Stellar Evolution and the HR Diagram Study Guide
... Most stars are composed mainly of hydrogen and helium. ...
... Most stars are composed mainly of hydrogen and helium. ...
When Stars Go Boom - Chandra X
... B. Lives about the same amount of time as the Sun. C. Lives 10-20 times longer than the Sun. D. Will only live 10-20 more years. 6. What common force that holds you to the Earth gives a star its energy? Level THREE Questions (#7-10) 7. Scientists use many different tools to help them study stars. Ma ...
... B. Lives about the same amount of time as the Sun. C. Lives 10-20 times longer than the Sun. D. Will only live 10-20 more years. 6. What common force that holds you to the Earth gives a star its energy? Level THREE Questions (#7-10) 7. Scientists use many different tools to help them study stars. Ma ...
ASTR 101 Deming EXAM II November 18 OFFICE HRS in CSS
... gamma rays, x rays, ultraviolet, visible, infrared, radio short wavelength--------------------------->long wavelength great photon energy------------------>less photon energy Spectra–handout on continuous, emission, absorption spectra How are positions of lines linked to composition? How can spectra ...
... gamma rays, x rays, ultraviolet, visible, infrared, radio short wavelength--------------------------->long wavelength great photon energy------------------>less photon energy Spectra–handout on continuous, emission, absorption spectra How are positions of lines linked to composition? How can spectra ...
SETI
... • How probable is the development of technology? – Radio communications for just 100 years – Less than 1/10,000 the time since humans appeared ...
... • How probable is the development of technology? – Radio communications for just 100 years – Less than 1/10,000 the time since humans appeared ...
Stellar Evolution
... decrease; no more elements to fuse • Star begins to collapse • Dying star surrounded by gases ...
... decrease; no more elements to fuse • Star begins to collapse • Dying star surrounded by gases ...
Starlight and What it Tells Us
... Why Black-Body Radiation is so Important • Color is directly related to temperature • Temperature is the only determinant of color • Energy per unit area is the same if temperature is the same – If two stars have the same color and distance, difference in brightness is due to difference in size – ...
... Why Black-Body Radiation is so Important • Color is directly related to temperature • Temperature is the only determinant of color • Energy per unit area is the same if temperature is the same – If two stars have the same color and distance, difference in brightness is due to difference in size – ...
Distances to Stars: Parsecs and Light Years
... Or…the Sun is the closest star Think about them: Demo of “Starry Night” ...
... Or…the Sun is the closest star Think about them: Demo of “Starry Night” ...
Star Study Guide Chapter 21 Test
... shows the relationship between absolute brightness and surface temperature of a star ...
... shows the relationship between absolute brightness and surface temperature of a star ...
Lecture 10 February 13
... appear close together but aren’t really binary Visual Binary orbiting, but we can see them both Astrometric Binary proper motion wiggles to show orbit Spectrum Binary spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of ...
... appear close together but aren’t really binary Visual Binary orbiting, but we can see them both Astrometric Binary proper motion wiggles to show orbit Spectrum Binary spectra of two stars of different type Spectroscopic Binary Doppler shift shows orbital motion Eclipsing Binary light varies Half of ...
Life Cycle of Stars
... • When hot enough = nuclear fusion begins • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
... • When hot enough = nuclear fusion begins • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
Lecture 16 - Yet More Evolution of Stars
... nuclei are converted into neutrons with the emission of neutrinos • Core collapse stops, neutron star is formed • Rest of the star collapses in on the core, but bounces off the new neutron star (also pushed outwards by the neutrinos) ...
... nuclei are converted into neutrons with the emission of neutrinos • Core collapse stops, neutron star is formed • Rest of the star collapses in on the core, but bounces off the new neutron star (also pushed outwards by the neutrinos) ...
Chapter 13
... The End of a Star’s Life When all the nuclear fuel in a star is used up, gravity will win over pressure and the star will die. ...
... The End of a Star’s Life When all the nuclear fuel in a star is used up, gravity will win over pressure and the star will die. ...
Early Observers (The Beginnings of Astronomy)
... Planets traveled in smaller circular paths as they traveled around the Earth (epicycles and deferents) Popular model of universe for 1,500 years. ...
... Planets traveled in smaller circular paths as they traveled around the Earth (epicycles and deferents) Popular model of universe for 1,500 years. ...
File
... The largest star discovered so far might be VY Canis Majoris. Astronomers are still debating its full size, but some observations suggest it could have a diameter 3000 times larger than that of the Sun. ...
... The largest star discovered so far might be VY Canis Majoris. Astronomers are still debating its full size, but some observations suggest it could have a diameter 3000 times larger than that of the Sun. ...
Script - ESA/Hubble
... First, the star swells up and cools down a little, becoming a so-called red giant. When the Sun does this, it will destroy the inner planets of the Solar System. [Narrator] ...
... First, the star swells up and cools down a little, becoming a so-called red giant. When the Sun does this, it will destroy the inner planets of the Solar System. [Narrator] ...
Is there anybody out there?
... ne = planets in a stars habitable zone --> 1 ng = stars in a galactic habitable zone fi = fraction of habitable planets where life does arise ...
... ne = planets in a stars habitable zone --> 1 ng = stars in a galactic habitable zone fi = fraction of habitable planets where life does arise ...
Where a limit?
... Life in the Universe can have the forms not similar to the terrestrial. Life occurrence in the interstellar environment where various organic molecules (оксида carbon, methyl spirit, formaldehyde are revealed many) is possible. In a space matter can be formed and more difficult molecules. Probably t ...
... Life in the Universe can have the forms not similar to the terrestrial. Life occurrence in the interstellar environment where various organic molecules (оксида carbon, methyl spirit, formaldehyde are revealed many) is possible. In a space matter can be formed and more difficult molecules. Probably t ...
ILÍDIO LOPES ()
... The study of magnetic activity in solartype stars is of fundamental importance for stellar structure and evolution. It is ...
... The study of magnetic activity in solartype stars is of fundamental importance for stellar structure and evolution. It is ...