solcalc

Discription

solcalc is a JavaScript library for calculating exact sunrise and sunset times for a given location, based on the implementation of the NOAA Solar Calculator.

Disclaimer

Times are mathematically acurate for the given day and final times are not rounded. NOAA Solar Calculator rounds time to the nearest minute and may differ slightly from the results here.

Installation

$ npm install --save solcalc

Usage

const solcalc = require('solcalc');

solcalc.getTimes(/*Moment*/ date, /*Number*/ latitude, /*Number*/ longitude)

Returns an object with the following properties (each is a Moment object):

Property	Description
sunrise	sunrise
sunset	sunrise ends
solarNoon

Usage(Binary)

./solcalc
  Usage: index [options]
  A Javascript module used to calculate sunrise, and sunset based on the NOAA Calculations
  Options:
    -h, --help               output usage information
    -V, --version            output the version number
    -l, --latitude  <n>*     latitude
    -g, --longitude  <n>*    longitude
    -d, --date [YYYY-MM-DD]  date in YYYY-MM-DD format, defaults to current date

License

LGPL-3.0 © yitz