Standard EPS Shell Presentation
... Stars that fall into the band that stretches diagonally from cool, dim stars to hot, bright stars are called main sequence stars. ...
... Stars that fall into the band that stretches diagonally from cool, dim stars to hot, bright stars are called main sequence stars. ...
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, ...
Astronomy Campus Assessment
... A. The other stars have a smaller diameter than the sun. B. The sun is the largest and brightest star in the Milky Way galaxy. C. The sun is many times closer to Earth than any other star. D. The sun will one day become a supergiant. ...
... A. The other stars have a smaller diameter than the sun. B. The sun is the largest and brightest star in the Milky Way galaxy. C. The sun is many times closer to Earth than any other star. D. The sun will one day become a supergiant. ...
ASTR 101 Scale of the Universe: an Overview
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
Physics - Content by Unit
... dark matter in the early 1930s while studying how galaxies move within the Coma Cluster. The Coma Cluster consists of approximately 1,000 galaxies spread over about two degrees on the sky—roughly the size of your thumb held at arm's length, and four times the size of the Sun and the Moon seen from E ...
... dark matter in the early 1930s while studying how galaxies move within the Coma Cluster. The Coma Cluster consists of approximately 1,000 galaxies spread over about two degrees on the sky—roughly the size of your thumb held at arm's length, and four times the size of the Sun and the Moon seen from E ...
PH109 Exploring the Uiverse, Test #4, Spring, 1999
... b) because it got sheered off during a galactic collision c) the outer parts were torn away by the Magallenic clouds d) the dark matter holds it in that formation ...
... b) because it got sheered off during a galactic collision c) the outer parts were torn away by the Magallenic clouds d) the dark matter holds it in that formation ...
Active Galactic Nuclei - University of Toronto
... When viewed in the radio spectrum, one can notice the following: • The nucleus – the centre of the galaxy • Jets - bright lines where strong radio emission streams out from the nucleus • Lobes – region around the jets • Plumes – similar to lobes, yet they have a much more elongated structure, replac ...
... When viewed in the radio spectrum, one can notice the following: • The nucleus – the centre of the galaxy • Jets - bright lines where strong radio emission streams out from the nucleus • Lobes – region around the jets • Plumes – similar to lobes, yet they have a much more elongated structure, replac ...
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 ...
THE MILKY WAY GALAXY
... The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters were mapped out, indicating that the galactic center was located thousands of light years distant, towards the const ...
... The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters were mapped out, indicating that the galactic center was located thousands of light years distant, towards the const ...
Galaxy and Beyond
... THE MILKY WAY GALAXY & OUR SUN’S PLACE IN IT • Our Sun is one of about 200 billion stars in the Milky Way Galaxy • Diameter: • 60,000-100,000 light-years across! • Disk-shaped w/ bulging center ...
... THE MILKY WAY GALAXY & OUR SUN’S PLACE IN IT • Our Sun is one of about 200 billion stars in the Milky Way Galaxy • Diameter: • 60,000-100,000 light-years across! • Disk-shaped w/ bulging center ...
OGT TYPE QUESTIONS
... ANSWER: B Nuclear fusion is the process by which two or more nuclei with small masses (such as hydrogen) join together, or fuse, to form a larger, more massive nucleus (such as helium). During this process, a massive amount of energy and radioactive emissions (such as gamma rays) are produced. Combu ...
... ANSWER: B Nuclear fusion is the process by which two or more nuclei with small masses (such as hydrogen) join together, or fuse, to form a larger, more massive nucleus (such as helium). During this process, a massive amount of energy and radioactive emissions (such as gamma rays) are produced. Combu ...
Answers for the HST Scavenger Hunt
... The spherical outer boundary of a black hole. Once matter crosses this threshold, the speed required for it to escape the black hole’s gravitational grip is greater than the speed of light. When scientists used the HST to study Cygnus X-1, they were able to observe two of these events, which defines ...
... The spherical outer boundary of a black hole. Once matter crosses this threshold, the speed required for it to escape the black hole’s gravitational grip is greater than the speed of light. When scientists used the HST to study Cygnus X-1, they were able to observe two of these events, which defines ...
Astronomy 104: Homework Set 6 Due: Wednesday, April 1, 2015
... b) Let’s say that from Earth we observe that a Cepheid in the LMC has a period of 100 days and a Cepheid in M 31 has a period of 5.2 days. Use the PL relation you discovered in part (a) of this problem to estimate the luminosities of these stars. c) The Cepheid in the LMC is 10000 times brighter tha ...
... b) Let’s say that from Earth we observe that a Cepheid in the LMC has a period of 100 days and a Cepheid in M 31 has a period of 5.2 days. Use the PL relation you discovered in part (a) of this problem to estimate the luminosities of these stars. c) The Cepheid in the LMC is 10000 times brighter tha ...
Infinity Express
... Hand out a galaxy page to each student. Explain that galaxies in the Universe have different shapes and sizes and that our own galaxy – the Milky Way – is quite an average galaxy! Introduce three shapes of galaxies: o Spiral – shaped like a pinwheel o Barred Spiral – shaped like a pinwheel, but with ...
... Hand out a galaxy page to each student. Explain that galaxies in the Universe have different shapes and sizes and that our own galaxy – the Milky Way – is quite an average galaxy! Introduce three shapes of galaxies: o Spiral – shaped like a pinwheel o Barred Spiral – shaped like a pinwheel, but with ...
~Crowfoot
... a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s sky. c) is the light from an embedded blue star. 3)2 The “Pillars of Creation” on this image Eagle Nebula a) show the destruction of a nebula by a supernova explosion b) are the jets from a young ...
... a) arises from the Balmer γ transition. b) is due to preferential scattering of blue light as in Earth’s sky. c) is the light from an embedded blue star. 3)2 The “Pillars of Creation” on this image Eagle Nebula a) show the destruction of a nebula by a supernova explosion b) are the jets from a young ...
Milky Way galaxy - Uplift North Hills Prep
... Before October 6, 1923, astronomers thought the Andromeda Nebula and similar objects were bright pockets of matter inside the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Ceph ...
... Before October 6, 1923, astronomers thought the Andromeda Nebula and similar objects were bright pockets of matter inside the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Ceph ...
The Sun, Stars, and Beyond
... exist for up to 200 Billion years. • Stars between 80% Ms and 140% Ms are like our sun, and live about 10 billion years. • Stars* between 140% Ms and 300% Ms live only about 10 million years and explode when they die. • Stars* >300% Ms collapse completely out of the Universe and become Black Holes. ...
... exist for up to 200 Billion years. • Stars between 80% Ms and 140% Ms are like our sun, and live about 10 billion years. • Stars* between 140% Ms and 300% Ms live only about 10 million years and explode when they die. • Stars* >300% Ms collapse completely out of the Universe and become Black Holes. ...
The Milky Way
... It's a hundred thousand light years side to side. It bulges in the middle, sixteen thousand light years thick, But out by us, it's just three thousand light years wide. We're thirty thousand light years from galactic central point. We go 'round every two hundred million years, And our galaxy is only ...
... It's a hundred thousand light years side to side. It bulges in the middle, sixteen thousand light years thick, But out by us, it's just three thousand light years wide. We're thirty thousand light years from galactic central point. We go 'round every two hundred million years, And our galaxy is only ...
Messier Galaxies of #202541
... Rho Virginis and 4 dim stars near 6 Coma Berenicis. Rho and 6 Coma will be important guide stars. These stars have been plotted in figure 1. Notice that the dimmers stars have not been designated by their common names, but by their magnitudes. The decimal has been left out to avoid mistaking it for ...
... Rho Virginis and 4 dim stars near 6 Coma Berenicis. Rho and 6 Coma will be important guide stars. These stars have been plotted in figure 1. Notice that the dimmers stars have not been designated by their common names, but by their magnitudes. The decimal has been left out to avoid mistaking it for ...
The Runaway Universe - Astronomy & Astrophysics Group
... through so many ages have been resolved, and we are at last freed from wordy debates about it. The galaxy is, in fact, nothing but a collection of innumerable stars grouped together in clusters. Upon whatever part of it the telescope is directed, a vast crowd of stars is immediately presented to vie ...
... through so many ages have been resolved, and we are at last freed from wordy debates about it. The galaxy is, in fact, nothing but a collection of innumerable stars grouped together in clusters. Upon whatever part of it the telescope is directed, a vast crowd of stars is immediately presented to vie ...
THE BIG BANG - Dublin City Schools
... more distant galaxies had higher redshifts (light takes millions or even billions of years to reach us from a distant galaxy) This means we are seeing an image from millions or billions of years ago. He noticed that the light, when it was emitted, would have shorter wavelengths. But, he observed lon ...
... more distant galaxies had higher redshifts (light takes millions or even billions of years to reach us from a distant galaxy) This means we are seeing an image from millions or billions of years ago. He noticed that the light, when it was emitted, would have shorter wavelengths. But, he observed lon ...
Standard Set 2 - Atascadero High School
... heavier than iron. This type can be carried out only by adding neutrons to a preexisting heavy element that forms a “seed.” Neutrons are available only during a limited portion of a star’s lifetime, particularly during the brief supernova that occurs when a massive star dies. Section D Students know ...
... heavier than iron. This type can be carried out only by adding neutrons to a preexisting heavy element that forms a “seed.” Neutrons are available only during a limited portion of a star’s lifetime, particularly during the brief supernova that occurs when a massive star dies. Section D Students know ...
Galaxy
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A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas and dust, and dark matter. The word galaxy is derived from the Greek galaxias (γαλαξίας), literally ""milky"", a reference to the Milky Way. Galaxies range in size from dwarfs with just a few thousand (103) stars to giants with one hundred trillion (1014) stars, each orbiting their galaxy's own center of mass. Galaxies are categorized according to their visual morphology, including elliptical, spiral, and irregular. Many galaxies are thought to have black holes at their active centers. The Milky Way's central black hole, known as Sagittarius A*, has a mass four million times greater than our own Sun. As of July 2015, EGSY8p7 is the oldest and most distant galaxy with a light travel distance of 13.2 billion light-years from Earth, and observed as it existed 570 million years after the Big Bang. Previously, as of May 2015, EGS-zs8-1 was the most distant known galaxy, estimated to have a light travel distance of 13.1 billion light-years away and to have 15% of the mass of the Milky Way.Approximately 170 billion (1.7 × 1011) to 200 billion (2.0 × 1011) galaxies exist in the observable universe. Most of the galaxies are 1,000 to 100,000 parsecs in diameter and usually separated by distances on the order of millions of parsecs (or megaparsecs). The space between galaxies is filled with a tenuous gas with an average density less than one atom per cubic meter. The majority of galaxies are gravitationally organized into associations known as galaxy groups, clusters, and superclusters. At the largest scale, these associations are generally arranged into sheets and filaments that are surrounded by immense voids.