Object of the day ·
Moon
Phobos
Fun fact
Phobos is tidally locked: it spins once per orbit (7.7 hours), so the same face always points at its planet.
Worked out from the catalogue’s own measurements for Phobos.
Key stats
- Diameter
- 23 km
- From its planet
- 9,377 km
- Orbital period
- 7.7 hours
Explore the full record for Phobos
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