Applications to Astronomy: The apparent brightness of a star is 1.0 × 10-12 W/m2 and the peak wavelength in its light is 600 nm. Assuming it is the same size as our sun and that it radiates like an ideal blackbody, estimate its distance from us, in parsecs. The constant in Wien's law is 0.00290 m ? K, and 1 parsec is equal to 3.09 × 1016 m. (Rsun = 6.96 × 108 m, ? = 5.67 × 10-8 
)
A. 1.2 pc
B. 12 pc
C. 120 pc
D. 1200 pc
Answer: C
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