Daystar 1.0.1

Solar calculation class for Python

Daystar

Daystar is a python library that provides a convenient class for Solar calculations based off of my other library Solarflare. Check out Solarflare at https://pypi.org/project/Solarflare/

In order to use this library, just create an instance of the daystar class:

from Daystar import *
sun = Daystar(latitude, longitude)

The functions provided are (they all default to datetime.datetime.now()):

• risetime(date): returns the sunrise
• settime(date): returns the sunset
• solarnoon(date): returns the solar noon time
• hrangle(date): returns the hour angle for the time and date
• coordinates(date): returns a dictionary with declination and right ascension ("dec" and "ra")
• mean(date): returns the mean anomaly
• true(date): returns the true anomaly
• ceq(date): returns the equation of center
• solar_julian(date): returns "rise" and "set" dictionary with sunrise and sunset julian dates
• alt(date): returns solar altitude
• azi(date): returns the solar azimuth
• nadir(date): returns the time of nadir