A Photometric Study of 470 Kilia

Based on more than five months of observations, we find for 470 Kilia a synodic rotation period of 296.2 ± 2 hours, maximum amplitude 0.30 ± 0.05 magnitudes, color index V-R=0.51. We calculate H=10.25 ± 0.05 and G=0.23 ± 0.05 at mid-light in the V photometric system. Tumbling is confirmed, but the second tumbling period could not be found due to commensurability with the principal period.