A filtergram is a photograph of the sun's surface made
A) in a band of wavelengths in the infrared.
B) in a band of wavelengths in the ultraviolet.
C) using the Zeeman Effect.
D) with only those photons emitted in a specific spectral line.
E) none of the above

Question

Quizplus · Accepted Answer

A filtergram is a photograph taken using a filter that isolates a specific spectral line, allowing observation of features like sunspots and solar flares in that particular wavelength.

A Filtergram Is a Photograph of the Sun's Surface Made