*Death of the Sun* * Video Questions
... (the black hole's gravity is so strong that light can't go fast enough to escape it) 8. If we can’t see black holes, how do we know they exist? (stars orbiting around "nothing") 9. What happens to a star if it passes too close to a black hole? (gravity whips it around super-fast, like a slingshot) 1 ...
... (the black hole's gravity is so strong that light can't go fast enough to escape it) 8. If we can’t see black holes, how do we know they exist? (stars orbiting around "nothing") 9. What happens to a star if it passes too close to a black hole? (gravity whips it around super-fast, like a slingshot) 1 ...
Galaxy Life Stories: Growing Up in a Violent Universe
... A: The rare high-mass cases probably are. But the lower mass ones are too common, have too much gas, and aren’t disturbed enough. ...
... A: The rare high-mass cases probably are. But the lower mass ones are too common, have too much gas, and aren’t disturbed enough. ...
Galaxies: 33.1
... Milky Way (cont.) • It would take 100,000 light years to cross the MW. • Using visible light, we cannot see the center of the galaxy. Therefore, astronomers have to use other wavelengths to make observations. This picture was taken with light from the infrared region of the electromagnetic spectrum ...
... Milky Way (cont.) • It would take 100,000 light years to cross the MW. • Using visible light, we cannot see the center of the galaxy. Therefore, astronomers have to use other wavelengths to make observations. This picture was taken with light from the infrared region of the electromagnetic spectrum ...
Andromeda *ruler of men*
... Andromeda is an autumn constellation that is V shaped the best time of year to view Andromeda is during the month of November with the suggested time being 9pm. It occupies 722 square degrees and is located close to the North Pole in the first quadrant of the Northern Hemisphere. Andromeda can be s ...
... Andromeda is an autumn constellation that is V shaped the best time of year to view Andromeda is during the month of November with the suggested time being 9pm. It occupies 722 square degrees and is located close to the North Pole in the first quadrant of the Northern Hemisphere. Andromeda can be s ...
Life Cycle of Stars
... Expanding Universe Edwin Hubble devised a classification system for galaxies and categorized than content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate co ...
... Expanding Universe Edwin Hubble devised a classification system for galaxies and categorized than content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate co ...
The Universe and Galaxies - West Jefferson Local Schools
... sun to earth - the farther away an object/star is, the longer it takes for light to get to us, and the older the light is when it gets to us = “Light is OLD” - we see the past of other stars in the night sky ...
... sun to earth - the farther away an object/star is, the longer it takes for light to get to us, and the older the light is when it gets to us = “Light is OLD” - we see the past of other stars in the night sky ...
Tyler Gray - Angelfire
... And VI (also called the Pegasus dwarf), and And VII (also Cassiopeia dwarf). The Andromeda Galaxy is in notable interaction with its companion M32, which is apparently responsible for a considerable amount of disturbance in the spiral structure of M31. The arms of neutral hydrogene are displaced fro ...
... And VI (also called the Pegasus dwarf), and And VII (also Cassiopeia dwarf). The Andromeda Galaxy is in notable interaction with its companion M32, which is apparently responsible for a considerable amount of disturbance in the spiral structure of M31. The arms of neutral hydrogene are displaced fro ...
PH109 Exploring the Uiverse, Test #4, Spring, 1999
... 16. The relationship which equates distance with redshift velocity is called a) Hubble’s Law b) Law of Redshifts c) Einstein’s Law d) Doppler’s Law 17. Einstein’s ring is a) a planetary nebula b) when the image of one galaxy gravitationally distorts the image of another c) the effect that people liv ...
... 16. The relationship which equates distance with redshift velocity is called a) Hubble’s Law b) Law of Redshifts c) Einstein’s Law d) Doppler’s Law 17. Einstein’s ring is a) a planetary nebula b) when the image of one galaxy gravitationally distorts the image of another c) the effect that people liv ...
The Universe and Galaxies - West Jefferson Local Schools
... sun to earth - the farther away an object/star is, the longer it takes for light to get to us, and the older the light is when it gets to us = “Light is OLD” - we see the past of other stars in the night sky ...
... sun to earth - the farther away an object/star is, the longer it takes for light to get to us, and the older the light is when it gets to us = “Light is OLD” - we see the past of other stars in the night sky ...
Practice Questions for Final
... Which of the following does NOT support the theory that active galactic nuclei are powered by accretion disks around massive black holes? A. Spectral lines from the galactic center indicate that clouds of gas are orbiting a central object at very high speed. B. The total amount of radiation coming f ...
... Which of the following does NOT support the theory that active galactic nuclei are powered by accretion disks around massive black holes? A. Spectral lines from the galactic center indicate that clouds of gas are orbiting a central object at very high speed. B. The total amount of radiation coming f ...
Galaxy
... galaxies other than our Milky Way exist Hubble used Cepheid variable stars to measure the distances to galaxies Hubble also photographed stars in the Andromeda “Nebula” The universe contains an estimated 100 billion galaxies. Each of these galaxies contains about 100 billion stars ...
... galaxies other than our Milky Way exist Hubble used Cepheid variable stars to measure the distances to galaxies Hubble also photographed stars in the Andromeda “Nebula” The universe contains an estimated 100 billion galaxies. Each of these galaxies contains about 100 billion stars ...
Classification and structure of galaxies
... How do we know what our Galaxy looks like? We can see: • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat genera ...
... How do we know what our Galaxy looks like? We can see: • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat genera ...
Mysteries of Space
... • Astronomers have studied it at length 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: invis ...
... • Astronomers have studied it at length 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: invis ...
The Milky Way Galaxy
... 1. assumed all stars identical so that brightness gave distance 2. did not know about dark clouds and interstellar extinction… ...
... 1. assumed all stars identical so that brightness gave distance 2. did not know about dark clouds and interstellar extinction… ...
Andromeda Galaxy
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The Andromeda Galaxy (/ænˈdrɒmɨdə/), also known as Messier 31, M31, or NGC 224, is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth. It is the nearest major galaxy to the Milky Way and was often referred to as the Great Andromeda Nebula in older texts. It received its name from the area of the sky in which it appears, the constellation of Andromeda, which was named after the mythological princess Andromeda. Being approximately 220,000 light years across, it is the largest galaxy of the Local Group, which also contains the Milky Way, the Triangulum Galaxy, and about 44 other smaller galaxies.The Andromeda Galaxy is the most massive galaxy in the Local Group as well. Despite earlier findings that suggested that the Milky Way contains more dark matter and could be the most massive in the grouping, the 2006 observations by the Spitzer Space Telescope revealed that Andromeda contains one trillion (1012) stars: at least twice the number of stars in the Milky Way, which is estimated to be 200–400 billion.The Andromeda Galaxy is estimated to be 1.5×1012 solar masses, while the mass of the Milky Way is estimated to be 8.5×1011 solar masses. In comparison, a 2009 study estimated that the Milky Way and M31 are about equal in mass, while a 2006 study put the mass of the Milky Way at ~80% of the mass of the Andromeda Galaxy. The Milky Way and Andromeda are expected to collide in 3.75 billion years, eventually merging to form a giant elliptical galaxy or perhaps a large disk galaxy.At 3.4, the apparent magnitude of the Andromeda Galaxy is one of the brightest of any of the Messier objects, making it visible to the naked eye on moonless nights even when viewed from areas with moderate light pollution. Although it appears more than six times as wide as the full Moon when photographed through a larger telescope, only the brighter central region is visible to the naked eye or when viewed using binoculars or a small telescope and would it hence appear to be but another star.