Study of the effects of heavenly bodies on human behaviour (9)

I believe the answer is:

astrology

(Other definitions for astrology that I've seen before include "Belief in the influence of stars" , "Star divining" , "It claims divination by the positions of the planets" , "Star divination" , "Study of the supposed influence of stars and planets on our affairs" .)

I've seen this clue in the Sydney Morning Herald.

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