Synonyms were used for:
Astronomy
Search without synonyms:
keywords:("Astronomy")
Azimuthe circumpolarer Sterne / von Julius Bortfeldt ; 1. Theil: Nord-Breite : nebst Sternkarte
Azimuthe circumpolarer Sterne / von Julius Bortfeldt ; 2. Theil: Süd-Breite : nebst Sternkarte