Phasis Doctrine

Phasis describes how a planet's visibility and solar relationship are categorized around appearances, disappearances, and orientation to the Sun.

The current summary is descriptive and does not claim to calculate actual observational visibility under local atmospheric conditions.

The local notes connect phasis to traditional visibility language and modern traditional explanation, with Abu Ma'shar material supporting specific synodic bands for superior planets.

the overview keeps event-search and state-description language distinct.

The phasis family can describe broad solar condition bands, first and last visibility events, and morning or evening phase language.

This overview names this range without promoting gated observational claims into reader-facing summary.

The cited material supports a public description of the current descriptive phasis state layer built from solar proximity and orientation.

It can be shown alongside planetary condition, but should not be used as a complete observational model.

The cited sources do not establish atmospheric heliacal visibility, local horizon conditions, or a complete observational astronomy model.

The current public explanation remains state-based and conservative.

Phasis relates to planetary condition, solar combustion and related solar proximity states, and event-observation pages.