def next(self):
        """
        :return: a set of values that can be used for an planted object builder.
        """
        #        x          y        mag   pix rate      angle  ''/h rate     id
        # 912.48     991.06      22.01      57.32     -45.23      10.60      0
        self._n -= 1
        if self._n < 0:
            raise StopIteration()
        return {'x': self.x(), 'y': self.y(), 'mag': self.mag(), 'sky_rate': self.rate(), 'angle': self.angle(),
                'id': self.id}
:return: a set of values that can be used for an planted object builder.