Astronomy: Life Cycle of a Star
... _________________________________. Fusion happens when two lightweight atoms are forced together to form a heavier one, producing a lot of ________________. However, fusion can only occur at the incredibly high __________________ and ______________________________ found at the center of stars. Are S ...
... _________________________________. Fusion happens when two lightweight atoms are forced together to form a heavier one, producing a lot of ________________. However, fusion can only occur at the incredibly high __________________ and ______________________________ found at the center of stars. Are S ...
Origin and Formation of the Universe – PowerPoint notes
... Terrestrial planets go through the same 4 stages of development 1. DIFFERENTIATION – heavier materials move to the ________________ of the planet, lighter materials move to the _________________ portion while it is still molten ___________________. 2. BOMBARDMENT – planets receive surface features d ...
... Terrestrial planets go through the same 4 stages of development 1. DIFFERENTIATION – heavier materials move to the ________________ of the planet, lighter materials move to the _________________ portion while it is still molten ___________________. 2. BOMBARDMENT – planets receive surface features d ...
SNC1 Practice Astronomy Exam 1) If something were to happen to
... 1) If something were to happen to the sun, it would take __________ for us to know about it. a) 8 seconds b) 8 minutes c) 8 hours d) 8 days 2) The amount of light energy that a star produces is called its... a) brightness. b) temperature. c) luminosity. d) colour. 3) As best we can determine, galaxi ...
... 1) If something were to happen to the sun, it would take __________ for us to know about it. a) 8 seconds b) 8 minutes c) 8 hours d) 8 days 2) The amount of light energy that a star produces is called its... a) brightness. b) temperature. c) luminosity. d) colour. 3) As best we can determine, galaxi ...
Monday, Oct. 20
... Describe the changes that occur near the center of a star as it changes from a main-sequence star into a red giant. Describe how a red giant becomes a planetary nebula and a white dwarf. How does the pressure inside a white dwarf differ from normal gas pressure? How does nuclear fusion inside of ver ...
... Describe the changes that occur near the center of a star as it changes from a main-sequence star into a red giant. Describe how a red giant becomes a planetary nebula and a white dwarf. How does the pressure inside a white dwarf differ from normal gas pressure? How does nuclear fusion inside of ver ...
Stars & Galaxies
... © 2006, TESCCC The content of this multimedia presentation is intended for use by TESCCC subscribers for intra-district professional development ONLY; and may not be used for other purposes, in whole or part, without the expressed written permission of their ESC-TESCCC coordinator for the region han ...
... © 2006, TESCCC The content of this multimedia presentation is intended for use by TESCCC subscribers for intra-district professional development ONLY; and may not be used for other purposes, in whole or part, without the expressed written permission of their ESC-TESCCC coordinator for the region han ...
ISP 205 Review Questions, Week 10
... Why don’t all of the pieces just pull themselves together into an infinitesimally small clump at the center? ...
... Why don’t all of the pieces just pull themselves together into an infinitesimally small clump at the center? ...
File
... A. Core-collapse of massive star B. Rebounding shock wave blows outer layers of star into space C. As bright as an entire galaxy! D. Signature: 1. Abundance of H2 2. Plateau in light curve ...
... A. Core-collapse of massive star B. Rebounding shock wave blows outer layers of star into space C. As bright as an entire galaxy! D. Signature: 1. Abundance of H2 2. Plateau in light curve ...
The Earth and Beyond
... If the light source is moving ___ from us we would find that the absorption lines are all _______ towards the ___ end of the spectrum (the longer wavelength end). The ________ the light source is moving the further its pattern is shifted. Light from the edge of the ______ also shows this pattern, so ...
... If the light source is moving ___ from us we would find that the absorption lines are all _______ towards the ___ end of the spectrum (the longer wavelength end). The ________ the light source is moving the further its pattern is shifted. Light from the edge of the ______ also shows this pattern, so ...
Matter Cycle in the Interstellar Medium (ISM)
... the ground state predicted in 1945 by van de Hulst, and first detected in 1951 by Ewen and Purcell at Harvard (followed 6 weeks later by the Dutch astronomers Muller and Oort) Cold H I clouds = majority of the total mass of the ISM.! ...
... the ground state predicted in 1945 by van de Hulst, and first detected in 1951 by Ewen and Purcell at Harvard (followed 6 weeks later by the Dutch astronomers Muller and Oort) Cold H I clouds = majority of the total mass of the ISM.! ...
The Gravitational Microlensing Planet Search Technique from
... coverage before and after the observations will prevent a determination of light curve parameters because we can’t be sure that we’ve seen the entire signal. While larger telescopes such as VISTA or the LSST might offer some improvement, the available telescope time would be <<100% of the Galactic b ...
... coverage before and after the observations will prevent a determination of light curve parameters because we can’t be sure that we’ve seen the entire signal. While larger telescopes such as VISTA or the LSST might offer some improvement, the available telescope time would be <<100% of the Galactic b ...
Looking for the siblings of the Sun
... cannot be very dense. -Presence of radioactive-isotopes in primitive meteorites, the Sun was polluted by a SN of star about 15-25 solar masses within a distance of 0.02-1.6 pc (Looney et al. 2006). - Star cluster where the Sun was born: M ~ 500-3000 ...
... cannot be very dense. -Presence of radioactive-isotopes in primitive meteorites, the Sun was polluted by a SN of star about 15-25 solar masses within a distance of 0.02-1.6 pc (Looney et al. 2006). - Star cluster where the Sun was born: M ~ 500-3000 ...
Photometry Review from Some Constellations of Autumn in the
... on any of the listed light ranges that usually cover around 200 nm - 2500 nm using different controls and calibrations. [6] Within these ranges of light, calibrations are needed on the machine using standards that vary in type depending on the wavelength of the photometric determination. [7] An exam ...
... on any of the listed light ranges that usually cover around 200 nm - 2500 nm using different controls and calibrations. [6] Within these ranges of light, calibrations are needed on the machine using standards that vary in type depending on the wavelength of the photometric determination. [7] An exam ...
Study Guide- Tools of Astronomy
... B. Which units are most and least helpful for distances in the Solar system? Explain your reasoning. 11. A. List AND Explain the steps of stellar evolution. B. List the type of fuel associated with each step. C. List the sequence of evolution for high and low mass stars. 12. List, in order, the step ...
... B. Which units are most and least helpful for distances in the Solar system? Explain your reasoning. 11. A. List AND Explain the steps of stellar evolution. B. List the type of fuel associated with each step. C. List the sequence of evolution for high and low mass stars. 12. List, in order, the step ...
Stellar Evolution
... The Outer-layers crash inward superheating the core to billions of degrees. Iron and other elements fuse into heavy metals and The Outer-layer bounces back the Star Explodes… A Supernova! ...
... The Outer-layers crash inward superheating the core to billions of degrees. Iron and other elements fuse into heavy metals and The Outer-layer bounces back the Star Explodes… A Supernova! ...
Cosmic Hierarchy 9.5, 9.6
... Random and then press Load Preset and then run. This provides a thousand random masses, with random motion that obey the laws of physics for gravity and circular motion. a) How well does it match the solar nebula theory? ...
... Random and then press Load Preset and then run. This provides a thousand random masses, with random motion that obey the laws of physics for gravity and circular motion. a) How well does it match the solar nebula theory? ...
Unit 2: The Sun and Other Stars
... beryllium were created in the first few minutes of the Big Bang. Stars have the capability, through their nuclear fusion process, to create lighter elements (from helium up to iron). Remember, stellar nebula start with large amounts of hydrogen. The fusion of lighter elements will continue until iro ...
... beryllium were created in the first few minutes of the Big Bang. Stars have the capability, through their nuclear fusion process, to create lighter elements (from helium up to iron). Remember, stellar nebula start with large amounts of hydrogen. The fusion of lighter elements will continue until iro ...
Star Systems and Galaxies
... Star systems that have two stars are called double stars or binary stars Those with three stars are called triple stars Often one star in a binary star is much brighter and more massive than the ...
... Star systems that have two stars are called double stars or binary stars Those with three stars are called triple stars Often one star in a binary star is much brighter and more massive than the ...
Chapter 20 Review of Stars` Lifetime Review
... • The core can illuminate the cloud of gas and dust • This forms a planetary nebula ...
... • The core can illuminate the cloud of gas and dust • This forms a planetary nebula ...
Origin_of_Elements in the stars
... hydrogen and helium and their isotopes, and for very important reasons. Hydrogen is the simplest possible atom by definition, one proton and one electron. Anything less and it is no longer an atom; it is a subatomic particle with very different properties from the energetically stable atom. With thi ...
... hydrogen and helium and their isotopes, and for very important reasons. Hydrogen is the simplest possible atom by definition, one proton and one electron. Anything less and it is no longer an atom; it is a subatomic particle with very different properties from the energetically stable atom. With thi ...
The Milky Way The Milky Way`s Neighbourhood
... The term “quasar” is short for “quasi-stellar radio source.” The term came into general usage in the 1960s, when astronomers studying cosmic radio sources noticed that many of them looked like stars on photographs. Subsequent studies showed that they were not stars at all, but rather active galactic ...
... The term “quasar” is short for “quasi-stellar radio source.” The term came into general usage in the 1960s, when astronomers studying cosmic radio sources noticed that many of them looked like stars on photographs. Subsequent studies showed that they were not stars at all, but rather active galactic ...
Faux Final
... 4) Describe circumpolar stars and give the range of declinations in which circumpolar stars exist as seen from latitudes 0°, 10°, 30°, 60°, and 90°. 5) List the 7 common wavelength regimes of light in wavelength order. Indicate which transmit through the earth's atmosphere. 6) Sketch an ellipse as a ...
... 4) Describe circumpolar stars and give the range of declinations in which circumpolar stars exist as seen from latitudes 0°, 10°, 30°, 60°, and 90°. 5) List the 7 common wavelength regimes of light in wavelength order. Indicate which transmit through the earth's atmosphere. 6) Sketch an ellipse as a ...
Questionnaire Answers After students have completed the
... other stars have planets too. If we were on a planet in another solar system, the Sun would look like just another star in our sky. The Sun is considered an average sized star. All planets are made of the same material. FALSE. All planets are not made of the same material. Planets are separated into ...
... other stars have planets too. If we were on a planet in another solar system, the Sun would look like just another star in our sky. The Sun is considered an average sized star. All planets are made of the same material. FALSE. All planets are not made of the same material. Planets are separated into ...
paper - Lunar and Planetary Institute
... environments. Materials include metals, minerals, ices, gases, plasmas, and organic chemicals. In addition, the newly defined discipline of astrobiology introduces biological materials to planetary science. The environments range from the interiors of planets with megapascal pressures to planetary m ...
... environments. Materials include metals, minerals, ices, gases, plasmas, and organic chemicals. In addition, the newly defined discipline of astrobiology introduces biological materials to planetary science. The environments range from the interiors of planets with megapascal pressures to planetary m ...
Supernova
... Stellar Explosion • When gravitational force exceeds the electron repulsion, the core collapses immediately. – Energy in photons and neutrinos ...
... Stellar Explosion • When gravitational force exceeds the electron repulsion, the core collapses immediately. – Energy in photons and neutrinos ...
Planetary nebula
A planetary nebula, often abbreviated as PN or plural PNe, is a kind of emission nebula consisting of an expanding glowing shell of ionized gas ejected from old red giant stars late in their lives. The word ""nebula"" is Latin for mist or cloud and the term ""planetary nebula"" is a misnomer that originated in the 1780s with astronomer William Herschel because when viewed through his telescope, these objects appeared to him to resemble the rounded shapes of planets. Herschel's name for these objects was popularly adopted and has not been changed. They are a relatively short-lived phenomenon, lasting a few tens of thousands of years, compared to a typical stellar lifetime of several billion years.A mechanism for formation of most planetary nebulae is thought to be the following: at the end of the star's life, during the red giant phase, the outer layers of the star are expelled by strong stellar winds. Eventually, after most of the red giant's atmosphere is dissipated, the exposed hot, luminous core emits ultraviolet radiation to ionize the ejected outer layers of the star. Absorbed ultraviolet light energises the shell of nebulous gas around the central star, appearing as a bright coloured planetary nebula at several discrete visible wavelengths.Planetary nebulae may play a crucial role in the chemical evolution of the Milky Way, returning material to the interstellar medium from stars where elements, the products of nucleosynthesis (such as carbon, nitrogen, oxygen and neon), have been created. Planetary nebulae are also observed in more distant galaxies, yielding useful information about their chemical abundances.In recent years, Hubble Space Telescope images have revealed many planetary nebulae to have extremely complex and varied morphologies. About one-fifth are roughly spherical, but the majority are not spherically symmetric. The mechanisms which produce such a wide variety of shapes and features are not yet well understood, but binary central stars, stellar winds and magnetic fields may play a role.