No answers from the Equation of Time Smartwatch face developers, however after some days and several attempts I could finalize my purchase (maybe thanks to a new s/w version installed on my smartwatch, maybe because of other obscure reasons). Now I have it installed and I can tell you about it.
The appearance is exactly what you can see on the Play Store (see the attached image). The astronomical information that you can get are the following: - sunrise time - sunset time - EoT value - moon phase Each of them can be selectively enabled or disabled from your smartphone. As far as I can say after a few hours test, all data look almost correct. Today values (compared to SolEtUmbra) for my location and my time zone are: sunrise 8:06 (geometric 8:11:47 - apparent 8:00:32) sunset 16:49 (geometric 16:43:16 - apparent 16:54:44) EoT 2:00 (1:40) Sunrise and sunset times seem to be the apparent ones, maybe corrected for refraction but not for the horizon dip (I'm just guessing as I could not find any explanation anywhere). EoT is about 20 seconds wrong, but it is shown on a small dial where resolution is one minute only: it's therefore very difficult to get a more precise reading. Moon phase is shown by means of a partially obscured moon figure: it's a qualitative representation and I cannot say how it is correct or not. All in all, in my opinion this is a pleasant watch face that can be well appreciated by gnomonic people. However the lack in precision in the EoT value does not permit to use it for accurate verifications (f.i. when checking a big darkroom sundial). It would have been much better to include an additional hand to show the EoT on the main dial and even better to add one more hand showing local time (i.e. including longitude difference). Finally I would appreciate an option to show all the astronomical data on a digital watch face when a higher precision is needed. As a conclusion I think that there is space for my future smartwatch app development :-) Ciao. Gian 2016-12-17 21:11 GMT+01:00 rodwall1...@gmail.com <rodwall1...@gmail.com>: > Hi Gian, > > Thanks for trying and testing the Equation of Time face for Smart Watches. > Will be interesting to see how it goes. > > Even though you have been beaten in producing a watch face. Do still push > ahead with your own version. As there is enough room for another maybe more > interesting Equation of Time face. The market is worldwide. > > Thanks, > > Regards, > > Roderick Wall. > > ----- Reply message ----- > From: "Gian Casalegno" <gian.casale...@gmail.com> > To: "sundial" <sundial@uni-koeln.de> > Subject: Equation of time on a Android Smart Watch > Date: Sun, Dec 18, 2016 1:58 AM > > Hi, > I have recently purchased a smartwatch with the idea of developing some > gnomonic features for Android Wear. > Now I see that I have been beaten :-( > > Anyway I have just tried to download this "Equation of Time" app but > unfortunately it failed. > I have tried several times with no success, even if my Moto 360 smartwatch > is said to be fully compatible. > > I have then sent an email to the app developers and I am now waiting for > some help. > I will keep you informed. > > Ciao. > Gian > > > 2016-12-17 1:34 GMT+01:00 rodwall1...@gmail.com <rodwall1...@gmail.com>: > > > Hi all, > > > > Some time ago there was some discussion on Equation of time watches that > > cost $60,000 plus. Much too much for my pocket. > > > > Someone I can't remembered who. Indicated that it would be possible to > > have The Equation of time on a Android Smart Watch. But they couldn't find > > one. > > > > I thought that if there was a Equation of time for a Android Smart Watch. > > I would consider purchasing a Smart Watch. So I went to Google play and > > found what I thought was a nice watch face. And sent them a email > > suggesting that they might like to produce one for the Equation of time. > > > > They thought that it was a good idea and produced one as in the link below. > > > > The problem is I don't have a Android Smart Watch to see if it works. > > > > Maybe someone with a Android Smart Watch may like to try it and report > > back to the group as to how good it is. Cost is $1.39. > > > > https://play.google.com/store/apps/details?id=com.cga.time.equation > > > > Hoping that it works, > > > > Roderick Wall. > > > > > > --------------------------------------------------- > > https://lists.uni-koeln.de/mailman/listinfo/sundial > > > > > > > >
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