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°
Fear of crossing streets traumatic event. Sometimes this behavior may be misinterpreted during PTSD symptom assessment as a caution (i.e., a normal learning behavior) rather than fear (which is an abnormal avoidant behavior). Fear of crossing streets may also result from an anticipatory anxiety related to person's limited mobility due to stiff person syndrome (SPS). In fact a person with SPS crossing a street may develop attacks of increasing stiffness or spasms. Dromophobia may be present in people, especially children, with autism, since crossing a road involves complex skills, such as judging the speed of an approaching car. Fear of crossing streets The fear