Classification and structure of galaxies
... • takes our Solar System about 200 million years to revolve once around our galaxy ...
... • takes our Solar System about 200 million years to revolve once around our galaxy ...
The Universe and Galaxies - West Jefferson Local Schools
... - ________ - grouping of millions or billions of stars, and dust and gas held together by gravity - there are an estimated ________ billion galaxies in the universe A. 3 Types of Galaxies - classified by ________ 1. ________ - disk shaped with spiral arms of dust and gas (fig 26-15, pg. 831) - dust ...
... - ________ - grouping of millions or billions of stars, and dust and gas held together by gravity - there are an estimated ________ billion galaxies in the universe A. 3 Types of Galaxies - classified by ________ 1. ________ - disk shaped with spiral arms of dust and gas (fig 26-15, pg. 831) - dust ...
The Universe and Galaxies - West Jefferson Local Schools
... - ________ - grouping of millions or billions of stars, and dust and gas held together by gravity - there are an estimated ________ billion galaxies in the universe A. 3 Types of Galaxies - classified by ________ 1. ________ - disk shaped with spiral arms of dust and gas (fig 26-15, pg. 831) - dust ...
... - ________ - grouping of millions or billions of stars, and dust and gas held together by gravity - there are an estimated ________ billion galaxies in the universe A. 3 Types of Galaxies - classified by ________ 1. ________ - disk shaped with spiral arms of dust and gas (fig 26-15, pg. 831) - dust ...
Document
... •Distributed roughly uniformly (actually it is quite clumpy) •Travels on ~ circular orbits around the Galactic center Non-circular motion of gas near the Galactic center due to galactic bar From Oort, Kerr and Westerhout ...
... •Distributed roughly uniformly (actually it is quite clumpy) •Travels on ~ circular orbits around the Galactic center Non-circular motion of gas near the Galactic center due to galactic bar From Oort, Kerr and Westerhout ...
Our Galaxy and the Universe
... hurling this material outward creating the universe. • The red shift of ...
... hurling this material outward creating the universe. • The red shift of ...
new_qwk11
... ruler is measured to be longer than its twin ruler at rest D. The mass or inertia of an object decreases when its speed approaches the speed of light ...
... ruler is measured to be longer than its twin ruler at rest D. The mass or inertia of an object decreases when its speed approaches the speed of light ...
General Astrophysical Concepts: Astronomical length scales
... nucleus of a quasar is about five million times the mass of our Sun The light-emitting region of a typical quasar is comparable in size to our Solar System Quasars and AGNs can be 100 to 1000 times more luminous than our Milky Way galaxy Most galaxies have massive black holes at their centers ...
... nucleus of a quasar is about five million times the mass of our Sun The light-emitting region of a typical quasar is comparable in size to our Solar System Quasars and AGNs can be 100 to 1000 times more luminous than our Milky Way galaxy Most galaxies have massive black holes at their centers ...
Galaxies - schoolphysics
... The life of the Universe A long, long time ago there was nothing. No stars, no galaxies, no planets, no life, no space and no time! Some time in the distant past, astronomers think that this was about 14,000 million years ago, there was an enormous explosion. An enormous amount of energy was release ...
... The life of the Universe A long, long time ago there was nothing. No stars, no galaxies, no planets, no life, no space and no time! Some time in the distant past, astronomers think that this was about 14,000 million years ago, there was an enormous explosion. An enormous amount of energy was release ...
PC2491 Examples 2
... In the same region hydrogen atoms have a density of 106 m-3. Assume the hydrogen atoms to be elastic spheres of radius 10-8 m and only interact by direct collision. Estimate their mean free path. (5) A spiral galaxy has a rotation curve that is flat with Vcirc= 180 km s-1. Estimate the values of Oor ...
... In the same region hydrogen atoms have a density of 106 m-3. Assume the hydrogen atoms to be elastic spheres of radius 10-8 m and only interact by direct collision. Estimate their mean free path. (5) A spiral galaxy has a rotation curve that is flat with Vcirc= 180 km s-1. Estimate the values of Oor ...
Exam 3 Study Guide
... Questions you can answer to study. See if you can write your own multiple choice question for these topics! What are three properties that distinguish elliptical galaxies from spiral galaxies? How do spiral galaxies form? How do elliptical galaxies form? Where in a spiral galaxy might you find star ...
... Questions you can answer to study. See if you can write your own multiple choice question for these topics! What are three properties that distinguish elliptical galaxies from spiral galaxies? How do spiral galaxies form? How do elliptical galaxies form? Where in a spiral galaxy might you find star ...
Evidence of the Big Bang and Structure of the Universe
... In the diagram below, the spectral lines of hydrogen gas from three galaxies, A, B, and C, are compared to the spectral lines of hydrogen gas observed in a laboratory. A) Galaxy B is moving away from Earth, but galaxies A and C are moving toward Earth. B) Galaxy A is moving away from Earth, but gala ...
... In the diagram below, the spectral lines of hydrogen gas from three galaxies, A, B, and C, are compared to the spectral lines of hydrogen gas observed in a laboratory. A) Galaxy B is moving away from Earth, but galaxies A and C are moving toward Earth. B) Galaxy A is moving away from Earth, but gala ...
Astronomy 114 Problem Set # 7 Due: 30 Apr 2007 SOLUTIONS 1
... The distance of galaxies are often measured using standard candles. However, these methods must be calibrated by accurately determining their properties from very nearby standard candles. One example is the Cepheid Variable that we often use to determine the distance of galaxies. By accurately measu ...
... The distance of galaxies are often measured using standard candles. However, these methods must be calibrated by accurately determining their properties from very nearby standard candles. One example is the Cepheid Variable that we often use to determine the distance of galaxies. By accurately measu ...
galaxy.
... 1) Out to 10 million pc (~30 million with HST): Cepheids, O and B stars, supergiants. 2) Tully-Fisher relationship: (100 million pc) There is a relationship between the line width of a galaxy in neutral hydrogen radiation, which measures rotation speed of a galaxy, which is a measure of its mass, an ...
... 1) Out to 10 million pc (~30 million with HST): Cepheids, O and B stars, supergiants. 2) Tully-Fisher relationship: (100 million pc) There is a relationship between the line width of a galaxy in neutral hydrogen radiation, which measures rotation speed of a galaxy, which is a measure of its mass, an ...
File
... 23) What are the three classifications of galaxies? What do each look like? Which is most common? 24) What shape is the Milky Way? 25) What is the local group? 26) How many stars are in the Milky Way? 27) Approximately how big is the Milky Way 28) The largest known galaxy is what type of galaxy? 29) ...
... 23) What are the three classifications of galaxies? What do each look like? Which is most common? 24) What shape is the Milky Way? 25) What is the local group? 26) How many stars are in the Milky Way? 27) Approximately how big is the Milky Way 28) The largest known galaxy is what type of galaxy? 29) ...
File - 5th Grade Science Almost done!!!!!!!!!
... • Galaxy – huge system of stars, dust and gas held together by gravity ...
... • Galaxy – huge system of stars, dust and gas held together by gravity ...
Watching Galaxies Form Near the Beginning of Time
... Evidence for global winds escaping systems Exist in groupings with bright galaxies/AGN Are these the early units predicted by hierarchical schemes (and fitting dark-matter ...
... Evidence for global winds escaping systems Exist in groupings with bright galaxies/AGN Are these the early units predicted by hierarchical schemes (and fitting dark-matter ...
Galaxies - Wallkill Valley Regional High School
... 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 let us see further at sea and into the skies Telescopes (far-seeing) allow us to see distant galaxies With new technology comes new dis ...
... 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 let us see further at sea and into the skies Telescopes (far-seeing) allow us to see distant galaxies With new technology comes new dis ...
The Milky Way Galaxy
... • The Milky Way galaxy is home to 400 billion stars and our own Sun and Solar System. • It is a barred spiral galaxy. • Scientists think the centre of the galaxy contains a super massive black hole. • The Milky Way is full of dust, gas and stars. • The Milky Way, along with everything else, is ...
... • The Milky Way galaxy is home to 400 billion stars and our own Sun and Solar System. • It is a barred spiral galaxy. • Scientists think the centre of the galaxy contains a super massive black hole. • The Milky Way is full of dust, gas and stars. • The Milky Way, along with everything else, is ...
Universe and Galaxy Short Study Guide
... instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass ...
... instead grew on a diet of gas and stars controlled by their host galaxies in the beginning years of the universe. An initial look at 30 galaxies indicates that black holes do not precede a galaxy’s birth, but instead evolve with the galaxy by trapping an amazingly exact percentage (0.2) of the mass ...
ISP 205 Review Questions, Week 13
... 3. Refer to Figure 15.15 in your textbook, which shows the spectra of two galaxies. The upper spectrum is what we would see if the galaxy were at rest relative to our own galaxy. The lower spectrum is for a galaxy that is moving away from us due to the expansion of the Universe, so that the Doppler ...
... 3. Refer to Figure 15.15 in your textbook, which shows the spectra of two galaxies. The upper spectrum is what we would see if the galaxy were at rest relative to our own galaxy. The lower spectrum is for a galaxy that is moving away from us due to the expansion of the Universe, so that the Doppler ...
Nineteenth lecture
... How many stars in a galaxy? Milky Way: 200 billion; Andromeda: 1 TRILLION! ...
... How many stars in a galaxy? Milky Way: 200 billion; Andromeda: 1 TRILLION! ...
Study Guide_galaxies, Tools, and Stars Test
... 3. What is the name of the galaxy our solar system is located in? 4. What type of galaxy is the Milky Way galaxy? 5. The ________ is the largest star in our solar system. 6. Name and describe the 3 types of galaxies. 7. Where is our solar system located in the Milky Way galaxy? 8. What is a light ye ...
... 3. What is the name of the galaxy our solar system is located in? 4. What type of galaxy is the Milky Way galaxy? 5. The ________ is the largest star in our solar system. 6. Name and describe the 3 types of galaxies. 7. Where is our solar system located in the Milky Way galaxy? 8. What is a light ye ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.