Trojan (celestial body) 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° ahead of and behind the larger body, respectively. Trojan points make up two of five types of Lagrangian points, and a trojan is a type of Lagrangian object. They are one type of co-orbital object. In this arrangement, the massive star
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