SunCalc

A little online application with interactive map that shows sun movement and sunlight phases (with dawn, sunrise, sunset and dusk times) during the given day at the given location.
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see sun's position at night relative to location.

I would like to see a line to determine the sun's location at night on the pie graph. This would allow someone to see the moment the sun would rise or see how long it would be for the sun to rise. The line is already there showing the sun's...
D. Hodges, 30.05.2018, 08:54
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rotating the map doesn't rotate the sun trajectory

You can rotate the map by clicking on the small icon in the lower right corner (you need to click the "grid-like" 3d button to see this icon). But the 'sun trajectory' illustration stays in the 'north up' orientation.
peter, 04.06.2018, 11:30
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display sun angle at end of selectable time line

I would suggest displaying the sun angle in the sky referenced by the time line movable select button and the arc of the sun on the selected day.
kalljo, 07.06.2018, 02:40
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Any other date be accepted in the box "NOW".

If you want to make some simulations for other dates in the year, such a new facility would be very useful.
dvisoiu, 07.06.2018, 06:02
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Read off the sun rise/set asimuth angles

Eric, 07.06.2018, 15:56
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Date

Have the date always set to todays date upon opening please.
Aril Wretblad, 11.06.2018, 08:31
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kenandruthb@btinternet.com

Vitamin D is made in the body through ultraviolet light. I believe it is uvb light that is needed. I understand that this is only available when the sun is higher than 45 degrees. Please could you have this information available? Or I can just see...
Ruth Brew, 12.06.2018, 09:41
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Why on shows that at noon is night? Wrong hr

I'm looking for diferent places around the world and shows completely wrong data. For example in chile says at 14hrs is night It says that in france at 9am is dark too... Doesn't use the clock of the country... that's really absurd and also I...
Pedro, 12.06.2018, 13:21
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Google maps satellite layer

Awesome app! Can you allow us to choose the satellite imagery layer from google maps?
John Wilson, 15.06.2018, 13:37
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Report a bug: 8/9/18 USA 33.6 lat to 9/28/18

Looking at Austin, TX during 8/9/18-9/28/18 the sunset angle disappears. Moving north to Lat 33.78, the angle highlight reappears. Anomaly appears to be consistent across the southern US and Mexico.
Ed Penak, 17.06.2018, 19:15
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See the equator.

Show the equator on the map.
Brian Provus, 19.06.2018, 22:24
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show direction every hour (for printing all day)

show direction of the sun every hour, to print a single map for the whole day to use offline
claudio, 22.06.2018, 10:07
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show multiply sun angles at once with labels

show more than one time angle so you can print, great for house design and max time of sun height for solar
steve, 23.06.2018, 08:32
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see compass reading of sunrise sunset..thanks

above
ohiotexashybrid, 25.06.2018, 18:39
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Calculate the sunlight intensity or lux values

You can show the sunlight intensity by location and time of day in Watts/m2 or Lux.
pv, 27.06.2018, 05:36
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The link to "Weather Forecast" in the lower right-hand corner is blocking the "minus" button to zoom the map out.

Add capability to "hide" or move the "Weather Forecast" link so that you can zoom the map out. Right now all I can do is zoom in, but can't zoom back out again. Thanks!
Bill, 28.06.2018, 14:21
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Weather bug in lower right of the screen is a problem

The "Weather Forecast" bug in the lower right side of the screen obscures the "zoom out" function of the map.. So you can zoom in all you want, but you have to find the little sliver of zoom out or just restart.. It's a royal pain, can you fix it...
Andy, 01.07.2018, 13:09
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Have an API to access from any platform

it would be very helpfull if you can provide an api through http request to get info about sun position.
Maksim Novikov, 01.07.2018, 21:12
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nice site but keeps freezing

keeps freezing after two minutes
phil, 05.07.2018, 20:23
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increment/decrement days with buttons

a plus button to increment day a minus button to decrement day
Richard Graff, 06.07.2018, 20:27
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see local apparent solar noon

When the sun is the highest in the sky for my location
Nate Monie, 12.07.2018, 15:36
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Add sketch up models as like google earth

It would be useful if Architects could add Sketch Up models like Google Earth to give a better idea of sun paths and shadows.
adam, 12.07.2018, 16:08
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Get rid of "weather report" and other extraneous blocks

"Weather report" covers zoom buttons for me. "About" and "Ideas" cover parts of the map. Get rid of them.
Noname, 18.07.2018, 17:35
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know what degrees the sun sets a rises at location

I want to know the directional angle the sun sets or rises compared to true north. Also, I would like to know the declination of magnetic north. I have measured about 8 degrees at my location at equinox.
Phillip Schwartz, 19.07.2018, 03:57
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report a bug

This is a great program! But there seems to be a bug: the line showing the sunset is not appearing ~ Aug 10-Sept 26 (I forget the exact dates) on a few locations in California (USA) that I tried.
Eugenia McCauley, 19.07.2018, 16:23
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Option to put in two different dates

To be able to determine the Delta sun path between two dates.
Todd Mitchell, 22.07.2018, 02:42
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elevation 1. summer 2. winter 3. current

Add elevation degrees at the users latitude and longitude for summer solstice, winter solstice, and current time of day for a user.
Lawrence Snider, 22.07.2018, 20:15
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Sunset line disappears between 13 Aug and 28 Sep

Testing on 26 Jul 2018, the sunset direction line disappeared for dates selected from 13 Aug through 28 Sep, 2018. Didn't check other years.
Rob, 26.07.2018, 16:12
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have the sunrise/sunset lines much longer

The sunrise and sunset lines need to be much longer so they can cover areas of bodies of water. I would like to see it longer so I can see the coverage of land for line of sight to sunrise or sunset. Great software/application!
Doug Guzek, 28.07.2018, 13:26
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Love the program. I would like a compass rose.

Ernest Hayes, 29.07.2018, 05:56
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