Deimos (moon)

Deimos (IPA {{IPA|/?da?m?s/}} or {{IPA|/?di?m?s/}}; Greek Δείμος: "Dread"), is the smaller and outermost of Mars' two moons, named after Deimos from Greek Mythology. The adjectival form of the name is, presumably, Deimian.

References

• Robert S. Richardson, "If You Were on Mars", Astronomical Society of the Pacific Leaflets, 4 (1943) 214 (1943ASPL....4..214R) (Leaflet No. 178, December 1943)

Contemporary accounts of the discovery of Phobos and Deimos:

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• The Observatory, 1 (1877) 181
• Astronomische Nachrichten, 91 (1878) 11/12
• Monthly Notices of the Royal Astronomical Society, 38 (1878) 205
• Astronomische Nachrichten, 92 (1878) 47/48

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• Table II confirms 1877-08-12.32526 for first observation of Deimos