Pluto.js is

Pluto.js is ephemeris calculator for Sun, Moon and Planets.
This file is made from the Swiss Ephemeris Free Edition,
Version 2.00.00 of Astrodienst AG, Switzerland
from the original C Code to JAVA and JAVA to JavaScript.

Example

Planets' position

$pl.setDate(year, month, day, hour, minute, second, timezone);
var planetPositions = $pl.getPositions();

Houses

$pl.setGeoPosition(latitude, longitude);
var houses = $pl.getHouses(house);

Demo

https://rubyfmzk.com/pluto/demo/

License

GNU General Public License v2.0
https://www.gnu.org/licenses/old-licenses/gpl-2.0.html

Contributers

original C Code

ASTRO DIENST
https://www.astro.com/swisseph/

C Code to JAVA

Thomas Mack
http://www.th-mack.de/international/download/