These maps show the aspect of the sky in four moments of the year at 22:00 local time, in an area of Central-Southern Europe (precisely at 45° Lat. N).



In the summer we must add one hour, as 22:00 corresponds to 23:00 when the clocks are adjusted to summer time.
Furthermore, as one travels West, local time moves progressively forward compared to the time on the central meridian (MC) of the Central European Time Zone (which is the time indicated by a common watch in that time zone).


The small map above allows you to adjust this setting according to the location.
For example if we are in St. Moritz (CH) the sky shown on the maps can be seen:
- in winter at 22:00 + 0:20 = 22:20.
- in summer at 22:00 + 1 + 0:20 = 23:20.



  The motion of stars in the sky
  Learning about the sky
  Sky map

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