broham / suncalcpy

A python implementation of the SunCalc javascript library.

SunCalcPy

A Python library for calculating sun/moon times, positions and phases. Includes methods for getting:

• sunrise
• sunset
• moonrise
• moonset
• golden hour
• sun position
• moon position
• moon illumination
• and more!

Installing

pip install suncalcPy

Usage examples:

Get sunrise, sunset, golden hour and other times for San Francisco:

>>> import suncalc
>>> suncalc.getTimes(datetime.now(), 37.7749, -122.4194)
{
   'sunriseEnd': '2017-09-06 06:48:24', 
   'goldenHourEnd': '2017-09-06 07:20:27', 
   'dusk': '2017-09-06 19:59:44', 
   'nightEnd': '2017-09-06 05:15:09', 
   'night': '2017-09-06 21:03:39', 
   'goldenHour': '2017-09-06 18:58:21', 
   'sunset': '2017-09-06 19:33:08', 
   'nauticalDawn': '2017-09-06 05:47:35', 
   'sunsetStart': '2017-09-06 19:30:24', 
   'dawn': '2017-09-06 06:19:04', 
   'nauticalDusk': '2017-09-06 20:31:13', 
   'sunrise': '2017-09-06 06:45:40'
}

Get moon illumination information:

>>> import suncalc
>>> suncalc.getMoonIllumination(datetime.now())
{
   'phase': 0.5198419002220316, 
   'angle': 1.574687975565145, 
   'fraction': 0.9961193570459752
}

Get moonrise/moonset times for San Francisco:

>>> import suncalc
>>> suncalc.getMoonTimes(datetime.now(), 37.7749, -122.4194)
{
   'rise': datetime.datetime(2017, 9, 6, 20, 4, 29, 213367), 
   'set': datetime.datetime(2017, 9, 6, 6, 56, 30, 536332)
}

suncalcpy's Issues

"ImportError: No module named suncalc" ... although installed via "pip install suncalcPy"

Short:
I get "ImportError: No module named suncalc" ... although installed via "pip install suncalcPy"

Tips how to solve?

Long:

sander@sammie:~$ pip install suncalcPy
Collecting suncalcPy
Installing collected packages: suncalcPy
Successfully installed suncalcPy-0.1

but I get:

sander@sammie:~$ python -c "import suncalc"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named suncalc
sander@sammie:~$ 

It is really installed:

sander@sammie:~$ pip uninstall suncalcPy
Uninstalling suncalcPy-0.1:
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/DESCRIPTION.rst
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/INSTALLER
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/METADATA
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/RECORD
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/WHEEL
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/metadata.json
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy-0.1.dist-info/top_level.txt
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy/suncalc.py
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy/suncalc.pyc
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy/test.py
  /home/sander/.local/lib/python2.7/site-packages/suncalcPy/test.pyc
Proceed (y/n)? y
  Successfully uninstalled suncalcPy-0.1

and the uninstall works too:

sander@sammie:~$ pip uninstall suncalcPy
Cannot uninstall requirement suncalcPy, not installed
sander@sammie:~$ 

Time difference for moon rise/set in Havana

I am using this nice python script but validating results against:

• https://www.timeanddate.com/moon/cuba/havana
• https://www.metcheck.com/OTHER/moontimes.asp?LocationID=315453&Location=Havana

or other internet sites there are differences bigger than 3 or even 5 minutes.

Development status?

Hi, this library is perfect for a project I have in mind, it's lightweight and small.

However, there are a few open issues and pull requests, plus a variety of other minor problems I've seen. What do you think about fixing them up? If not, I am prepared to fork and continue development with the assistance of other coders.

Thanks

wrong results when daylight time

hello

now that we have daylight savings time, sunrise, sunset, moonrise, moonset are all -1 hour.
How to fix this ?
thanks in advance
frank

AttributeError: module 'suncalc' has no attribute 'getMoonTimes'

import suncalc
import datetime
print(suncalc.getMoonTimes(datetime.now(), 37.7749, -122.4194))

when run this program return this error how to solve this "AttributeError: module 'suncalc' has no attribute 'getMoonTimes'" ?

Azimuth Error

As I attempt get azimuth, the result is more different than SunCalc.org. Suncalc.org says 298.54° but suncalcPy says 2.0824 radians or 119.31° for intersection of Greenwich and Equator(0,0)

Moonset if Hour is 0 then it should be the next day

First of all thank you for this cool and short routine to determine sun and moon data. I noticed, that the moon-set date remains on the same day if it is after midnight. I think the date should be one day later (add 1 day to date). I added following to the getMoonTimes method almost at the end (where if (sett): is):
def getMoonTimes(date, lat, lng):

   if (sett):

       if int(sett) == 0:

           sett +=24

   result["set"] = hoursLater(t, sett)