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evening star

vr.tr.evening-star · thing-q319013

Let an agent explain what the evening star is, tell when Venus or Mercury is visible in the evening, and describe cultural names and meanings with attribution.

Thing Registry Physical world and living systems PHY.SPC
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

See Spotting it.

When

Current visibility.

When

Visibility.

  1. Is Venus or Mercury currently visible as an evening star from this location, according to an ephemeris? provenance
  2. Where and when should the observer look? action

Identify

Is it the evening star.

Identify

Identification.

  1. Is the bright object seen in the west a planet, a star, an aircraft or a satellite? boundary
  2. How can it be confirmed? action
Science Why it appears.

Orbit

Inner planet apparitions.

Orbit

Orbits.

  1. Why do Venus and Mercury alternate between evening and morning visibility? definition
  2. What is greatest elongation? definition

Phases

Phases and brightness.

Phases

Phases.

  1. Why does Venus show phases and vary in brightness? definition
  2. What can a small telescope show? provenance
Culture Names and myths.

Names

Cultural names.

Names

Names.

  1. What names have cultures given the evening star, and when was it realised to be the same object as the morning star? provenance
  2. Which deities are linked to it? provenance

Literature

In literature.

Literature

Literature.

  1. How is the evening star used in poetry and song? provenance
  2. Which examples are notable? provenance
Learn Teaching.

Teach

Teaching.

Teach

Teaching.

  1. How can the evening star be used to teach planetary motion? action
  2. Which misconceptions arise? provenance

Photo

Photographing.

Photo

Photography.

  1. How can the evening star be photographed at dusk? action
  2. Which conjunctions are photogenic? provenance

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.SPC

What it is Filled

A bright planet, usually Venus and sometimes Mercury, seen in the western sky after sunset, called the evening star in many cultures, with the same planet appearing as the morning star before sunrise at other times of its orbit; the term is cultural and observational rather than a class of star.

Why it exists Filled

Let an agent explain what the evening star is, tell when Venus or Mercury is visible in the evening, and describe cultural names and meanings with attribution.

Distinguishing features Filled

  • A planet, not a star
  • Evening apparition
  • Usually Venus
  • Cultural name

What robots and AI may and may not do Filled

Must not

  • Present the evening star as a star rather than a planet.
  • Present astrological readings of the evening star as predictions.
  • Mock the cultural and religious meanings attached to it.

Only with a human decision

  • Publishing interpretations of its meaning in a living religious tradition.

May

  • Explain that the evening star is a planet, usually Venus, and when it is visible.
  • Describe its role in the myths and calendars of many cultures.

Moral aspects Filled

  • The evening star carries religious and cultural meaning for many peoples.
  • Public understanding of astronomy depends on clear explanations.

Who is affected

  • Learners
  • Cultural and religious communities

Owners Filled

Steward

Nobody: a planet seen from Earth, held in common.

Links to other meta-models Filled

parent

  • Q133846117 - registry parent class

related

  • planet - category
  • Venus - usual identity
  • Mercury - sometimes
  • sky - where it is seen

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.evening-star
  • Wikidata: Q319013 (https://www.wikidata.org/wiki/Q319013)

Direct properties required Filled

  • Apparent visual magnitude: Magnitude - Brightness is measured photometrically and varies with the planet, its phase and its distance from Earth.
  • Angular separation from the Sun: Degrees - Elongation is measured between the apparent positions of the planet and the Sun in the sky.
  • Apparent angular diameter: Arcseconds - The angular width of the planetary disk is measured telescopically and varies with distance from Earth.

Recognition required Filled

  • Bright, does not twinkle much
  • Low in the west after sunset
  • Sirius is a true star and rises elsewhere
  • A very bright, steady point of light in the west after sunset.

Capabilities and actions required Filled

  • explain which planet is the evening star
  • give current evening visibility with sources
  • describe cultural names and mythology
  • distinguish from stars and other objects

Hazards and failure modes required Filled

  • Calling it a star
  • Mistaking aircraft or satellites
  • Confusing morning and evening apparitions

Standards and interfaces required Filled

  • No regulation; astronomical ephemerides

Context of use required Filled

  • Naked-eye astronomy and culture.
  • Venus as evening star
  • Mercury as evening star
  • morning star apparitions
  • mythological figures named for the evening star

Sources Filled

  1. Wikidata item Q319013: evening star - identity and sense of the item
  2. Wikipedia (de): Abendstern - general description of the item

Open questions

  • Should the morning star be a separate entry?
  • How should ephemeris data be linked?
  • How should mythology be attributed?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q319013/spec.json