You searched for: “spectrohelioscope
spectrohelioscope
An instrument for studying an image of the sun taken at one particular wavelength, instead of the usual mixture of wavelengths of white light.

The spectrohelioscope is a type of scanning spectroscope that enables an image of the sun to be formed by examining the sun in hydrogen light on the sun's surface and in its atmosphere.

This technique makes the arched prominences and solar flares visible which would otherwise not be seen.

This entry is located in the following unit: Astronomy and related astronomical terms (page 24)