alex

More copy-pastas here: https://github.com/Stellarium/stellarium/blob/aa72f7d1073743091c6b180c55aec2938b985466/src/gui/astroCalcDialog.ui#L2609 https://github.com/Stellarium/stellarium/blob/aa72f7d1073743091c6b180c55aec2938b985466/src/gui/astroCalcDialog.ui#L2778 https://github.com/Stellarium/stellarium/blob/aa72f7d1073743091c6b180c55aec2938b985466/guide/ch_interface.tex#L1549-L1550 Can this copy-pasting be simplified? https://stackoverflow.com/questions/6244105/qt-resource-string

**Workaround to prevent losing data**: if the user notices that the wrong line was deleted, cancel the dialog (i.e. without saving the list). **Advanced workaround**: edit `data/observingList.json`

this is a high importance issue. it prevents users from managing observing lists, and the unaware will be bitten badly by this bug.

How about this: 

I know the standard, and it's far more strict (and less easy to read) than presented here. the standard says `YYYY-MM-DD` (as one of the possibilities). that's why I write...

@atque @gzotti @treaves

> > adding extra modes can be very painful with current implementation > > This is not a reason to mark this as "Won't fix". Someone some day may have...

Concerning the behaviour of light interacting with the Moon : have also a look at #1804

The 'X' deselects the a/c... then only can the panel '>' appears but it should be tar1090's? 

An alternative is to color-code the existing RTS tab: assign a background color to the R/T/S cells so that it becomes apparent which R/S events occur before/after SR/SS. To digress:...