity and Space - We can`t sign you in
... Sir Isaac Newton was a scientist who was interested in forces and gravity. He did not discover gravity – gravity and its effects existed long before Newton. Newton did discover how to calculate the force of gravity on objects. His work was so important that the unit of force is named after him! ...
... Sir Isaac Newton was a scientist who was interested in forces and gravity. He did not discover gravity – gravity and its effects existed long before Newton. Newton did discover how to calculate the force of gravity on objects. His work was so important that the unit of force is named after him! ...
9J Gravity and Space
... Sir Isaac Newton was a scientist who was interested in forces and gravity. He did not discover gravity – gravity and its effects existed long before Newton. Newton did discover how to calculate the force of gravity on objects. His work was so important that the unit of force is named after him! ...
... Sir Isaac Newton was a scientist who was interested in forces and gravity. He did not discover gravity – gravity and its effects existed long before Newton. Newton did discover how to calculate the force of gravity on objects. His work was so important that the unit of force is named after him! ...
Document
... 1. 400 years before Ptolemy, around 280 BC, the Greek philosopher Aristarchus proposed a moving-Earth solution to explain celestial motions. He introduced the concept of a spinning Earth and the first heliocentric model, 1800 years before Copernicus. 2. Even though Aristarchus could not explain the ...
... 1. 400 years before Ptolemy, around 280 BC, the Greek philosopher Aristarchus proposed a moving-Earth solution to explain celestial motions. He introduced the concept of a spinning Earth and the first heliocentric model, 1800 years before Copernicus. 2. Even though Aristarchus could not explain the ...
Solar System Science
... 2. How does the star lose AM and slow down? Solar-type stars all rotate at about the same speed at the Sun. ...
... 2. How does the star lose AM and slow down? Solar-type stars all rotate at about the same speed at the Sun. ...
Astronomy 211 EXAM 1 2003 February 6 Answer TRUE
... 3. If in the morning the Sun is in the constellation Taurus, by the afternoon it would have moved on past the constellation Cancer. 4. The meridian is both a vertical circle and an hour circle. 5. Altitude is the angle between a star and the celestial equator. 6. In 24 hours a star traces a complete ...
... 3. If in the morning the Sun is in the constellation Taurus, by the afternoon it would have moved on past the constellation Cancer. 4. The meridian is both a vertical circle and an hour circle. 5. Altitude is the angle between a star and the celestial equator. 6. In 24 hours a star traces a complete ...
Dynamics of disks with planets
... Jupiter’s perhaps) and just call massive superplanets brown dwarfs? One reason not to do it is that naming a body brown dwarf may falsely suggest we know how it formed. A growing number of systems (like υ And, HD 168443, Gl 876) will surely be found, in which companions have very different masses an ...
... Jupiter’s perhaps) and just call massive superplanets brown dwarfs? One reason not to do it is that naming a body brown dwarf may falsely suggest we know how it formed. A growing number of systems (like υ And, HD 168443, Gl 876) will surely be found, in which companions have very different masses an ...
2010 AP Gravitation Notes
... same as in the circular orbit? 36. In March 1999 the Mars Global Surveyor (GS) entered its final orbit about Mars, sending data back to Earth. Assume a circular orbit with a period of 1.18 x 102 minutes = 7.08 x 103 s and orbital speed of 3.40 x 103 m/s . The mass of the GS is 930 kg and the radius ...
... same as in the circular orbit? 36. In March 1999 the Mars Global Surveyor (GS) entered its final orbit about Mars, sending data back to Earth. Assume a circular orbit with a period of 1.18 x 102 minutes = 7.08 x 103 s and orbital speed of 3.40 x 103 m/s . The mass of the GS is 930 kg and the radius ...
Chapter 3 The Science of Astronomy
... 7/360 × (circum. Earth) = 5000 stadia 1/50 x (circum. Earth) = 5000 stadia circum. Earth = 5000 × 50 stadia ...
... 7/360 × (circum. Earth) = 5000 stadia 1/50 x (circum. Earth) = 5000 stadia circum. Earth = 5000 × 50 stadia ...
Size of the Solar System Quiz Please Do Not Write on This Paper
... d. Planets are oval and NOT round. 3. The FARTHER away from the Sun … a. the CLOSER together the planets. b. the FARTHER apart the planets. c. SOME planets are close, OTHERS are farther apart. d. NONE of the above. 4. The Solar System is … a. MOSTLY b. MOSTLY c. MOSTLY d. MOSTLY ...
... d. Planets are oval and NOT round. 3. The FARTHER away from the Sun … a. the CLOSER together the planets. b. the FARTHER apart the planets. c. SOME planets are close, OTHERS are farther apart. d. NONE of the above. 4. The Solar System is … a. MOSTLY b. MOSTLY c. MOSTLY d. MOSTLY ...
Power Point Version
... – The earth’s axis is tilted compared to the rest of the flat solar system (planets roll around in their orbits like BB’s on a plate) – So the motion of the sun (and everything else in the solar system) is along a tilted line or path = ecliptic – That tilted path runs through some constellations… ho ...
... – The earth’s axis is tilted compared to the rest of the flat solar system (planets roll around in their orbits like BB’s on a plate) – So the motion of the sun (and everything else in the solar system) is along a tilted line or path = ecliptic – That tilted path runs through some constellations… ho ...
Introduction to Electromagnetism
... Looking ahead SEMINAR 2:15-3:30 4:00 Math-B: Calculus pre-tests Astro-B: start Astrophysics Ch.1 (Carroll & Ostlie) ...
... Looking ahead SEMINAR 2:15-3:30 4:00 Math-B: Calculus pre-tests Astro-B: start Astrophysics Ch.1 (Carroll & Ostlie) ...
astrocoursespring2012lec1-1-5
... -minor errata They point to the cross-over point of the analemma as the the equinox. This is not the case. The equinox occurs halfway between the most northern, and south excursion of the Sun ...
... -minor errata They point to the cross-over point of the analemma as the the equinox. This is not the case. The equinox occurs halfway between the most northern, and south excursion of the Sun ...
University of Alaska Southeast Integrated Unit: The Solar System
... seemed to stay in the same formation. These were the stars. However, other lights seem to move around the sky, wandering in and out and among each other. They named these bodies planetes, which meant, "wandering stars." From this word comes our term, planet, which means a large space object orbiting ...
... seemed to stay in the same formation. These were the stars. However, other lights seem to move around the sky, wandering in and out and among each other. They named these bodies planetes, which meant, "wandering stars." From this word comes our term, planet, which means a large space object orbiting ...
Astro 001 Spring 2002
... A. A hypothesis is more fully developed than a theory. B. A theory is more fully developed than a hypothesis. C. A hypothesis is based on a model, while a theory isn’t. D. There is essentially no difference. The words are interchangeable. (18) Eratosthenes calculated the size of the Earth from A. an ...
... A. A hypothesis is more fully developed than a theory. B. A theory is more fully developed than a hypothesis. C. A hypothesis is based on a model, while a theory isn’t. D. There is essentially no difference. The words are interchangeable. (18) Eratosthenes calculated the size of the Earth from A. an ...
Nuclear Interactions in Supernovae .
... • The hydrogen is burned in a runaway reaction, and an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times tha ...
... • The hydrogen is burned in a runaway reaction, and an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times tha ...
- BIO Web of Conferences
... (SAM) experiment aboard the Curiosity rover, if methane had been detected in sufficient abundances (over 20 ppb). Such an abundance had been tentatively reported from earlier observations (see [3] for a review), but no methane has been detected so far from Curiosity. Another key measurement is the D ...
... (SAM) experiment aboard the Curiosity rover, if methane had been detected in sufficient abundances (over 20 ppb). Such an abundance had been tentatively reported from earlier observations (see [3] for a review), but no methane has been detected so far from Curiosity. Another key measurement is the D ...
Stellar Remnants
... • About 500 light years away • About 12 miles in diameter • “Tails” from a shock wave as Geminga plows through the interstellar medium ...
... • About 500 light years away • About 12 miles in diameter • “Tails” from a shock wave as Geminga plows through the interstellar medium ...
A Relative Model of the Solar System: Preparation
... The solar system includes the Sun, the nine Classical Planets, their moons, as well as newly discovered dwarf planets, comets, asteroids, and meteoroids which orbit the sun. In this lab activity we will make a walking model of the Solar System. 1. Using page 542-543 of the textbook, write the order ...
... The solar system includes the Sun, the nine Classical Planets, their moons, as well as newly discovered dwarf planets, comets, asteroids, and meteoroids which orbit the sun. In this lab activity we will make a walking model of the Solar System. 1. Using page 542-543 of the textbook, write the order ...
The Universe and Space Travel
... mass of our sun, lying 1.3 billion lightyears away. These are waves in the very fabric of space and time. Measurements agree with Einstein’s theory, computed on supercomputers. ...
... mass of our sun, lying 1.3 billion lightyears away. These are waves in the very fabric of space and time. Measurements agree with Einstein’s theory, computed on supercomputers. ...
How Telescopes Changed our Universe
... In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
... In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
Lecture 6 Recall: Geocentric Model of Solar System
... Heliocentric fixes the orbits • To get the right amount of retrograde motion, must fix sidereal period and orbit size for each planet. ...
... Heliocentric fixes the orbits • To get the right amount of retrograde motion, must fix sidereal period and orbit size for each planet. ...
The Minor Bodies of the Solar System
... degree by craters which on Earth are called astroblemes (Dietz 1963). The fact that the smaller bodies are also severely damaged, or perhaps are themselves fragments, was proved when in November 1971, the U.S. spacecraft Mariner 9 succeeded in relaying the frrst detailed views of any natural satelli ...
... degree by craters which on Earth are called astroblemes (Dietz 1963). The fact that the smaller bodies are also severely damaged, or perhaps are themselves fragments, was proved when in November 1971, the U.S. spacecraft Mariner 9 succeeded in relaying the frrst detailed views of any natural satelli ...
The barycentric motion of exoplanet host stars
... Context. Empirical evidence suggests a tantalising but unproven link between various indicators of solar activity and the barycentric motion of the Sun. The latter is exemplified by transitions between regular and more disordered motion modulated by the motions of the giant planets, and rare periods ...
... Context. Empirical evidence suggests a tantalising but unproven link between various indicators of solar activity and the barycentric motion of the Sun. The latter is exemplified by transitions between regular and more disordered motion modulated by the motions of the giant planets, and rare periods ...
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.