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The magnetic declination can be quite significant in some locations. If you live on the green line in the image below then you magnetic compass will point directly at the north pole. Each line on either side of the green line represents plus or minus 2° of declination. In addition, as you said...

Yeah, I was playing with the settings some last night and now I'm not so sure either. If magnetic north is turned off then I'm sure it's all good. The little x is pointing at Polaris rather than at true north. That has to be where the discrepancy is coming from. Regardless, where that little x...

Take a look at this... Then look at your photos and look at how far east your phone thinks North is from True North. As we say here in Texas, that just aint right. I use this app nearly every day because I have to know which direction the house I'm inspecting faces and most of the...

Knight, I suspect that you had the app set to use magnetic north rather than true north. Is that correct?

Here's my pics for the evening of 5/8/18 from 00:00 - 03:00 UCT (7pm - 10pm local time)... The Sun was blasting me right in the face and I couldn't see my screen hardly at all. As a result, the Sun is slightly off center but is at 282.9° and +12.5° above the horizon. Sun is at 290.1° and...

I just took my 01:00 UCT photo for this evening. I went ahead and took a 00:00 UCT photo as well. I'll wait until I've taken the 03:00 UCT photo and then will post them all at once. I am centering the Sun and the horizon in the image, by the way.

You just run the app and have it set so that it uses your camera instead of showing you a map, which I think is the default setting. You can swipe left or right to change the color of the font so that it shows up nicely against the sky. I have mine on a nice orange color. And, of course, your...

It's called Spyglass. http://happymagenta.com/spyglass/ It has a lot of settings, not all of which are intuitive. You might need to fiddle with it to get it set up the way you want it. Also, and this is IMPORTANT for the purposes of this experiment.... Everyone needs to have it set to...

So that's pretty cool, really. You can see that the sky is lit up just about the same as in mine only one hour apart. Also, the sky darkens way too rapidly for it to be disappearing into the distance. You go from full daylight to near totally dark in well under two hours. Your third one is cool...

Yeah! I was thinking that from the moment I snapped the 01:00 UCT photo last night. Although people should be careful about how long they have the Sun shining into their camera. What do you think about starting an hour earlier and only continuing through to 03:00 UCT if we have someone in the...

Here's all three of my photos: 01:00 UTC: Sun at -.2° below horizon... 02:00 UTC Sun at ~-10° below horizon... 03:00 UTC Sun @ -23° below horizon (well outside of image)...

Okay, the file format seems to be the issue. The iPhone saves it as a PNG file. I'll convert everything to jpg from now on.

I don't know what to do. :(

I do! Clicking the little 'insert image' icon above where you type the post is the only way I know of to put a picture in a post. I've never had so much trouble with this sort of thing. :idunno:

I changed the file format to jpg and added the new image to the posts. If you now see two links, click the second one and see if it works.

Which browser?

It's works for me. Is anyone else not getting it? How do these guys get the big image inside their post?

You might need to play around with the settings (there's a lot of them). You want to make sure the font color is one that will show up well against the sky, etc.

Due west @ 21:00 hours (02:00 UTC) @ my back yard (click on image for full sized pic)... The greenish light on the right is a large yard light in my neighbor's yard (I hate it!) Notice the position of the Sun shown by the app nearly off the right side of the screen about -10° or so below the...

Umm, I've got bats flying around in my back yard already. It's gonna be dark as can be in an hour where I live.