Moon
Phobos
Phobos is the larger and inner of the two natural satellites of Mars.
- Type
- Moon
- Domain
- Scientific connections
- Connections
- 3
NASA/JPL/Malin Space Science Systems · NASA media (public domain)
- Type: Moon
- Domain: Scientific connections
Experience system V6
Satellite world profile
A moon-first layout that links the body to its parent planet, orbital context, geology, and mission evidence when available.
- 01
Observe
NASA imagery anchors the visual reading with licensed source metadata.
- 02
Measure
Numerical fields come from the typed Solar System catalog and are omitted when not available.
- 03
Locate
Child of Mars.
- 04
Connect
3 graph relations shape the knowledge viewport.
- Object type
- Moon
- Graph relations
- 3
- Verified sources
- 2
- Image records
- 3
- Domain
- Scientific connections
- Status
- Graph entity
Scientific map
Orbit context
- Primary orbital anchor
- Mars
- Measured orbit field
- Orbital distance not recorded in this graph record
Original SVG diagram
Interior and field cues
- Atmosphere
- Not recorded
- Mean temperature
- Not recorded
- Gravity
- Not recorded
- Magnetic field
- Not recorded
Visual knowledge graph
Relationships, not isolated facts
This viewport is generated from the Asteria knowledge graph. Science, culture, and interpretive links remain separated by domain so visual context never changes the evidentiary meaning of a relation.
- Child ofMars
- TargetsMMX (Martian Moons eXploration)
- Associated withMoon Explorer
Image provenance
Photography as evidence
Continue the atlas
Curated next objects
Mars
space missionMMX (Martian Moons eXploration)
JAXA's planned mission to the moons of Mars — it will study Phobos and Deimos and return a sample of Phobos to Earth, testing whether the Martian moons are captured asteroids or debris from a giant impact.
atlas viewMoon Explorer
An explorer of the moons of the Solar System — from Earth's Moon to the ocean worlds of Jupiter and Saturn — organised by their host planet and physical character.
space missionMars 2020
Mars rover mission (Perseverance) · NASA · launched 2020.
space missionMars Express
Mars orbiter · ESA · launched 2003.
space missionViking 1
Mars orbiter & lander · NASA · launched 1975.
Observation
How this was captured
- Source
- NASA
- Observation date
- 2003-05-16
Gallery
Martian Moon Phobos in Thermal Infrared Image
Colors in this image of the Martian moon Phobos indicate a range of surface temperatures detected by observing the moon on Sept.
2017
NASA/JPL-Caltech/ASU · NASA media (public domain)
Data
Scientific data & provenance
Data & provenance
- Stable ID
moon:phobos- Type
- Moon
- Domain
- Scientific connections
- Relationships
- 3
- Graph version
- 1.0.0
Dataset membership
Open data
In the graph export: graph.json · graph.jsonld
Planned API: GET /api/v0/entities/moon:phobos
Scientific quality
Substantial4 of 6 applicable dimensions complete
- Description
- Complete
- Source coverage
- Complete
- Relationship coverage
- Complete
- Review coverage
- None
- Citation coverage
- None
- Image coverage
- Complete
- Timeline coverage
- Not applicable
Scientific entity. Dimensions that cannot apply to this object are excluded rather than counted as gaps. See the evidence framework and authority dashboard.
You might also explore
Sources & references
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
- NASA JPLJet Propulsion Laboratory / Solar System Dynamics
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.