How big are stars? How do we know?
... – If we can see from pictures taken over time that the stars are orbiting each other, the system is a visual binary – If the stars are so close together (or distant from Earth) that their spectra blur together, the system is called a spectroscopic binary – If the stars are oriented edge-on to the Su ...
... – If we can see from pictures taken over time that the stars are orbiting each other, the system is a visual binary – If the stars are so close together (or distant from Earth) that their spectra blur together, the system is called a spectroscopic binary – If the stars are oriented edge-on to the Su ...
Brichler-powerpoint
... alone. If there are 2 stars, it’s called a binary star system – more than 2 stars, it’s called a star cluster. ...
... alone. If there are 2 stars, it’s called a binary star system – more than 2 stars, it’s called a star cluster. ...
Astronomy Fall 2013 Final Exam History of Astronomy Know: speed
... 4.Where was supernova 1987a located? Large Maganellic cloud in a near by galaxy 5. What produces a Type I supernova? Binary star system with a massive star (8 – 12 solar masses) and white dwarf collide 6.What is the Lighthouse model for pulsating stars? A spinning neutron star shooting a beam of lig ...
... 4.Where was supernova 1987a located? Large Maganellic cloud in a near by galaxy 5. What produces a Type I supernova? Binary star system with a massive star (8 – 12 solar masses) and white dwarf collide 6.What is the Lighthouse model for pulsating stars? A spinning neutron star shooting a beam of lig ...
Word doc - UC
... ranging from 0.6 to 1.1 times the Sun’s. Then, with the aid of custom-built software called TERRA, they further looked for evidence of Earth-size planets with orbital periods longer than 50 days. They also quantified the fraction of planets that might have been missed by their census, either because ...
... ranging from 0.6 to 1.1 times the Sun’s. Then, with the aid of custom-built software called TERRA, they further looked for evidence of Earth-size planets with orbital periods longer than 50 days. They also quantified the fraction of planets that might have been missed by their census, either because ...
Chapter 2 Knowing the Heavens
... What is so special about the North Star? 4. Are the same stars visible from any location on Earth? 5. What causes the seasons? Why are they opposite in the northern and southern hemispheres? 6. Has the same star always been the North Star? 7. Can we use the rising and setting of the Sun as the basis ...
... What is so special about the North Star? 4. Are the same stars visible from any location on Earth? 5. What causes the seasons? Why are they opposite in the northern and southern hemispheres? 6. Has the same star always been the North Star? 7. Can we use the rising and setting of the Sun as the basis ...
Earth in space
... brightness a star would have if it was located 32.6 ly from Earth This eliminates the effect that distance has on the apparent magnitude of a star ...
... brightness a star would have if it was located 32.6 ly from Earth This eliminates the effect that distance has on the apparent magnitude of a star ...
Unit 1
... to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
... to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a supernova ...
Binary Star Systems
... hundreds of years to pass through one orbit. For example, astronomers hypothesize that our Sun may have a “stellar companion” of low mass beyond Pluto. Cool huh! ...
... hundreds of years to pass through one orbit. For example, astronomers hypothesize that our Sun may have a “stellar companion” of low mass beyond Pluto. Cool huh! ...
No Slide Title
... • Some supernovas form neutron stars and black holes. – If the core that remains after a supernova has a mass of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black hole. • black hol ...
... • Some supernovas form neutron stars and black holes. – If the core that remains after a supernova has a mass of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black hole. • black hol ...
Sample multiple choice questions for Exam 2
... 37. The final stellar remnant of a one solar mass star is a a) white dwarf. b) neutron star. c) pulsar. d) black hole. e) main sequence star. 38. Neutron stars are thought to form from a) 1 Msun stars. b) 5 Msun stars. c) 10 Msun stars. d) 50 Msun stars. e) all stars; mass has nothing to do with it. ...
... 37. The final stellar remnant of a one solar mass star is a a) white dwarf. b) neutron star. c) pulsar. d) black hole. e) main sequence star. 38. Neutron stars are thought to form from a) 1 Msun stars. b) 5 Msun stars. c) 10 Msun stars. d) 50 Msun stars. e) all stars; mass has nothing to do with it. ...
File - Mr. Goodyear Astronomy
... C ) Star grows: increase energy overcomes gravity, star moves off the main sequence to red giant area of graph. **All stars go through Red Giant or Red Super Giant stage ...
... C ) Star grows: increase energy overcomes gravity, star moves off the main sequence to red giant area of graph. **All stars go through Red Giant or Red Super Giant stage ...
Document
... The so-called \dark age" of the universe lasted for about a billion years. After this time, the rapid expansion had led to a lamentary distribution of matter with local accumulations in which galaxy clusters, galaxies, and the rst stars, the so-called population III stars, formed. These stars brou ...
... The so-called \dark age" of the universe lasted for about a billion years. After this time, the rapid expansion had led to a lamentary distribution of matter with local accumulations in which galaxy clusters, galaxies, and the rst stars, the so-called population III stars, formed. These stars brou ...
Astronomy Webquest Part 1: Life of Stars: Go to http://www.odec.ca
... Go to http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html and answer these questions: 1. True or False: Light year is a measurement time. It is a year of light. Evidence to support your answer:________________________________________________________________________________ 2. Lig ...
... Go to http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html and answer these questions: 1. True or False: Light year is a measurement time. It is a year of light. Evidence to support your answer:________________________________________________________________________________ 2. Lig ...
bYTEBoss lesson 3 life of star
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
File
... bang theory, all of the energy and matter of the universe was once packed into a single point of space called the singularity. When this singularity exploded, the outward expansion of the universe began, a process that continues today. The first matter to condense out of this cooling, expanding univ ...
... bang theory, all of the energy and matter of the universe was once packed into a single point of space called the singularity. When this singularity exploded, the outward expansion of the universe began, a process that continues today. The first matter to condense out of this cooling, expanding univ ...
Star Birth
... • Giant Molecular Clouds: In certain cold regions of interstellar space atoms combine to form molecules. – Molecular H is hard to detect, since they do not emit light (radiation) – However, carbon monoxide present in these clouds emit millimeter wavelength light, and thus can be detected by radio te ...
... • Giant Molecular Clouds: In certain cold regions of interstellar space atoms combine to form molecules. – Molecular H is hard to detect, since they do not emit light (radiation) – However, carbon monoxide present in these clouds emit millimeter wavelength light, and thus can be detected by radio te ...
Luminosity
... Take a picture from one side of the Earth’s orbit Take a picture from the other side of the Earth’s orbit Blink the pictures Star’s image ~ 1” (arc second) Blurring of atmosphere restricts ground based to ±o.oo2” One arc second is a typewriter period at 100 meters ...
... Take a picture from one side of the Earth’s orbit Take a picture from the other side of the Earth’s orbit Blink the pictures Star’s image ~ 1” (arc second) Blurring of atmosphere restricts ground based to ±o.oo2” One arc second is a typewriter period at 100 meters ...
Milky Way inner halo reveals its age | COSMOS magazine
... without the need for distances,” he noted. “The width depends on the gravity and the pressure, which are both dependent on the mass.” Kalirai compared the masses of newly formed white dwarf stars located in the inner halo of the Milky Way with those of white dwarfs in the well-known 12.5 billion yea ...
... without the need for distances,” he noted. “The width depends on the gravity and the pressure, which are both dependent on the mass.” Kalirai compared the masses of newly formed white dwarf stars located in the inner halo of the Milky Way with those of white dwarfs in the well-known 12.5 billion yea ...
Star and Galaxies Chapter 13
... • Classified as normal spiral galaxy (recent studies show think it might be barred) • Milky Way is spread across the sky in a misty band • Black hole found in center (2.5 million times more massive as the sun) ...
... • Classified as normal spiral galaxy (recent studies show think it might be barred) • Milky Way is spread across the sky in a misty band • Black hole found in center (2.5 million times more massive as the sun) ...
Star and Galaxies Chapter 13 2013
... • Classified as normal spiral galaxy (recent studies show think it might be barred) • Milky Way is spread across the sky in a misty band • Black hole found in center (2.5 million times more massive as the sun) ...
... • Classified as normal spiral galaxy (recent studies show think it might be barred) • Milky Way is spread across the sky in a misty band • Black hole found in center (2.5 million times more massive as the sun) ...
GIZMO H-RDiagramSE
... H-R Diagram GIZMO Gizmo Warm-up In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram ...
... H-R Diagram GIZMO Gizmo Warm-up In the early 1900s, astronomers were able to identify many star characteristics such as color, size, temperature, and luminosity—or how bright a star is. However, astronomers did not yet understand exactly how these characteristics were related. Using the H-R Diagram ...
Topic 3 Earth in the Universe
... specific wavelengths within the electromagnetic spectrum based on their chemical composition. Each gas emits certain wavelengths that are unique to that element. The combination of a star’s elements which produce a pattern of spectral lines can be used to identify the star rather like a fingerprin ...
... specific wavelengths within the electromagnetic spectrum based on their chemical composition. Each gas emits certain wavelengths that are unique to that element. The combination of a star’s elements which produce a pattern of spectral lines can be used to identify the star rather like a fingerprin ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.