Asteroid 13643 Takushi

13643 Takushi is a main belt asteroid with an estimated diameter of 5 km. It was discovered on April 21, 1996 by H. Abe at Yatsuka. The semi-major axis is 2.45 AU, the eccentricity is 0.112 and the inclination is 13.83 degrees.

Observations of this asteroid were made on five nights during December/January 2011/2012. Analysis of the data showed the asteroid to be a relatively slow rotator with a period of around 83.838 hours. The amplitude was around 1.00 mag, however these results are tentative as no definite maximum or minimum was observed.

Lightcurve results for 13643 Takushi.
Period 83.838 +/- 0.034 hours. Amplitude 1.05 magnitude +/- 0.1 magnitude.