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Fig. 2

image

Reflectance spectrum of asteroid (32) Pomona obtained during our 2008 observing run. The resulting reflectance spectra are significantly different, depending upon the adopted solar analogue star. One of the two spectra (corresponding to solar analogue 2, blue+red curves) is in very reasonable agreement with the SMASS spectrum of this asteroid, whereas the use of solar analogue 1 produces a quite different reflectance spectrum at all wavelengths. SA1 and SA2 correspond to solar analogue stars Hyades 64 and 61 Cyg B, respectively.

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