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27 Cards in this Set
- Front
- Back
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What is the lifetime of a low mass star?
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100 billion years
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What is the lifetime of a solar mass star?
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10 billion years
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What is the lifetime of a massive star?
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1 billion years
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What is the lifetime of a very massive star?
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1 million years
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What is the temperature of the sun?
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6,000 kelvin
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What is the absolute luminosity of the sun?
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1
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What is the remnant of a solar mass star?
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White Dwarf
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What is the remnant of a massive star?
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Neutron star
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What is the remnant of a very massive star?
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Black hole
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What is the mass of a white dwarf?
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1/10 solar mass
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What is the composition of the white dwarf?
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Carbon Atoms
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What is the size of the white dwarf?
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10,000 km about the size of earth
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What is the mass of a massive star?
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About 10 times the sun's
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What is the mass of a neutron star?
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1 solar mass
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What is the composition of a neutron star?
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Neutrons
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What is the size of a neutron star?
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10 km diameter. About from here to brandon
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What is a mass of a very massive star?
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About 100 times the sun's
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What is the mass of a black hole?
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10 solar masses
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What is the composition of the black hole?
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Who knows
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What is the size of the black hole?
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Approaching zero
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What is the evidence of a solar mass star?
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Planetary nebula (a white dwarf at the center of an expanding shell of gas)
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What is the evidence of a massive star?
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Pulsar (At center of supernova remnant of where a neutron star should be)
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What is the evidence of a very massive star?
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Binary xray systems (one visible star still remains, the other a black hole drawing its materials inward which emits the xrays)
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At what tempertature does hydrogen fusion occur?
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10,000,000 degrees
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What temperature does helium fusion occur?
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100,000,000 degrees
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On the diagram, what is the range of temperatures of the main sequence stars?
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3,000 to 30,000 degrees kelvin (increasing to the left)
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On the diagram, what is the range of absolute luminosity of the main sequence stars?
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1/100 to 1,000,000 times our suns
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