ASTR Final Chapter11 Word Scramble
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Question | Answer |
What diagram shows the absolute magnitude (or luminosity) versus the temperature of stars? | Hertzsprung-Russell Diagram (H-R) |
What technique finds distance by comparing the positions of stars as earth orbits the sun? | Parallax Method |
What technique finds distance by measuring brightness? | Standard-Candles Method |
What is luminosity? | The amount of energy radiated by the body in one second |
What do astronomers use to find the luminosity of stars? | Stefan-Boltzmann Law |
What is Apparent magnitude? | How bright a stars appears to us in the sky |
What is absolute magnitude? | How bright the star would be at a distance of 10 parsecs from us |
Lower the number on Hipparchus' scale means what? | Star is brighter |
Higher the number on Hipparchus' scale means what? | Star is dimmer |
What is the magnitude of the sun? | -26.5 |
A star color reveals its surface temperature is a statement from what? | Wien's Law |
The strip on the H-R diagram that contains most stars | Main Sequence stars |
What are binary stars? | A system in which two stars are in gravitationally bound orbits about their common center of mass |
Final stage of lower mass star? | White dwarf |
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