Cosmos & Contact - Access Research Network
... – Zero – pretty cold! – Two or more – unstable orbits if planets at all. ...
... – Zero – pretty cold! – Two or more – unstable orbits if planets at all. ...
Chapter 5 Notes
... A. __________ gravity holds together a large collection of stars, gas, and dust 1. Earth galaxy is Milky Way which is part of a galaxy cluster named the ______ _____. 2. _______ _______ - spiral arms wind out from inner section; some have barred spirals with stars and gas in a central bar 3. _______ ...
... A. __________ gravity holds together a large collection of stars, gas, and dust 1. Earth galaxy is Milky Way which is part of a galaxy cluster named the ______ _____. 2. _______ _______ - spiral arms wind out from inner section; some have barred spirals with stars and gas in a central bar 3. _______ ...
PPT - Swift
... changes in stars, galaxies, and the universe over time. * Students know the solar system is located in an outer edge of the the disc-shaped Milky Way galaxy, which spans 100,000 light years * Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be use ...
... changes in stars, galaxies, and the universe over time. * Students know the solar system is located in an outer edge of the the disc-shaped Milky Way galaxy, which spans 100,000 light years * Students know that stars differ in their life cycles and that visual, radio, and X-ray telescopes may be use ...
SAP_Paper1_FutureOfUniverse
... today. Assuming that our species is in it for the long run there are many cosmological events that our distant descendants will observe along with many things that will only occur long after we have any chance of being alive. We often think of the universe on a larger scale to be static and unchangi ...
... today. Assuming that our species is in it for the long run there are many cosmological events that our distant descendants will observe along with many things that will only occur long after we have any chance of being alive. We often think of the universe on a larger scale to be static and unchangi ...
Lecture5 - Tufts Institute of Cosmology
... • Sun moved away from the Center of the Galaxy – Shapley is right • There are other galaxies outside our own – Curtis was right BUT: Both were wrong too about different aspects of the debate. ...
... • Sun moved away from the Center of the Galaxy – Shapley is right • There are other galaxies outside our own – Curtis was right BUT: Both were wrong too about different aspects of the debate. ...
Galaxies and the Universe bb
... have supermassive black holes at their centers. • These black holes seem to be ________ active ...
... have supermassive black holes at their centers. • These black holes seem to be ________ active ...
Astronomy and Cosmology - spring 2003 - final exam
... A) He has made an error in his experiment, since such a speed is considered to be impossible by all previous experiments. B) This "particle" must have been a photon or quantum of electromagnetic radiation of very high energy in order to have traveled this fast. C) This result is acceptable since ato ...
... A) He has made an error in his experiment, since such a speed is considered to be impossible by all previous experiments. B) This "particle" must have been a photon or quantum of electromagnetic radiation of very high energy in order to have traveled this fast. C) This result is acceptable since ato ...
Our Universe
... •These black holes are a million to a billion times more massive than our sun! •Is there a black hole in the center of our Milky Way- YES! •The fundamental descriptions of black holes are based on equations in the theory of general relativity developed by the German-born physicist Albert Einstein. T ...
... •These black holes are a million to a billion times more massive than our sun! •Is there a black hole in the center of our Milky Way- YES! •The fundamental descriptions of black holes are based on equations in the theory of general relativity developed by the German-born physicist Albert Einstein. T ...
~Crowfoot
... a) young stars still in their nursery “open cluster.” b) not physically associated, but aligned along our line of sight. c) in the nearest globular cluster to Earth. 5)2 This world is Io a) 10 AU from the sun b) Io, one of the Galilean moons of Jupiter. c) yellow due to the presence of Uranium ore o ...
... a) young stars still in their nursery “open cluster.” b) not physically associated, but aligned along our line of sight. c) in the nearest globular cluster to Earth. 5)2 This world is Io a) 10 AU from the sun b) Io, one of the Galilean moons of Jupiter. c) yellow due to the presence of Uranium ore o ...
Aug 2015 supplement - Hermanus Astronomy
... the Sun. Far from simple balls of ice and dust, comets have their own life cycles. The latest findings are among the first to show, in detail, how comets change over time. “These strange circular pits are just as deep as they are wide. Rosetta can peer right into them,” said Dennis Bodewits from the ...
... the Sun. Far from simple balls of ice and dust, comets have their own life cycles. The latest findings are among the first to show, in detail, how comets change over time. “These strange circular pits are just as deep as they are wide. Rosetta can peer right into them,” said Dennis Bodewits from the ...
Historical Overview of the Universe
... In the nineteenth century, distances to nearby stars were measured, nebulae were catalogued, and the spectroscopic decomposition of light was learned as the first astrophysical method. In the twentieth century, stellar spectroscopy was developed as a way of determining stellar parameters, in particu ...
... In the nineteenth century, distances to nearby stars were measured, nebulae were catalogued, and the spectroscopic decomposition of light was learned as the first astrophysical method. In the twentieth century, stellar spectroscopy was developed as a way of determining stellar parameters, in particu ...
Super Giant
... Big Bang Theory- 13.7 bya, created gravity, all matter and energy and we are still expanding Nebular Theory- 5-4.6bya supernova created a nebula which gravity pulled together to first form our Sun and then the surrounding planets How does the intensity and dangerousness of energy in the electromagne ...
... Big Bang Theory- 13.7 bya, created gravity, all matter and energy and we are still expanding Nebular Theory- 5-4.6bya supernova created a nebula which gravity pulled together to first form our Sun and then the surrounding planets How does the intensity and dangerousness of energy in the electromagne ...
Old Final
... Fill in your name and ID number on the bubble sheet. Use a #2 pencil on the bubble sheet. Make your bubbles dark and neat. These tests will be available for pick up in my office M-F, 10am-4pm after July 15th and until July 22nd. After this period of time you'll need to email me to set up a time to p ...
... Fill in your name and ID number on the bubble sheet. Use a #2 pencil on the bubble sheet. Make your bubbles dark and neat. These tests will be available for pick up in my office M-F, 10am-4pm after July 15th and until July 22nd. After this period of time you'll need to email me to set up a time to p ...
Slide 1
... • Measuring distances to remote galaxies is difficult, but measuring Doppler shifts (velocities) is easier from spectra • Use Hubble’s Law to estimate biggest distances (really LOOKBACK TIME)! ...
... • Measuring distances to remote galaxies is difficult, but measuring Doppler shifts (velocities) is easier from spectra • Use Hubble’s Law to estimate biggest distances (really LOOKBACK TIME)! ...
Integrative Studies 410 Our Place in the Universe
... Andromeda nebula (“turning” it into a galaxy) • Measured the distance to Andromeda to be 1 million Ly (modern value: 2.2 mill. Ly) • Conclusion: it is 20 times more distant than the milky way’s radius Extragalacticity! Shapley’s theory falsified! ...
... Andromeda nebula (“turning” it into a galaxy) • Measured the distance to Andromeda to be 1 million Ly (modern value: 2.2 mill. Ly) • Conclusion: it is 20 times more distant than the milky way’s radius Extragalacticity! Shapley’s theory falsified! ...
SPACE EXPLORATION UNIT
... It is the same method that astronomers use to measure distances to celestial objects. The figure below describes step by step how. longer the baseline, the more accurate the results providing the angles work. ...
... It is the same method that astronomers use to measure distances to celestial objects. The figure below describes step by step how. longer the baseline, the more accurate the results providing the angles work. ...
Astronomy Notes: Deep Space
... 4.hydrogen formed….lots of it 5.first stars formed from hydrogen: stars began thermonuclear fusion: turning hydrogen into helium in the core: E=mc2 6.over time, stars gathered together in galaxies of millions to billions of stars 7.our galaxy is the Milky Way Galaxy: draw it here http://hubblesite. ...
... 4.hydrogen formed….lots of it 5.first stars formed from hydrogen: stars began thermonuclear fusion: turning hydrogen into helium in the core: E=mc2 6.over time, stars gathered together in galaxies of millions to billions of stars 7.our galaxy is the Milky Way Galaxy: draw it here http://hubblesite. ...
Chapter 9 / Adobe Acrobat Document
... to those aboard the shuttle—seven astronauts died during the Challenger launch disaster and another seven astronauts died when Columbia broke up on re-entry. 28. Hubble and Humason’s distance-redshift relationship: the universe’s expansion has been confirmed by observations at very large distances a ...
... to those aboard the shuttle—seven astronauts died during the Challenger launch disaster and another seven astronauts died when Columbia broke up on re-entry. 28. Hubble and Humason’s distance-redshift relationship: the universe’s expansion has been confirmed by observations at very large distances a ...
Are we alone? - School of Physics
... would have had little effect. • In 2004, the same experiment would have devastating consequences (e.g., financial system collapses, no electricity, no water, no fuel, no public transport). • This process will accelerate. • There will come a point when the machines are in control. • We are becoming m ...
... would have had little effect. • In 2004, the same experiment would have devastating consequences (e.g., financial system collapses, no electricity, no water, no fuel, no public transport). • This process will accelerate. • There will come a point when the machines are in control. • We are becoming m ...
PHYS 175 (2014) Final Examination Name: ___SOLUTION_____
... 30. This graph (below, for which the 2011 Nobel Prize was awarded) shows the apparent magnitude versus redshift for supernovae in distant galaxies. The data points are mostly in the blue region, which means that the expansion of the universe ...
... 30. This graph (below, for which the 2011 Nobel Prize was awarded) shows the apparent magnitude versus redshift for supernovae in distant galaxies. The data points are mostly in the blue region, which means that the expansion of the universe ...
Mysteries of Space
... because of this and based on light emission and comparison to our galaxy scientists have concluded it is similar in mass to the Milky Way • Dark matter appears around the Andromeda Galaxy • Dark matter is the most abundant form of matter in the universe: invisible to telescopes ...
... because of this and based on light emission and comparison to our galaxy scientists have concluded it is similar in mass to the Milky Way • Dark matter appears around the Andromeda Galaxy • Dark matter is the most abundant form of matter in the universe: invisible to telescopes ...
Galaxies - Wallkill Valley Regional High School
... What are galaxies? Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses ...
... What are galaxies? Galaxies contain millions or billions of stars held together by gravity Gravity holds galaxies together in clusters Clusters of galaxies can form even larger groups called superclusters How do we see galaxies? We can see our own Milky Way without the use of a telescope Spyglasses ...
Handout from Allaire Star Party
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
... Earth would be about the size of a pea. If you placed the beach ball on one goal line of a football field, the Earth would be at about the fifty-yard line. Pluto would be about 20 football fields away from the Sun. How far away are the closest stars? Imagine now that the Sun is shrunk even further, ...
Sky News – March 2015 The Realm of the Galaxies
... The North Galactic Pole, the point in the sky directly over the centre of our galaxy, is in the constellation Coma Bernices. With our night sky pointing away from the hustle and bustle of the plane of the Milky Way, we can see deep into the sky without objects being obscured or dimmed by looking thr ...
... The North Galactic Pole, the point in the sky directly over the centre of our galaxy, is in the constellation Coma Bernices. With our night sky pointing away from the hustle and bustle of the plane of the Milky Way, we can see deep into the sky without objects being obscured or dimmed by looking thr ...
Observable universe
The observable universe consists of the galaxies and other matter that can, in principle, be observed from Earth at the present time because light and other signals from these objects has had time to reach the Earth since the beginning of the cosmological expansion. Assuming the universe is isotropic, the distance to the edge of the observable universe is roughly the same in every direction. That is, the observable universe is a spherical volume (a ball) centered on the observer. Every location in the Universe has its own observable universe, which may or may not overlap with the one centered on Earth.The word observable used in this sense does not depend on whether modern technology actually permits detection of radiation from an object in this region (or indeed on whether there is any radiation to detect). It simply indicates that it is possible in principle for light or other signals from the object to reach an observer on Earth. In practice, we can see light only from as far back as the time of photon decoupling in the recombination epoch. That is when particles were first able to emit photons that were not quickly re-absorbed by other particles. Before then, the Universe was filled with a plasma that was opaque to photons.The surface of last scattering is the collection of points in space at the exact distance that photons from the time of photon decoupling just reach us today. These are the photons we detect today as cosmic microwave background radiation (CMBR). However, with future technology, it may be possible to observe the still older relic neutrino background, or even more distant events via gravitational waves (which also should move at the speed of light). Sometimes astrophysicists distinguish between the visible universe, which includes only signals emitted since recombination—and the observable universe, which includes signals since the beginning of the cosmological expansion (the Big Bang in traditional cosmology, the end of the inflationary epoch in modern cosmology). According to calculations, the comoving distance (current proper distance) to particles from the CMBR, which represent the radius of the visible universe, is about 14.0 billion parsecs (about 45.7 billion light years), while the comoving distance to the edge of the observable universe is about 14.3 billion parsecs (about 46.6 billion light years), about 2% larger.The best estimate of the age of the universe as of 2015 is 7010137990000000000♠13.799±0.021 billion years but due to the expansion of space humans are observing objects that were originally much closer but are now considerably farther away (as defined in terms of cosmological proper distance, which is equal to the comoving distance at the present time) than a static 13.8 billion light-years distance. It is estimated that the diameter of the observable universe is about 28 gigaparsecs (91 billion light-years, 8.8×1026 metres or 5.5×1023 miles), putting the edge of the observable universe at about 46–47 billion light-years away.