Equinox

[Semtex]

Today is equinox
is this value correct?

Screenshot-2017-9-22 MeteoBasaldella_LI (3).jpg (170.81 KiB) Viewed 8497 times

[Jachym]

Yes, this is correct, the equinox is at one particular time of the day, I cant remember what the block uses, either midnight or 12:00, and at that time it is already different

[Reinhard]

Would it be possible to make Equinox realtime, just like the sunplot? Or at least to see from when on the +8 min xx sec we shall count on?

[Jachym]

The block is based on days, it doesnt show real time info, that would be very complicated to calculate and it is not 100% accurate anyway, all these PHP scripts have several minutes inaccuracy, which is one of the reasons I avoided using exact times. It is due to the fact that the number of equations is huge and there is lot of rounding going on.

[iatros]

Wondering why two days after "equinox" my riset block still shows a day length longer than the night's I found out that "equinox" means the sun's crossing of the equator (actually Sep 22 20:02 UTC) and not the equal length of day and night which will be the case only between Sep 25 and 30 - depending on the latitude of your location!

Clipboard.jpg (23.29 KiB) Viewed 8448 times

[Jachym]

Wondering why two days after "equinox" my riset block still shows a day length longer than the night's I found out that "equinox" means the sun's crossing of the equator (actually Sep 22 20:02 UTC) and not the equal length of day and night which will be the case only between Sep 25 and 30 - depending on the latitude of your location!


Clipboard.jpg

Yup