Callisto

E174706

Callisto is a large, heavily cratered icy moon of Jupiter and one of the four Galilean satellites discovered by Galileo Galilei.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (1)

Label Occurrences
Callisto canonical 14

Statements (52)

Predicate Object
instanceOf Galilean moon
astronomical object
moon of Jupiter
natural satellite
albedoGeometric 0.20
atmosphereType very thin exosphere
atmosphericComponent carbon dioxide
oxygen
axialTilt_deg 0
belongsToPlanetarySystem Jovian satellite system
surface form: Jupiter system
belongsToStarSystem Solar System
diameter_km 4820
differentiation partially differentiated interior
discoveredBy Galileo Galilei
discoveryMethod telescope observation
discoveryYear 1610
escapeVelocity_km_per_s 2.44
exploredBy Galileo spacecraft
New Horizons
Pioneer 10
Pioneer 11
Voyager 1
Voyager 2
geologicalActivity very low
mass_kg 1.08e23
meanDensity_g_per_cm3 1.83
meanRadius_km 2410
memberOf Galilean moons
surface form: Galilean satellites
namedAfter Callisto (nymph in Greek mythology)
orbitalEccentricity 0.0074
orbitalInclination_deg 0.192
orbitalPeriod_days 16.689
orbits Jupiter
possibleSubsurfaceOcean yes
rankBySizeInJovianSystem second-largest moon of Jupiter
rankBySizeInSolarSystem third-largest moon
resonance not in Laplace resonance
rotationalState synchronous rotation
rotationPeriod_days 16.689
satelliteOf Jupiter
semiMajorAxis_km 1882700
surfaceComposition carbon dioxide
rock
water ice
surfaceFeature Asgard impact structure
Valhalla impact structure
heavily cratered terrain
multi-ring impact basins
surfaceGravity_m_per_s2 1.24
surfaceTemperature_K_max 165
surfaceTemperature_K_min 80
tidalHeatingLevel low

How these facts were elicited

The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.

Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10.

# Requirements
- If you don't know the subject at all, return an empty list.
- If the subject is not a named entity, return an empty list.
- Include at least one triple where predicate is "instanceOf".
- Do not get too wordy.
- Separate several objects into multiple triples with one object.
Input
Subject: Callisto
Description of subject: Callisto is a large, heavily cratered icy moon of Jupiter and one of the four Galilean satellites discovered by Galileo Galilei.

Referenced by (14)

Full triples — surface form annotated when it differs from this entity's canonical label.

Galilean moons member Callisto
imaging science system capturedImagesOf Callisto
subject surface form: Imaging Science System
Galileo spacecraft target Callisto
JUICE mission target Callisto
Europa neighboringMoon Callisto
Medicean stars member Callisto
Io isGalileanSatelliteWith Callisto
Ultraviolet Spectrometer studied Callisto
subject surface form: Ultraviolet Spectrometer (Galileo)