Aster Fibres is part of the spindle apparatus
Step-by-step explanation:
Spindle apparatus is the structure consisting of spindle fibres, the dividing chromosomes and the centrosomes. The astral rays, or the astral fibres are the spindle fibres that arise from the centrosomes. The word astral means star i.e. radiating from one point.
In the spindle fibres, the centrosomes are the organelles from which the spindle fibres arise. That point when zoomed on, looks like a star in light microscope, from where the spindle fibres are arising. So, astral rays are the part from the spindle apparatus.