G.Hahn1 , S.Mottola1 , A.K.Sen2 ,
A.W.Harris1 , E. Kuhrt1 and
M.Mueller1
Abstract.
We have performed photometric observations in the V-band of two
asteroids belonging to the Karin asteroid family, (11728) Einer and
(93690) 2000
VE21 , using the 2-m Himalayan Chandra Telescope, Hanle and 2k ×4k
pixels
CCD imager. We obtained measurements during two nights (November 25 and
26, 2005) which enabled information on the rotational periods and the
lightcurve
amplitudes of the asteroids to be derived. In addition, we derived the
absolute
magnitudes H, improving previously published values. These observations
were
performed to complement the IR observations obtained for a set of Karin
family
asteroids with the Spitzer space telescope.
Keywords: asteroids- photometry - solar system
1
Institute of Planetary Research, German Aerospace Center, (DLR)
Rutherfordstra2, D-12489 Berlin, Germany
2
Dept. of Physics, Assam Univ., Silchar 788011, India