Web: Date/Time Bugs

[dflateau]

So in the web version, there are several date problems, bugs, and lacking features.

1. You can't enter a date. You have to use the arrows above the various date elements as spinners to scroll you way to a year.
2. When you do get to a date in the past, say 1500 CE, the day and time controls become wonky. Controls to advance the days, hour, year actually decrease those values, and by random amounts each time. It's very difficult to find an exact date/time using the spinner method and time controls far in the past. I'm not sure if the sky is even accurate at these times - I've seen indications that it's not.
3. You cannot go to a year past 0. Any attempt to do so jolts you to another date and time in CE.

Anyone expericing these issues?

[gzotti]

Stellarium-web was not created for historical research but for a quick view around what's up tonight or next week. Stellarium desktop has seen 15 years of improvements dedicated to historical applicability. (2) may be already caused by Julian/Gregorian calendar issues. Just don't use it for the wrong field.

[10110111]

Yes, I also see this. Starting from 1932-11-01 and lower the addition or subtraction of a year/month/day/hour/minute/second results in an addition of 1m12s to the result. And going beyond year 0 results in a jump to 1858-11-22.

[gzotti]

Ah, 1932? Was this the beginning of ΔT corrections? Or introduction of ET? Or rather some limit of calendar functions in one of the underlying calendar libraries?