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Summary
Shows some important circles like the meridian, the sphere of sky, the horizon; the observer ("Beobachter"), and some important points: directions north (N), east (E), south (S) and west (W); zenith (Z), and nadir (Nd); point of rising (A: Aufgang) and setting (U: Untergang), upper culmination (oK: obere Kulmination), lower culmination (uK: untere Kulmination), of some heavenly body.
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Shows some important circles like the meridian, the sphere of sky, the horizon; the observer ("Beobachter"), and some important points: directions north (N), east (E), south (S) and west (W); zenith (Z), and nadir (Nd); point of rising (A: Aufgang) and se