This is my first post in this Forum, requesting for help. I noticed a fact that do not understand: When, in Cartes du ciel, an object is right-clicked, the box "Identification" appears, showing several parameters. Among them, azimuth and culmination are given, for a certain date and time. Now, if I use, as time for the chart, exactly the culmination time, I should find for the azimuth a value of 0° or 180°; instead, I find approximately one degree less, i.e. about 79° or 359°.
There must be a reason for that, but I cannot figure which could it be. Maybe an error in my observatory's coordinates? Many thanks and my best regards, Eduardo Flores
