(Encyclopedia) Rogge, JacquesRogge, Jacqueszhäk rōˈkhə [key], 1942–, Belgian sports executive, b. Ghent. An orthopedic surgeon with a degree in sports medicine, Rogge is an accomplished sailor who…
(Encyclopedia) satellite, natural, celestial body orbiting a planet, dwarf planet, asteroid, or star of a larger size. The most familiar natural satellite is the earth's moon; thus, satellites of…
(Encyclopedia) Cyrano de Bergerac, SavinienCyrano de Bergerac, SaviniensävēnyăNˈ sēränōˈ də bĕrzhəräkˈ [key], 1619–55, French novelist. Satirizing the customs and beliefs of his time, he wrote two…
(Encyclopedia) node, in astronomy, point at which the orbit of a body crosses a reference plane. One reference plane that is often used is the plane of the earth's orbit around the sun (ecliptic).…
(Encyclopedia) synodic periodsynodic periodsĭnŏdˈĭk [key], in astronomy, length of time during which a body in the solar system makes one orbit of the sun relative to the earth, i.e., returns to the…
(Encyclopedia) halo, in meteorology, short-lived circles or arcs, and less commonly spikes and crosses, of colored or whitish light surrounding the moon or sun or in clouds as seen from above. A halo…
