Stellarium
wrong time offset in stellarium-web
When I change the location on the web version it doesn't affect the time. I.e. it seems that it will still use the local time (offset). When I change the location on the app version to a manual location it will display a time offset (e.g. -7) and also apply it so that the time is local time of that place, not where I am.
Example:
- I open https://stellarium-web.org and location is Switzerland (where I actually am, CEST = UTC+2)
- I set location to Los Angeles (PDT, UTC-7).
- When I want to see the night time I have to set it to 10:00 (am), which would be daytime in LA.
Expected behaviour: Setting the same location (Los Angeles, USA), date/time (e.g. 01:00), and direction (East) should show the same sky. However, it might be daytime when using the same point in time but a different timezone and because of the different position I wouldn't expect Jupiter to be at the same relative direction.
Actual behaviour: I have to set the time to 10:00 to see the same night sky, when Jupiter is also East for some reason.
But I was there and Jupiter was East here in Switzerland, so this is just confusing. I also tried Tokyo. I find it hard to believe that 17:00 is the middle of the night in Japan. Obviously, that is my local time. But then on the App it is nighttime in Japan when I set the time to something like 01:00 and Jupiter is at the same position (East). But they are in a different time zone, so wouldn't Jupiter be at a completely different position? I can't tell which one is wrong or if both the web and the app are wrong or I just don't get how any of this works. It is quite confusing.
Some screenshots with Jupiter more or less positioned East:
I also notice that the App is in German (I live in a German speaking part of Switzerland) but stellarium-web is always English. No problem for me but I just noticed it and some might prefer another language.
This explains why the app observes Daylight Savings even when I change my location within the app to India or Japan, both countries that don't observe DST. That had confused me!
If I change my OS system settings to show my location as India or Japan, the Stellarium web app stops observing DST!
Hi, I need to ask if this has been/or is being fixed, as it has been over a year. I am still learning to use Stellarium Web and am also having this same problem where the reported time in another time zone is incorrect and does not update when changing location.
It's clearly not fixed. Or does the sun set at 2:30 AM and rise at 3 PM in Los Angeles?
It should be easy to just use the same timezone as the one selected for the location. But somehow it seems to use the local time of where the user is located. That rarely makes sense. It's only interesting when you want to see what it looks like at some other place at a certain local time at your location. But even then, that other place might be somewhere else. If that was a feature it should have an option to override the time zone in "view settings" so the time is shown using that other time zone.
Assuming it's correct in the app, it should be the same in the web view. But as explained in the original report it's all just very confusing to me.
There are two different programs, developed in different programming languages, targeted at different audiences.
One does not need installation, runs in a webbrowser and has only few options in a simple menu, solving the question "what's outside, here". At best, "what's the sky right now in L.A.".
The other has a menu system with a few hundred settings to provide solutions to most astronomical visualisation needs. The menu system has been described as easy by school children and as "sucks horribly" by veteran amateur astronomers.
You just never get it right.
Use the one that works best for your tasks.
That's fine. This bug report isn't about how complex/simplified the options are. It's about how it shows the sunrise in the afternoon in LA, which is simply wrong. In both applications you would expect that you can change the location and the app behaves exactly as if you were actually there using the same app. I.e. manually choosing the location should just override whatever the system gives as a default input and it should always use the local time of that location unless something else was chosen in the settings.
But if someone has just a Chromebook, is the Web version the only means to access Stellarium?
So far (not having one) I could not find out a clear answer about whether a Chromebook allows local installation of programs. If this is not a full desktop, I don't understand its existence.