Zodiac celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude and the Sun's position at vernal equinox as the origin of longitude. The English word ' derives from ', the Latinized form of the Ancient Greek "zōidiakòs kýklos" (), meaning "cycle or circle of little animals". "Zōidion" () is the diminutive of "zōion" (, "animal"). The name reflects the prominence of animals (and mythological hybrids) among the twelve signs. The zodiac was in use by the Roman era, based on concepts inherited by Hellenistic astronomy from Babylonian astronomy of the Chaldean
Sebastian (name) Sebastian (name) Sebastian is a given name. It comes from the Latin name "Sebastianus" meaning "from Sebastia", which was the ancient Greek name (Σεβάστεια) of the city now known as Sivas, located in the central portion of what is now Turkey. The name of the city is derived from the Greek word σεβαστός ("sebastos"), "venerable", which comes from σέβας ("sebas"), "awe, reverence, dread", in turn from the verb σέβομαι ("sebomai"), "feel awe, scruple, be ashamed". "Sebastos" was the Greek translation of the title "Augustus", which was used for Roman emperors. Sebastian became a widely used name because it was the