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De cometis libelli tres : I. Astronomicvs, theoremata continens de motu cometarum, vbi demonstratio apparentiarum & altitudinis cometarum qui annis 1607. & 1618. conspecti sunt ... II. Physicvs, continens physiologiam cometarum nouam ... III. Astrologicvs, de significationibus cometarum annorum 1607. & 1618 (1619)

Kepler, Johannes, 1571-1630 · Avgvstae Vindelicorvm : Typis Andreae Apergeri, sumptibus Sebastiani Mylii bibliopolae Augustani · leaf 20

An illustration from De cometis libelli tres : I. Astronomicvs, theoremata continens de motu cometarum, vbi demonstratio apparentiarum & altitudinis cometarum qui annis 1607. & 1618. conspecti sunt ... II. Physicvs, continens physiologiam cometarum nouam ... III. Astrologicvs, de significationibus cometarum annorum 1607. & 1618, 1619, leaf 20
4&4 DEMONSTRAT.APPAR.ET'ALTITV.DIN, … quantitate anguli CFB per compenfationem. Poteft autem Cinter DB vagari tantifper,dum CED & CEB fint &quales: quia fi CinB EDA,ADBE:fifdem veró & EGF fuit equalis; Ergo ECF, EGF funt az quales. Sed EGF eft menfura motus diurni apparentis : :& C eft pun&um in portione trajedtionis diurnz D 5. Patet…

Comets -- 1607 · Comets -- 1618 · Astronomy -- Early works to 1800

Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.

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