Photometric observations of this asteroid made during 2010 showed a rotation period of 7.718±0.001 h with a brightness variation of 0.34±0.02 in magnitude.[3]
References
^Noah Webster (1884) A Practical Dictionary of the English Language
^Pilcher, Frederick (October 2010), "Rotation Period Determinations for 80 Sappho, 145 Adeona, 217 Eudora, 274 Philagoria, 567 Eleutheria, and 826 Henrika", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 37 (4): 148–149, Bibcode:2010MPBu...37..148P.
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