The dependence of asteroid lightcurves on the orientation parameters and the shapes of asteroids

The dependence of asteroidal light curves has been derived from the obliquity, aspect and phase angles. The effects of an angle variation are discussed taking into account the possible geometry of an asteroidal body.The amplitude-aspect relation is discussed for different asteroidal shapes.On the basis of this relation a graphical attempt to determine the value of the aspect from the light curves' amplitude is described.