Heavens and weather

Phase and appearance

φάσις

phasis

Phasis is an appearance or becoming visible.

From the book

Stobaeus, Volume I

John Stobaeus · Diotimos Editions · 2026

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Orientation

At a Glance

  • The wordPhasis is an appearance or becoming visible.
  • In StobaeusThe report of the moon’s period describes a month from appearance to conjunction.
  • In this edition“Appearance” stays closest to this wording; explain any use of “phase” rather than assuming an exact modern definition.
  • A place to beginAppearance is contrasted with conjunction in the stated lunar period.
English renderings
appearance; phase

Meaning

Phasis is an appearance or becoming visible. Its astronomical meaning must be distinguished from other Greek words with the same spelling.

Use in the book

The report of the moon’s period describes a month from appearance to conjunction. Phasis marks the visible appearance used as one boundary. The modern word “phase” is related in sense, but its broader application to every stage of the lunar cycle should not replace the particular event named in this sentence.

Places to read

  1. I.8.42c.1Appearance is contrasted with conjunction in the stated lunar period.

Translation in this edition

“Appearance” stays closest to this wording; explain any use of “phase” rather than assuming an exact modern definition.

Source note

Wachsmuth, volume I, printed pp. 107. The thirty-day value and the boundary formula are retained as the ancient report gives them.