He′li‐om″e‐ter (?), n. [Helio- + -meter: cf. F. héliomètre.] (Astron.) An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and relative direction of two stars too far apart to be easily measured in the field of view of an ordinary telescope.
Contenido
Derechos y fuentes
Consulta información de fuente, licencia y atribución de este contenido.
Contenido
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.