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Table 7

Geometric albedos of dynamical families derived from Spitzer surveys.

Dynamical Heliocentric DeMeo Tholen Number of Mean geometric
family distance taxonomic taxonomic members albedo
(AU) type type

Flora 2.20 Sw S 51 0.20 ± 0.10
Vesta 2.36 V V 42 0.26 ± 0.12
Nysa/Polana 2.42 S/B 79 0.13 ± 0.11
Eunomia 2.64 K S 26 0.17 ± 0.09
Koronis 2.87 S S 33 0.17 ± 0.06
Eos 3.01 K S 80 0.14 ± 0.05
Themis 3.13 C C 73 0.06 ± 0.03
Hygiea 3.14 C C 42 0.07 ± 0.05

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