USE THE SITE TO ACCESS ASTEROID 2 http://sites.pc.gsu.edu/astr1010lab/asteroids-

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USE THE SITE TO ACCESS ASTEROID 2 http://sites.pc.gsu.edu/astr1010lab/asteroids-lab/

Note other asymmetries in the asteroid's light curves, such as the unequal brightness of the successive maxima or minima. These asymmetries are most likely due to irregular reflectivity of the surface. We can estimate the difference in the reflectivity or albedo from one side to the next by measuring the relative brightnesses in successive minima or maxima. The ratio of the brightnesses is the same as the ratio of the albedoes since the cross-sectional areas seen at successive maxima are the same.

Minimum 1 ________ Minimum 2 _________

Ratio of albedoes (same as ratio of brightnesses) _______

Maximum 1 _________ Minimum 2 _________

Ratio of albedoes (same as ratio of brightnesses) _________

Explanation / Answer

Minimum 1= (0.5-0.4)=0.1, Minimum 2= (0.4-0.35)=0.5. So ratio of albedoes= (0.1/0.5)=0.2

Maximum 1= (1.0-0.9)=0.1, Minimum 2=(0.4-0.35)=0.5. So ratio of albedoes = (0.1/0.5)=0.2

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