superior planet
Let an agent explain the superior planet concept, compute and describe oppositions and visibility, and separate it from the inner-outer and terrestrial-giant classifications.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Define The concept.
Which
Which planets.
Which
Which planets.
- Which planets are superior, and why? definition
- How does this differ from inner and outer or terrestrial and giant planets? definition
Geometry
Configurations.
Geometry
Configurations.
- What are opposition, conjunction and quadrature for a superior planet? definition
- Why does retrograde motion occur near opposition? definition
Observe Seeing them.
When
Best time.
When
Best time.
- When is the next opposition of this planet, according to ephemerides? provenance
- How bright and large will it appear? measurement
How
Equipment.
How
Equipment.
- What can be seen with binoculars or a small telescope? boundary
- Which features are visible on each planet? provenance
Motion Calculations.
Synodic
Synodic period.
Synodic
Synodic period.
- What is the synodic period of this planet, and how is it computed? measurement
- Why are Mars oppositions so variable? definition
History
Historical significance.
History
History.
- How did retrograde motion of superior planets shape models of the solar system, according to historians? provenance
- Which thinkers were key? provenance
Teach Education.
Demo
Demonstrations.
Demo
Demonstrations.
- How can opposition and retrograde motion be demonstrated with models or software? action
- Which misconceptions arise? provenance
Exoplanets
Beyond the solar system.
Exoplanets
Other systems.
- Does the superior planet concept apply in other planetary systems? boundary
- How is it generalised? definition
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.SPC
What it is Filled
A planet whose orbit around the Sun lies outside the orbit of Earth, namely Mars, Jupiter, Saturn, Uranus and Neptune; superior planets can appear at opposition, near which closest approach and peak brightness generally occur but need not coincide exactly, and never show crescent phases from Earth, in contrast with the inferior planets Mercury and Venus.
Why it exists Filled
Let an agent explain the superior planet concept, compute and describe oppositions and visibility, and separate it from the inner-outer and terrestrial-giant classifications.
Distinguishing features Filled
- Orbit outside Earth
- Show oppositions
- No crescent phases
- Retrograde loops near opposition
What robots and AI may and may not do Filled
Must not
- Present astrological claims about superior planets as astronomical facts.
- Give observing advice that risks eye damage, such as pointing optics near the Sun.
- Misstate dates or visibility in ways that send observers to the wrong place or time.
Only with a human decision
- Publishing predictions for public observing events.
May
- Report positions, oppositions and visibility of superior planets from published ephemerides.
- Explain why superior planets show retrograde motion and no crescent phases.
Moral aspects Filled
- Public sky events build interest in science but can be distorted by false claims.
- Observers can be harmed by careless advice about solar proximity.
Who is affected
- Amateur and student observers
- Readers of science outreach
Owners Filled
Steward
Nobody: natural bodies held in common; astronomical unions coordinate naming and data.
Master systems
- Planetary ephemerides from national almanac offices
Links to other meta-models Filled
parent
- Q13205267 - registry parent class
related
- inner and outer planets - category
- inferior planet - related concept
- celestial body - category
- telescope - instrument
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.superior-planet
- Wikidata: Q844911 (https://www.wikidata.org/wiki/Q844911)
Direct properties required Filled
- Orbital semimajor axis: AU - The semimajor axis is derived from orbital observations and exceeds Earth's orbital semimajor axis for every superior planet.
- Sidereal orbital period: Earth years - The period is determined from orbital observations as the time required to complete an orbit relative to distant stars.
- Equatorial diameter: km - Diameter is determined from imaging or spacecraft measurements using a stated surface or atmospheric reference level.
- Planetary mass: kg - Mass is inferred from gravitational effects on satellites, spacecraft or other bodies.
Recognition required Filled
- Can be seen all night at opposition
- Never between Earth and Sun
- Inner and outer planets is a different split based on the asteroid belt
- Bright star-like points that move against the stars; discs in telescopes.
Capabilities and actions required Filled
- identify superior planets
- explain opposition, conjunction and retrograde motion
- find when a planet is best observed
- separate related classifications
Hazards and failure modes required Filled
- Confusing superior with outer or giant planets
- Outdated opposition dates
Standards and interfaces required Filled
- IAU definitions
Context of use required Filled
- Observational astronomy and planetary geometry.
- Mars
- Jupiter and Saturn
- Uranus and Neptune
- dwarf planets beyond Earth (related)
Sources Filled
- Wikidata item Q844911: superior planet - identity and sense of the item
- Wikipedia: Superior planet - general description of the item
Open questions
- Should each planet be a separate entry?
- How should ephemeris data be linked?
- How should terminology be clarified?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q844911/spec.json