Question
how is parallax used to measure the distance to stars?
how is parallax used to measure the distance to stars?
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If a star has a parallax of .005 arcsec, what is its distance? How does your...
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Star D's Parallax is 0.0351" and its Flux is 7.1E-8 W/m2 Given this information Calculate the...
Star D's Parallax is 0.0351" and its Flux is 7.1E-8 W/m2 Given
this information Calculate the distance and luminosity of star D in
the following units:
Distance in light years:
Distance in meters:
Luminosity in watts:
Luminosity in Ls:
Star A's Parallax: 0.0045" Flux: 2.6E-9 W/m2
Given this information calculate the Luminosity of Star A in
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Given the information Calculate the Luminosity of star C in
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Indicate whether the following statements are true or
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spectroscopic parallax (main-sequence fitting).
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Star A: Distance: 30 light years Luminosity: 0.798 LS Color: 515.5 nm Star D: Distance: 748...
Star A:
Distance: 30 light years
Luminosity: 0.798 LS
Color: 515.5 nm
Star D:
Distance: 748 light years
Luminosity: 0.466 LS
Color: 555.6 nm
Star C:
Distance: 406 light years
Luminosity: 0.371 LS
Color: 573.5 nm
Star R:
Parallax: 0.0441"
Flux: 5.18E-11 W/m2
Color: 512.4 nm
Calculate these properties of Star R:
Distance in light years:
Luminosity in Ls:
Temperature in Kelvin:
Which of these stars is the coldest?
Which star is the hottest?
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