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Phobos
Image: Wikimedia Commons

Phobos

Natural satellite of Mars

Entitymoon of MarsQ7547

Also known as Mars I · Phobos (moon) · Mars I Phobos

Instance of

Overview

All data

52 statements · 21% with external sources · numbers in brackets are citations

Named after
Discovered by
Orbits
Site of astronomical discovery
Discovered
Apparent magnitude
  • 11.8 astronomical filter: V band
Mass
Albedo
  • 0.071
Eccentricity
  • 0.0151
Semi-major axis
  • 9,377.1 km
Inclination
  • 26.04 degree
Orbital period
  • 0.3189 days
Diameter
  • 22.5 km
Density
  • 1.876 g/cm³
Surface gravity
  • 0.0057 metre per square second
IPA transcription
  • ˈfoːbɔs language: German · applies to name of subject: Phobos
Volume as quantity
  • 5,695 cubic kilometre
Periapsis
  • 9,234.42 km
Apoapsis
  • 9,517.58 km

On other databases

29 identifiers linking Phobos across the web's reference databases