Sun calculation js library which is fully based on formula from http://aa.quae.nl/en/reken/zonpositie.html
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Orion Stark
4414b05d36
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7 years ago | |
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| dist | 7 years ago | |
| node_modules | 7 years ago | |
| LICENSE | 7 years ago | |
| README.md | 7 years ago | |
| main.js | 7 years ago | |
| package-lock.json | 7 years ago | |
| package.json | 7 years ago | |
| test.js | 7 years ago | |
README.md
calculation-of-sun
Sun calculation fully based on formula from http://aa.quae.nl/en/reken/zonpositie.html
Warning
:exclamination: This program is not really accurate about the calculation. For the sunrise and sunset, the error value is about 2 minutes miss from the actual time. For the Altitude the error value is near 0.6 degrees and the azimuth as well.
Install with npm
'npm install calculation-ofsun'
How to Use It
'''javascript
const cls = require('calculation-ofsun')
console.log(cls.getSunInformation(new Date(), 33, 3))
/* Get Sun Information expected 3 parameters */
/* Date, lat, long */
''' You can also call any function except getSunPosition, because it automatically calls by the getSunInformation function to get sun position according to your input parameters for getSunInformation.
Functions parameter
| Function Name | Expected Parameter |
|---|---|
| getSunInformation | Date, latitude, longtitude |
| dateToJD | Date |
| jdTODate | JulianDate |
| equation_of_center | JulianDate |
| earthMeanAnomaly | JulianDate |
| earthTrueAnomaly | JulianDate |
| eclipticLongtitude | JulianDate |
| rightAscension | JulianDate |
| declination | JulianDate |
| sideraltime | JulianDate |
| getHourAngle | JulianDate |
| getSunPosition | None, Dont use it |
| solarTransit | JulianDate |
| sunriseandsunset | JulianDate |