Noun
An instrument for obtaining directly, without calculation, the true bearing of the sun, and thence the variation of the compass
Source: Webster's dictionaryHorace was probably also with Maecenas on one of Octavian's naval expeditions against the piratical Sextus Pompeius, which ended in a disastrous storm off Palinurus in 36 BC, briefly alluded to by Horace in terms of near-drowning. Source: Internet
Odes 3.4.28 Odes 3.4.28: "nec (me extinxit) Sicula Palinurus unda"; "nor did Palinurus extinguish me with Sicilian waters". Source: Internet