Trojan (celestial body) whatever the planet and trojan masses. And if = , then both must exceed 13+√168 ≈ 25.9615. But all this assumes a three-body system: once other bodies are introduced, even if distant and small, stability of the system requires larger ratios. Trojan (celestial body) In astronomy, a trojan is a minor planet or moon that shares the orbit of a planet or larger moon, wherein the trojan remains in the same, stable position relative to the larger object. In particular, a trojan remains near one of the two trojan points of stability – designated and – which lie approximately 60°
Zisa (goddess) Zisa (goddess) Zisa or Cisa is a goddess in Germanic paganism. "Zisa" is an etymological double of Tyr or Ziu according to 19th century scholar Jacob Grimm who suggests that Zisa may be the same figure as Tyr's unnamed wife, mentioned by Loki in the 13th century Poetic Edda poem "Lokasenna". Zisa is mentioned in manuscripts from the 12th to 14th centuries which reference a victory against the Roman Empire attributed to the goddess. The anniversary of this victory was celebrated on the festival day of September 28 and involved games and merrymaking. Scholar Stephan Grundy, and authors Nigel Pennick