| Chrono Quest | 15世紀第3期 |
| Offer Method | Celestial Discovery without map |
| Difficulty | 10 |
| Time Limit | none |
| Town | There are no Towns available for offers. |
| Required Skills | Astronomy (10), Visibility (10) |
| Discovery | Astronomy / Deneb Kaitos (15th century 3rd period) The brightest orange star in the constellation Cetus. Shining on the whale's tail. Meaning "second frog" in Arabic. Fomalhaut in the southern constellation Pisces is the first frog. The name comes from the Arabic word for "southern tail of the sea monster." Discovery Card: 400 Rank: 4, Points: 8, Difficulty: 10, Experience Points: 800 |
| Reward/Advance | |
| Exp/Fame | Experience points: 800 |
| Items Obtained | |
| Chain Quests | |
| Notes | 1.Visibility of the waters off the coast of Zanzibar *Can be found anywhere in the sea *Nights other than stormy weather (cloudy weather possible) *Required: 3rd period of the 15th century *Cultural contribution level 50 *Star map survey "Cetus" survey items |