| Chrono Quest | 17世紀第4期 |
| Offer Method | Celestial Discovery without map |
| Difficulty | 8 |
| Time Limit | none |
| Town | There are no Towns available for offers. |
| Required Skills | Astronomy (8), Visibility (8) |
| Discovery | Astronomy / Alfecca (4th period of the 17th century) The brightest star in the constellation Corus. The name means "something bright in spite of something lacking" in Arabic. Another name, Gemma, means "jewel" in Latin, and it shines like a jewel in the center of the crown. Discovery card: 320 Rank: 4, Points: 6, Difficulty: 8, Experience points: 640 |
| Reward/Advance | |
| Exp/Fame | Experience points: 640 |
| Items Obtained | |
| Chain Quests | |
| Notes | 1.Visibility in the Eastern Mediterranean Sea *Can be found anywhere in the sea *Nights other than stormy weather (cloudy weather possible) *Required: 4th period of the 17th century *Cultural contribution level 40 *Star map survey "Corona constellation" research item |