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occultation

(Encyclopedia)occultation ŏkˌəltāˈshən [key], in astronomy, eclipse of one celestial body by another, e.g., when the moon lies between a star and the earth. Occultations of stars by the moon are important in ...

astrophysics

(Encyclopedia)astrophysics, application of the theories and methods of physics to the study of stellar structure, stellar evolution, the origin of the solar system, and related problems of cosmology. The distinctio...

eccentricity

(Encyclopedia)eccentricity, in astronomy: see orbit. ...

filament

(Encyclopedia)filament, in astronomy: see chromosphere. ...

granule

(Encyclopedia)granule, in astronomy: see photosphere. ...

twinkling

(Encyclopedia)twinkling, in astronomy: see seeing. ...

Cannon, Annie Jump

(Encyclopedia)Cannon, Annie Jump, 1863–1941, American astronomer, b. Dover, Del. In 1897 she became an assistant in the Harvard College Observatory, where (1911–38) she was astronomer and curator of astronomica...

False Cross

(Encyclopedia)False Cross, in astronomy: see Carina. ...

Xena

(Encyclopedia)Xena, in astronomy: see Eris.

encounter theory

(Encyclopedia)encounter theory, in astronomy, see solar system. ...