Astrometeorology: Relationship between Two Planet’s Aspect and Cyclone Events over Bay of Bengal (BOB)

Aim: Identifying the astrometeorological relationship between two planet’s aspect and cyclone events over Bay of Bengal (BOB).

Study Design: Correlating the two planet aspects calculated from the ephemeris and different stages of Cyclone event.

Place and Duration of Study: The study was conducted as a part of post graduate thesis research at Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India.

Methodology: Collection of Cyclone track and their stage for each cyclone event observed from 1990 to 2016 over Bay of Bengal (BOB). Calculating planetary position for the cyclone track (eye point) and developing two planet’s aspects from the ephemeris. Correlating the two planet aspects and Cyclone event to identify frequency.

Results: Among the 36 two planets aspects studied, Uranus – Neptune and Sun – Mercury and Sun – Venus had higher influence on all the cyclone categories, whereas the Saturn – Uranus, Saturn - Neptune and Venus – Mars had high influence on high intensity cyclones from Very Severe Cyclone to Super Cyclone system. The highest number of category ‘D’ cyclones were observed with the conjunction of Uranus – Neptune (69.8%), category ‘DD’ in the Uranus – Neptune (67.6%), category ‘CS’ in the Uranus - Neptune (64.8%), category ‘SCS’ in the Uranus - Neptune (66.8%), category ‘VSCS’ in the Uranus – Neptune (68.3%), category ‘VSCS’ in the Uranus – Neptune (64.7%) and the category ‘SUCS’ in the Saturn conjunction with Uranus and Neptune (76.9%).

Conclusion: The study inferenced that, irrespective of 36 two-planet combinations, the 0-30 degrees two-planet aspects had more influence on cyclone intensity than other aspects of any two planets, in particular 0 – 10 degree aspects. Squares and oppositions angles between Mars, Saturn, Uranus and Neptune are considered to be storm breeders and these angle between Mars and Saturn or Mars and Uranus can influence the formation of very energetic storm systems.