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Observatio & demonstratio cometae aetherei, qui anno 1577 et 1578 constitutus in sphaera veneris, apparvit, cum admirandis eius passionibus, varietate scilicet motus, loco, orbe, distantia à terrae centro, &c. adhibitis demonstrationibus geometricis & calculo arithmetico, cuiusmodi de alio quoquam cometa nunquam visa est (1578) - Page 6 - Source Library

Observatio & demonstratio cometae aetherei, qui anno 1577 et 1578 constitutus in sphaera veneris, apparvit, cum admirandis eius passionibus, varietate scilicet motus, loco, orbe, distantia à terrae centro, &c. adhibitis demonstrationibus geometricis & calculo arithmetico, cuiusmodi de alio quoquam cometa nunquam visa est

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English

Observation & demonstration

OF THE AETHERIAL

COMET, WHICH APPEARED

IN THE YEAR 1577 AND 1578, SITUATED

IN THE SPHERE OF VENUS, WITH THE ADMIRABLE

phenomena thereof, namely the variety of its motion, place, orbit, distance from the center of the earth, &c.,

using Geometric demonstrations & Arithmetical calculation,

of such a kind as has never been seen regarding any other Comet.

BY

M. Michael Mästlin of Göppingen.

A celestial map shows the path of the comet through various constellations, including Aquarius, Capricorn, Sagittarius, and Scorpio, with a table of dates and positions, and a small table of stellar magnitudes.

MAGNITUDES	OF THE STARS
1	*
2	*
3	*
4	*
5	*
6	+

This Comet is a messenger of new things,
obtained with much blood,
yet hoped for with much peace.

Tübingen, printed by Georg Gruppenbach.

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