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| is the sun the star nearest to the earth? |
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| what are most constellations named after? |
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| for real or imaginary animals/Greek gods, and heros |
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| the milky way is an example of what type of galaxy? |
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| are stars are distributed unevenly in n irregular galaxy? |
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| are spiral galaxies are smaller and fainter than other types of galaxies? |
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| the color of a star in category O in the table above would most likely be what? |
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| a star in category G in the table above would most likely be what? |
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| a device for separating light into different colors is known as a what? |
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| starlight passing through a device for separating light produces a display of colors and lines called a what? |
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| an apparent shift in the wavelength of light emitted by a light source moving toward or away from an observer is known as what? |
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| a star moving toward the earth would display a ___ shift? |
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| a star that had blue-shifted spectrum is most likely moving which direction? |
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| the apparent change in the position of an object resulting from a change in the angle or in the position from which it is viewed is called what? |
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| how far is the sun from the earth in light minutes? |
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| a star that experiences regular changes in brightness over time is called a what? |
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| in which region of the diagram does the sun lie? |
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| what type of star is generally located in region A of this H-R diagram? |
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| a star with what apparent magnitudes would appear brightest? |
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| the apparent magnitude of a star is a measure of its what? |
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| what apparent magnitudes is dimmest? |
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| positive numbers are dimmest |
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| what stage of stellar evolution is the sun experiencing at this time? |
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| a plot of surface temp. of stars against their absolute magnitude is called what? |
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| what is the earliest stage in the dev. of a star? |
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| nuclear fusion begins when tem within a protostar reach over what? |
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| the process i which smaller atomic nuclei combine into larger atomic nuclei is known as what? |
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| which type of star maintains a stable size because the energy from fusion balances the force of gravity? |
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| what stage in stellar evolution is the largest |
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| a pulsar is a type of what? |
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| the end of which stage of stellar evolution is marked by the end of helium fusion? |
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| what stage in a star evolution follows fusion of heavy elements into iron? |
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| in the last stage of stellar evolution following a supernova, stars too massive to form neutron stars may form a what? |
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| in which stage of stellar evolution does combined hydrogen fusion and helium fusion cause a stars outer shell to expand? |
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| stars that emits two beams of radiation that can be detected as radio waves are called what |
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| when a white dwarf star no longer emits energy, it may become a what? |
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| what stage in the life of a star 10 times move massive that the sun is missing in this chart |
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| astromomers label the stars in a constellation according to their what? |
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| large-scale groups of stars bound together by gravitional attraction are known as what? |
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| a photograph of the motion of stars in the northern sky during an expended period shows a pattern of curved trails explain what causes this apparent motion of the stars |
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Definition
| earth rotated on its axis earth revolves around the sun |
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| how do astronomers try to locate black holes? |
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Definition
| look for absences or gives off x rays |
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Term
| the core of a start ois five times more massive than the sun and is composed mostly of helium and carbon. which stage of stellar evolution is the star most likely in? why? |
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Definition
red giants used up hydrogen
fusing helium to carbon
much larger than the sun |
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