The Heliocentric Universe
... calculate planetary orbit distances for the first time. D. placed earth at the center of the solar system and was the first to postulate that planets moved in epicycles. ...
... calculate planetary orbit distances for the first time. D. placed earth at the center of the solar system and was the first to postulate that planets moved in epicycles. ...
Earth Moon Sun System
... its original position in the sky (when a position on Earth realigns with the Sun – 24 hours -Sidereal Day: relative to distant stars, when a star other than the Sun returns to its original position in the night sky (when a position on Earth realigns with a star other than the Sun) – 23hr. 56min. 4se ...
... its original position in the sky (when a position on Earth realigns with the Sun – 24 hours -Sidereal Day: relative to distant stars, when a star other than the Sun returns to its original position in the night sky (when a position on Earth realigns with a star other than the Sun) – 23hr. 56min. 4se ...
Astronomy Unit Test – Chapter 21
... 28. A star is twice as massive as the sun. How will its lifespan compare with the sun? 29. Some astronomers discover a galaxy that contains only old stars. What type of galaxy is it likely to be? 30. What does Hubble’s Law state? 31. Create a flow-map that properly sequences the formation of the sol ...
... 28. A star is twice as massive as the sun. How will its lifespan compare with the sun? 29. Some astronomers discover a galaxy that contains only old stars. What type of galaxy is it likely to be? 30. What does Hubble’s Law state? 31. Create a flow-map that properly sequences the formation of the sol ...
fall_2000_final
... C. uniformly composed of hydrogen and helium. D. uniformly composed of helium. E. composed of molecules containing mostly carbon and iron. 45. When two galaxies collide with one another their shapes are distorted by A. collisions of individual stars. B. a gigantic explosion resulting from such a col ...
... C. uniformly composed of hydrogen and helium. D. uniformly composed of helium. E. composed of molecules containing mostly carbon and iron. 45. When two galaxies collide with one another their shapes are distorted by A. collisions of individual stars. B. a gigantic explosion resulting from such a col ...
Astronomy 101 Test 1 Review FOUNDATIONS Scientists use the
... around the Sun in circular orbits, and was able to arrange the known planets in their correct order, and realized that the stars must be more distant because they didn't show retrograde motion. His arguments were not generally accepted. ...
... around the Sun in circular orbits, and was able to arrange the known planets in their correct order, and realized that the stars must be more distant because they didn't show retrograde motion. His arguments were not generally accepted. ...
PISGAH Dr. Bob Hayward ASTRONOMICAL Astronomer/Educator
... on it and particularly note it on Saturday evening when it is just to the north of the still nearly full moon. Mars follows Jupiter by rising a few minutes before 1 a.m. It is getting brighter as we approach it in our orbit around the sun and its red color will become more apparent. The beautiful ri ...
... on it and particularly note it on Saturday evening when it is just to the north of the still nearly full moon. Mars follows Jupiter by rising a few minutes before 1 a.m. It is getting brighter as we approach it in our orbit around the sun and its red color will become more apparent. The beautiful ri ...
Our Solar System Study Guide
... The asteroid belt is located between ____________________________ and _______________________. 37) A _____________________________________ is a small object in the solar system. If it crosses paths with Earth and enters Earth’s atmosphere, it is called a ________________________________. If it land ...
... The asteroid belt is located between ____________________________ and _______________________. 37) A _____________________________________ is a small object in the solar system. If it crosses paths with Earth and enters Earth’s atmosphere, it is called a ________________________________. If it land ...
Henry6SCI (H6SCIASTRO)
... C. There is a predictable change in the amount of heat and light given off by the Sun. D. Earth turns slower in summer than it does in winter. 16. Places on Earth's surface where tectonic plates meet are characterized by A. more severe earthquake activity. B. long formations of sea arches. C. stable ...
... C. There is a predictable change in the amount of heat and light given off by the Sun. D. Earth turns slower in summer than it does in winter. 16. Places on Earth's surface where tectonic plates meet are characterized by A. more severe earthquake activity. B. long formations of sea arches. C. stable ...
lecture5 - UMass Astronomy
... Venus went through a complete set of phases, just like the Moon. This was the first empirical evidence that allowed a definitive test of the geocentric and heliocentric models. ...
... Venus went through a complete set of phases, just like the Moon. This was the first empirical evidence that allowed a definitive test of the geocentric and heliocentric models. ...
powerpoint version
... Stars will form and bake. In other words... Gas and dust cloud is compressed by shock wave from a supernova, gravity takes over so cloud condenses, getting hotter and smaller. Cloud becomes a T Tauri star, lowish mass, red, buried in ISM. Original cloud was almost certainly rotating. As it gets smal ...
... Stars will form and bake. In other words... Gas and dust cloud is compressed by shock wave from a supernova, gravity takes over so cloud condenses, getting hotter and smaller. Cloud becomes a T Tauri star, lowish mass, red, buried in ISM. Original cloud was almost certainly rotating. As it gets smal ...
Tour of the Galaxy - Shelbyville Central Schools
... The Coma Cluster of Galaxies Almost every object in the above photograph is a galaxy. The Coma Cluster of Galaxies contains thousands of galaxies. Each of these galaxies houses billions of stars - just as our own Milky Way Galaxy does. Light from the Coma Cluster takes hundreds of millions of years ...
... The Coma Cluster of Galaxies Almost every object in the above photograph is a galaxy. The Coma Cluster of Galaxies contains thousands of galaxies. Each of these galaxies houses billions of stars - just as our own Milky Way Galaxy does. Light from the Coma Cluster takes hundreds of millions of years ...
October 15 - Astronomy
... When high speed particles from the Sun collide with atoms in Earth’s upper atmosphere. The electrons are knocked into higher energy orbitals and emit light when returning to the ground state. ...
... When high speed particles from the Sun collide with atoms in Earth’s upper atmosphere. The electrons are knocked into higher energy orbitals and emit light when returning to the ground state. ...
docx - STAO
... Students should know the order of the planets before starting this activity. If necessary, teach them a mnemonic, such as My Velvet Elephant Munches... In this activity the Sun is placed at one end of the field and the planets are arranged linearly. Discuss with students that this is not an accurate ...
... Students should know the order of the planets before starting this activity. If necessary, teach them a mnemonic, such as My Velvet Elephant Munches... In this activity the Sun is placed at one end of the field and the planets are arranged linearly. Discuss with students that this is not an accurate ...
Sun Jeopardy
... When all of the Sun's core supply of Hydrogen has been converted into Helium nuclear fusion will stop, gravity will crush the core smaller. The pressure and temperature becomes so great that Helium is converted into Carbon. A red giant is formed as the star color changes from the expanded gases. Whe ...
... When all of the Sun's core supply of Hydrogen has been converted into Helium nuclear fusion will stop, gravity will crush the core smaller. The pressure and temperature becomes so great that Helium is converted into Carbon. A red giant is formed as the star color changes from the expanded gases. Whe ...
AST 101 Lecture 8 Astronomy in the 17th and 18th Centuries
... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
17 th and 18 th Century Astronomy
... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
... Right Ascension within each constellation. We still use these Flamsteed designations today. (The Royal Greenwich Observatory was closed in 1998 for lack of funds, and is now a museum.) ...
This Month In Astronomy - Astronomy Club of Virginia Tech
... above. These objects fell into this category due to their further distance from the Sun (from around 47 AU to, for some, 100 AU), and their extreme inclination when compared to the plane of planets. Despite being further away from Neptune, the orbital status of these scattered disk objects resulted ...
... above. These objects fell into this category due to their further distance from the Sun (from around 47 AU to, for some, 100 AU), and their extreme inclination when compared to the plane of planets. Despite being further away from Neptune, the orbital status of these scattered disk objects resulted ...
In Retrospect: Kepler`s Astronomia Nova
... enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first space mission dedicated to searching for planets beyond our Solar System using a similar ...
... enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first space mission dedicated to searching for planets beyond our Solar System using a similar ...
Gravity Basics The Power of Attraction
... For a long time, people have wondered what causes tides, which are the rise and fall of the sea level. For hundreds of years, it was believed that the gods were responsible, but now we know the real reason for this phenomenon. It is caused by the Moon and Sun’s gravitational pull. Remember that the ...
... For a long time, people have wondered what causes tides, which are the rise and fall of the sea level. For hundreds of years, it was believed that the gods were responsible, but now we know the real reason for this phenomenon. It is caused by the Moon and Sun’s gravitational pull. Remember that the ...
Homework #3
... a) Assuming uniform density, how does the average density of a star vary with mass on the main sequence? If the mass is halved, does the density go up or down and by what factor? b) Assuming hydrostatic equilibrium continuing to assume constant density and the dominance of ideal gas pressure, how do ...
... a) Assuming uniform density, how does the average density of a star vary with mass on the main sequence? If the mass is halved, does the density go up or down and by what factor? b) Assuming hydrostatic equilibrium continuing to assume constant density and the dominance of ideal gas pressure, how do ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.