E1 Introduction to the universe
... evidence that lots of ordinary matter does exist in these groupings. These can be thought of as low-mass failed stars or high-mass planets. They could even be black holes. These would produce little or no light. some fundamental particles (neutrinos) are known to exist in huge numbers. It is not kno ...
... evidence that lots of ordinary matter does exist in these groupings. These can be thought of as low-mass failed stars or high-mass planets. They could even be black holes. These would produce little or no light. some fundamental particles (neutrinos) are known to exist in huge numbers. It is not kno ...
Oct 06, 2001
... This is a” thinking” question: Star A appears brighter than Star B, but Star A actually gives off less energy than Star B. The apparent magnitude and absolute magnitudes for Star A are m = 1 and M = -2, respectively. Use this information to answer the following two questions. 13) Which of the follow ...
... This is a” thinking” question: Star A appears brighter than Star B, but Star A actually gives off less energy than Star B. The apparent magnitude and absolute magnitudes for Star A are m = 1 and M = -2, respectively. Use this information to answer the following two questions. 13) Which of the follow ...
Origins of the Universe
... • Planets are mostly round due to the effects of gravity • Over time, as the nebula spins, it flattens into a disk-like shape • Planets and other objects (e.g., asteroids) form in the flat plane of the disk – hence why the orbits of planets in our solar system are largely in the same plane – all rev ...
... • Planets are mostly round due to the effects of gravity • Over time, as the nebula spins, it flattens into a disk-like shape • Planets and other objects (e.g., asteroids) form in the flat plane of the disk – hence why the orbits of planets in our solar system are largely in the same plane – all rev ...
EX - Uplift North Hills Prep
... (a) Explain why a star having a mass of 50 times the solar mass would be expected to have a lifetime of many times less than that of the Sun. (a) The more massive stars will have much more nuclear material (initially hydrogen). Massive stars have greater gravity so equilibrium is reached at a highe ...
... (a) Explain why a star having a mass of 50 times the solar mass would be expected to have a lifetime of many times less than that of the Sun. (a) The more massive stars will have much more nuclear material (initially hydrogen). Massive stars have greater gravity so equilibrium is reached at a highe ...
Nebulas - WLWV Staff Blogs
... form between stars. They form in regions where gas, dust, and other materials clump together to create larger masses, which then gather other material until they become big enough to be known as stars. ...
... form between stars. They form in regions where gas, dust, and other materials clump together to create larger masses, which then gather other material until they become big enough to be known as stars. ...
The Scale of the Realms of the Universe
... • This region is inside a large bubble of hot interstellar gas called the Local Bubble. Here the gas temperature is about 1 million degrees Kelvin, and the density is 1,000 times less than average interstellar space. Milky Way Galaxy • The Milky Way Galaxy is a giant disk of stars 160,000 light-year ...
... • This region is inside a large bubble of hot interstellar gas called the Local Bubble. Here the gas temperature is about 1 million degrees Kelvin, and the density is 1,000 times less than average interstellar space. Milky Way Galaxy • The Milky Way Galaxy is a giant disk of stars 160,000 light-year ...
sc_examII_fall_2002 - University of Maryland
... D. a few thousand miles away. E. at the Moon’s distance. 13. A planetary nebula, like the Ring Nebula shown in class, is A. evidence that planets exist around other stars. B. gas that is about to collapse and form planets. C. a giant molecular cloud that is about to form new stars. D. a very dense ...
... D. a few thousand miles away. E. at the Moon’s distance. 13. A planetary nebula, like the Ring Nebula shown in class, is A. evidence that planets exist around other stars. B. gas that is about to collapse and form planets. C. a giant molecular cloud that is about to form new stars. D. a very dense ...
Small images
... and SWIFT satellites. These bursts did not come from star forming regions, and in fact showed all the characteristics expected of merging neutron stars. It is widely believed that merging neutron stars (and neutron stars merging with black holes) have now been observed as short hard gamma-ray bursts ...
... and SWIFT satellites. These bursts did not come from star forming regions, and in fact showed all the characteristics expected of merging neutron stars. It is widely believed that merging neutron stars (and neutron stars merging with black holes) have now been observed as short hard gamma-ray bursts ...
Chapter 12 Quiz, Nov. 28, 2012, Astro 162, Section 4 12-1
... 12-32. Why are the spiral arms of our Galaxy brighter than the regions between them? The O and B stars formed in the spiral arms explode as supernovae before they emerge from the arms. Therefore, these stars are not found between the arms of spiral galaxies. 12-33. Describe the Sun’s motion through ...
... 12-32. Why are the spiral arms of our Galaxy brighter than the regions between them? The O and B stars formed in the spiral arms explode as supernovae before they emerge from the arms. Therefore, these stars are not found between the arms of spiral galaxies. 12-33. Describe the Sun’s motion through ...
pptx
... the gas forming the young star heats up as the star contracts the increased pressure causes jets of gas to be emitted from the poles of the young star conversion of gravitational energy to ...
... the gas forming the young star heats up as the star contracts the increased pressure causes jets of gas to be emitted from the poles of the young star conversion of gravitational energy to ...
Galaxies - Indiana University Astronomy
... measured. The optical spectrum of the galaxy is shown at the top of the spectrum page. Shown are many different spectral features, including absorption lines and emission lines, superimposed on continuum emission from the galaxy, over the entire visible-light spectrum. Below the full optical spectru ...
... measured. The optical spectrum of the galaxy is shown at the top of the spectrum page. Shown are many different spectral features, including absorption lines and emission lines, superimposed on continuum emission from the galaxy, over the entire visible-light spectrum. Below the full optical spectru ...
Study Guide
... For Jupiter to be a star, what would need to be different about it? What are Trojan Asteroids, and where are they located? (Where are the regular asteroids, for that matter?) What probes have visited Jupiter and when? Which comet crashed into Jupiter, and when? How far away from Jupiter are its four ...
... For Jupiter to be a star, what would need to be different about it? What are Trojan Asteroids, and where are they located? (Where are the regular asteroids, for that matter?) What probes have visited Jupiter and when? Which comet crashed into Jupiter, and when? How far away from Jupiter are its four ...
THE UNIVERSE - - GRADE 9, UNIT 4 (4 weeks)
... 2. A galaxy is a group of billions of individual stars, star systems, star clusters, dust and gas bound together by gravity. 3. There are billions of galaxies in the universe, and they are classified by size and shape. a. Milky Way is a spiral galaxy; has more than 100 billion stars and a diameter o ...
... 2. A galaxy is a group of billions of individual stars, star systems, star clusters, dust and gas bound together by gravity. 3. There are billions of galaxies in the universe, and they are classified by size and shape. a. Milky Way is a spiral galaxy; has more than 100 billion stars and a diameter o ...
Cosmology
... Describe and explain asteroids and meteorites and that these usually vaporize on entering the Earth’s atmosphere. Binary stars- most stars are part of a binary system and rotate around their common centre of mass. The Big Bang Discuss cosmic background radiation and its discovery. Talk about the sig ...
... Describe and explain asteroids and meteorites and that these usually vaporize on entering the Earth’s atmosphere. Binary stars- most stars are part of a binary system and rotate around their common centre of mass. The Big Bang Discuss cosmic background radiation and its discovery. Talk about the sig ...
What do we mean by habitable zone?
... (373/288)−2 ×1 AU= 0.6 AU to (273/288)−1 ×1 AU= 1.1 AU. In principle this would include Venus but not Mars. As an indication of how different assumptions can change the range, I have also seen ranges such as 0.95 AU to 1.37 AU for the habitable zone. It’s not exact. One reason is that there are many ...
... (373/288)−2 ×1 AU= 0.6 AU to (273/288)−1 ×1 AU= 1.1 AU. In principle this would include Venus but not Mars. As an indication of how different assumptions can change the range, I have also seen ranges such as 0.95 AU to 1.37 AU for the habitable zone. It’s not exact. One reason is that there are many ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.