CORONOGRAPH Meaning and
Definition
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A coronograph is an optical instrument used in astronomy to study the outermost regions of the sun's atmosphere, specifically the corona. It is designed to block out the glaring light of the sun's photosphere, allowing for better observation and study of the corona. The instrument consists of a disk or plate called an occulting disk, which is placed at the entrance of the telescope. The occulting disk has a circular or disk-shaped aperture in the center that allows only the light from the corona to pass through. This aperture effectively blocks out the intense brightness of the sun's disk, making it easier to capture detailed images or spectra of the corona.
Coronographs are often used during solar eclipses when the moon partially or fully obscures the sun, as they provide an opportunity to study the corona more closely. They can also be used outside of eclipses by projecting the sun's image onto a screen and placing the coronograph in front of the telescope.
The word "coronograph" is derived from the Latin word "corona," meaning crown or halo, and the Greek word "graphos," meaning written or drawn. Thus, the word coronograph literally means "to write or draw the corona."
Common Misspellings for CORONOGRAPH
- xoronograph
- voronograph
- foronograph
- doronograph
- cironograph
- ckronograph
- clronograph
- cpronograph
- c0ronograph
- c9ronograph
- coeonograph
- codonograph
- cofonograph
- cotonograph
- co5onograph
- co4onograph
- corinograph
- corknograph
- corlnograph
- corpnograph
Etymology of CORONOGRAPH
The word "coronograph" is derived from two root words: "corona" and "graph".
The term "corona" originates from the Latin word "corōna", meaning "crown" or "garland". It was adopted in English to refer to the luminous plasma surrounding the Sun during a total solar eclipse, often appearing as a crown-like shape.
The suffix "-graph" is derived from the Greek word "graphein", meaning "to write" or "to draw". It is commonly used in English to indicate an instrument or device used to record or visualize something.
Therefore, a "coronograph" is a device or instrument designed to observe, record, or photograph the corona of the Sun. It is used in solar astronomy to capture images of the Sun's corona by blocking out its bright central disk, revealing the faint, outer atmosphere.
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