Tidal Forces - Northern Hemisphere

Excuse me looking under the hood.
Genius.
Every single layer is an Education .
Respect for allowing us to have a look.

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Hood off :joy:

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I couldn’t help it. I added in a Moon Visibility Box, as a very light zone above your geographic location. If the moon is within or intersects the box, you should be able to go outside & see the moon at the relative position in the sky. If the moon only intersects the box, it should be on the appropriate east/west horizon. Maybe now I can calculate the moonrise/moonset?

Ok, now I acknowledge, it’s getting too busy…

¯\_(ツ)_/¯

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Re Synced it but did not get the Moon visibility Box. Its like The Fantastic Clock at the Town Hall in Prague. You have to learn to read it. Great Fun.

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I think you should split them into 2. Focus on tidal stuff in 1 and on moon stuff in the other.

The moon rise/set is something I have looked into as well.
I believe it was you who pointed me into the direction of the “every day 50 minutes later” rule of thumb, and I have applied that to a test face:

However, according to your visibility box, the moon is visible now for me (and it is), and mine still says it is going to rise in 20 minutes from now:

Would love to get that accurate

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Yeah, the face is quite busy and I see your point to split it into two. But they are so intertwined, I’m just not sure… Knowing this is such a non-mainstream watch face, I’m not sure if it is worth it. Maybe if i split it up there will be more interest. I will think about it.

Yes, that was me, I did say that rule of thumb in a thread on my constellation watch face.

I found that rule in an online almanac somewhere & it was useful for the situation. It is only an average of 50 minutes per day, while in reallity it varies 30-70 minutes depending upon your location. Here’s a non scientific article that explains it well:

So for the tidal part of this new model I went to the roots of tidal formation, and found a recent video of a model on moon and sun forces:

That showed me the method & I already had the sun location plotted from sunrise/sunset calcs, the earth rotation, and the geometric location figured out from another face, I just needed to figure out the Lunar orbital period which turns out to be 27.322 days (27 days works out better in the model) and pluck it into an orbit along with some elipses behind the earth & apply a lunar and Sol rotation to them. Boom, if all fell together, and graphically works out.

Since the model already shows the moon location for the tides, I noticed that the Facer generated moon phase icon at the bottom was matching what I would imagine a viewers perspective would be at the geographic location on the earth if they were looking at the live moon model. It was simply a matter of adding a white “moon in view” box at 15% transparancey above the viewers perspective and rotating it with their position on the earth. To figure out the actual time of moon-rise and moon-set, I’ll have to do some geometry between the geographic location and the tangent edge of the lunar circle (or maybe just use the centre of the circle for simplicity). As we know, the facer creator interface sucks for such geometric calculations and the Tan function - I know this from working on weather forcast graph models. The expression will surely be a page or two long. Sometime when I need a brain boost (or meltdown), I may get to it. But, they will be single expressions that can be plucked into any watch face without any graphics. I’ll surely post the expressions if I do get to it.

Thanks for the Cool pix of your model, this model, and your photographic proof! I’m glad to see some validation of the model with the moon being in the right spot at the right time somewhere else in the world. That really is cool! If your model is based upon the 50 minute rule of thumb almanac from that other thread, keep in mind it’s only a rule of thumb, and really varies by 30-70 minutes a day depending on the location, and may explain your discrepancy. This newer watch face model’s approach is probably better for accuracy.

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ok I’m lost, what kind of shit are you smoking guys​:grin::grin::grin::grin:

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This is turning into one of the best Topics Ever.
Sun came up as the Moon went down for Us in Penzance Cornwall this morning.

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I find that watch face breath taking and awesome. VERY good job.

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Welcome to the Community Kristen, happy to see you’re wearing Brads Face, nice one :clap:

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Thank you, although now that I’m wearing it. I wish the writing on the right side was a little bigger, so I could read it better.

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@alsx65 , only the best stuff!

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Thanks @garf44 !

What text on the right side are you having a hard time seeing? The steps? Moon age?

The reason I ask is things flip lift/right depending upon where the reall moon location is, so there are no conflicts. Admittedly, I need my reading glasses to see the thing…

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bradtc is a nice guy, and very helpful, I’m sure he’ll sort it out for you real soon, maybe even make all the text bigger for you :grin:

Damn, need to dig into all this further.
It looked good this morning as well:

However, this evening some stuff was off:

moon7

As you can see it’s past sunset, but the location is still in the light part. Also, the moon was in view, but according to “the internet”, moon rise would be 19:30 here today.
Still, great stuff!

I made a lite version for myself to look at all the sunny/moony stuff when I have time :stuck_out_tongue:
image

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ok, now i understand :grin::grin::grin::grin::grin::ok_hand:only top quality :joy::joy:

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Some nice Faces you have on your profile @alsx65 and much respect to you for the lucky-andrei tribute Face :+1:

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Thanks for the update @ThaMattie. Nice to see another data point.

I am seeing a weird anomoly though. At your display time of 18:43, which is past the 6:31pm sunset time, your red longitude line should be displayed slightly past the 6:31pm suset time, but instead it is before the sunset. I am wondering, do you have daylight savings time there in Reimst? If u don’t, that might be it. Daylight savings time ends for the year after this weekend over here, so things might balance out, but I still may make some changes relative to that so it is universally correct.

I’m interested in how your lite version works out. Maybe you can figure out that lunar 27 vs 27.322 day orbital period accuracy issue the model has. I’m still trying to figure it out myself.

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Yeah it’s daylights savings at the moment. We go back on 30/31 October

As for my lite version, I barely have time so doubt it will result in anything soon

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Okay, thank you Brad, I really like the whole thing.

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