Ephemeris data for: \"Planet activeness: a new concept to enhance the accuracy of Astromet weather forecast\"

Background: Astrometeorology is an ancient science, that addresses the relationship between planet position and weather events. Several Indian studies proved that astrometeorology could be a complementary method to improve numerical weather forecast accuracy. Since 2011, Tamil Nadu Agricultural University is involved in astrometeorological research and devised a novel concept \"Planet Activeness Chart\". The principle is that “planets’ influence on a location’s weather varies throughout the day and may be negative, inactive, active, highly active and rule depending on their angle to that location”. Most existing astrometeorological studies used planetary position to predict the occurrence of weather events (yes/no) but failed to capture the intensity of such events. The “Planet Activeness Concept” could address this limitation and enhance forecast usability.
Methods: A study was carried out from 2018 to 2021 with six years of data (2011-16) to verify the “planet activeness” on hourly rain..., Dataset developed by running ephemeris calculator., , # Ephemeris data for: \"Planet activeness: a new concept to enhance the accuracy of Astromet weather forecast\"

[https://doi.org/10.5061/dryad.gxd2547v5](https://doi.org/10.5061/dryad.gxd2547v5)

## Description of the data and file structure

Azimuth is the angle formed between a reference direction (north) and a line from the observer to a point of interest projected on the same plane as the reference direction, orthogonal to the zenith. The ephemeris is continuous time series values of planets’ azimuth and hourly scale was used in this study.

The Azimuth and ephemeris of nine planets viz., Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune during the weather event happening hours at each selected location of 31 districts in Tamil Nadu were calculated for the period of six years from 1.1.2011 to 31.12.2016 and stored here as “xls” format.

Alcyone Ephemeris 4.3v calculator, which is simple and fast astronomical position calculation software was used in this study. Ea...