Deimos (moon of Mars)
Deimos (satélite de Marte)
- Date
- 1877 · confidence high
- Place
- United States Naval Observatory, Washington, D.C., United States
- Credited to
- Asaph Hall
- Field
- Cosmos & Earth
What was discovered
Hall discovered Deimos, the smaller and outer of Mars's two moons, during a systematic search for Martian satellites with the Naval Observatory's 66 cm refractor; six days later he also found Phobos.
What it led to
- Confirmation that Mars has natural satellites
- Discovery of Phobos days later
- Study of the origin of the Martian moons (possible asteroid capture)