astsakaiastsakai
34

Js_astro

screenshot of Js_astro

Sample code for astrological calculation written by JavaScript

Github

Overview

The js_astroSample library is a powerful JavaScript tool designed for those interested in astrological calculations. It provides users with the ability to compute the positions of major and minor planets, as well as calculate house cusp longitudes for a wide range of years (0-4000 A.D.) with impressive accuracy, down to one arcminute. While the core functionality is grounded in modern astrological definitions, it also addresses various geocentric calculations, making it a unique asset for developers and astrology enthusiasts alike.

The library is particularly noteworthy for its focus on Japanese standards, including the timezone for calculations and the use of specific house systems. Despite the Japanese comments in the code, the overall structure and functionality make it accessible for users familiar with JavaScript. The implementation of this library can easily be adapted for personal astrology projects or for more advanced applications requiring astrological data.

Features

  • Major Planetary Positions: Calculates geocentric apparent ecliptic longitudes for key celestial bodies including the Sun, Moon, and the classical planets like Jupiter and Saturn.

  • Minor Planet Handling: Supports calculations for minor planets such as Ceres and Chiron, acknowledging their astrological significance despite their classification in modern astronomy.

  • House Cusp Calculation: Offers functionality to compute the house cusp longitudes using the Placidus house system, facilitating sophisticated astrological insights.

  • Timeframe Flexibility: Capable of performing calculations from December 30, 1924, to December 31, 2124, covering a substantial span of astrological events.

  • Accuracy: Achieves a high degree of precision with calculations provided down to one arcminute, ensuring reliable results for astrological analyses.

  • Timezone Consideration: Utilizes Japan Standard Time (UTC+0900) for its calculations, catering specifically to those conducting astrological studies within this timezone.

  • Open Source License: Released under the MIT license, allowing users to freely use, modify, and distribute the library as needed.

  • Compatibility: The library requires a modern web browser and can integrate easily into existing JavaScript applications, making it broadly usable for developers.