... Corona --the outermost layer of the Sun's atmosphere, visible to the eye during a total solareclipse; it can also be observed through special filters and best of all, by X-ray cameras aboart satellites. ...
... Solar corona --the outermost layer of the Sun?s atmosphere, visible to the eye during a total solareclipse; it can also be observed through special filters and best of all, by X-ray cameras aboard satellites. ...
... Corona --the outermost layer of the Sun?s atmosphere, visible to the eye during a total solareclipse; it can also be observed through special filters and best of all, by X-ray cameras aboard satellites. ...
... Corona --the outermost layer of the Sun?s atmosphere, visible to the eye during a total solareclipse; it can also be observed through special filters and best of all, by X-ray cameras aboard satellites. ...
... Corona --the outermost layer of the Sun?s atmosphere, visible to the eye during a total solareclipse; it can also be observed through special filters and best of all, by X-ray cameras aboard satellites. ...
... 1869-- Norman Lockyer descubre que una linea espectral amarilla, observada en el espectro solar durante el eclipse de 1868, debe pertenecer a un nuevo elemento, al que luego se denominar Helio . ...
... During a total eclipse of the Sun, when for a few minutes the Moon completely covers the Sun's face, a glow appears around the darkened Sun--the solar corona, the Sun's outermost atmosphere. ...