Physics - 13.4 - H-R Diagrams and Stellar Spectra.pdf - H-R...

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H-R Diagrams andStellar SpectraMINNETONKA HIGH SCHOOL|PHYSICS
Organizing the Stars
H-R Diagrams
H-R Diagrams
H-R Diagrams
Sizes of Stars
IB Physics Data Booklet
H-R Diagram for Calculating DistanceThe maximum wavelength of a distant star is measured to be 600 nm,suggesting that it has a temperature of ~4800 K. If this star has a brightness of1.0 × 10-12W m-2, what is its distance from Earth?Lsun= 3.84 × 1024W
Try ThisThe maximum wavelength of a distant star is measured to be 400 nm. If this starhas a brightness of 0.5 × 10
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12 W, 400 nm, 600 nm, Lsun

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