Day/Night astro object

[alexll]

Hi there,

I'm looking for an object to know if it's day or night based on the sunrise / sunset calculation of the LM to use in some scripts (or just the best way to do that).

Can you help me? Thanks in advance.

[AlexLV]

Hi alexll,

Now it possible to do easier than in mine variant. You need enter your site where device is located your coordinates, (Utilities --> Time and Date). Than sunrise and sunset times will be automatically calculated and available in scheduler. And in scheduler you can use as example sunrise time and add offset (+ or - time to switch on/off something)..

You can try to use part of my script Resident script, sleep 60 seconds):

Code:

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time = os.time() latitude = 52.879110 --Site Coordinates longitude = 23.128610 --Site Coordinates sunrise, sunset = rscalc(latitude, longitude) sunrise_hour = math.floor(sunrise / 60) sunrise_minute = sunrise % 60 sunset_hour = math.floor(sunset / 60) sunset_minute = sunset % 60 sunrise_text = string.format('%02d:%02d', sunrise_hour, sunrise_minute) sunset_text = string.format('%02d:%02d', sunset_hour, sunset_minute) Day_Length = sunset - sunrise Day_Length_hour = math.floor(Day_Length / 60) Day_Length_minute = Day_Length % 60 Day_Length_text = string.format('%02d:%02d', Day_Length_hour, Day_Length_minute) grp.update('33/1/20', Day_Length_text) -- Length of the day in text way. Put in your group --log (Day_Length_hour) --log (Day_Length_minute) date = os.date('*t') now = date.hour * 60 + date.min OutsideLightOn = sunset + 60 -- Time after one hour after sunset. You can change it... OutsideLightOff = sunrise - 60 --Time one hour before sunrise. You can change it.. if now > OutsideLightOn then   OutsideLightTxt = 'Outside Light is On' -- text status of outside lighting   grp.update('33/1/11', 1) -- Switch On group of outside lighting   grp.update('33/1/12', OutsideLightTxt) --Lighting status text way   end if (now > (OutsideLightOff - 2) and now < OutsideLightOff) then   OutsideLightTxt = 'Outside Light switched Off'   --log(now)   --log(OutsideLightOn)   --log(OutsideLightOff) grp.update('33/1/11', 0) -- Switch off outside lighting   grp.update('33/1/12', OutsideLightTxt) --Text wat status of lighting end -- from 0:00 to sunrise if now < sunrise then   daynight = 'Before sunrise (Night)' -- from sunset to 23:59 elseif now > sunset then   daynight = 'After sunset (Time till midnight)' else   daynight = 'Day' end

Also you will have statuss - of the day time - Night, Day, ot time till midnight after sunset..

BR,

Alex

[alexll]

Thanks for the quick reply. I'm going to try that.