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Updated: October 20, 2026
In like manner he determined that the latitude of Konigsberg was 54° 43´, in place of 54° 17´, as adopted by Rheinhold. When Morsianus returned to Huen in July, he brought with him, as a present to Tycho, from John Hannovius, one of the Canons of Ermeland, the Ptolemaic Rules, or the Parallactic Instrument which Copernicus had used and made with his own hands.