Syuichi Nakano (中野 主一, Nakano Shuichi, born September 11, 1947) is a Japanese astronomer. He specializes in the study of comets, in particular calculating their orbits and making predictions about when periodic comets will return for another perihelion approach. It is considerably more difficult to predict the orbits of comets than of other types of Solar System objects, since their orbits are susceptible not only to perturbations from the planets but also to non-gravitational forces due to the release of gaseous material in the form of a comet's coma and tail.
He publishes the Nakano Notes on comet observations and ephemerides.
| Amateur Achievement Award of Astronomical Society of the Pacific
Kyle E. Smalley
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