spectrohelioscope

[ spek-troh-hee-lee-uh-skohp ]

noun

1. a spectroheliograph.
2. a similar instrument, used for visual instead of photographic observations.

spectrohelioscope

/ ˌspɛktrəʊˈhiːlɪəʊˌskəʊp; ˌspɛktrəʊˌhiːlɪəʊˈskɒpɪk /

noun

1. an instrument, similar to the spectroheliograph, used for observing solar radiation at one particular wavelength

Derived Forms

• spectrohelioscopic, adjective

Other Words From

• spec·tro·he·li·o·scop·ic [spek-troh-hee-lee-, uh, -, skop, -ik], adjective

Word History and Origins

Origin of spectrohelioscope¹

First recorded in 1925–30; spectro- + helio- + -scope

Example Sentences

Astronomer Lucien d'Azambuja of the Paris Observatory at Meudon peered at solar photographs made with his powerful spectrohelioscope, found flaring "prominences'" shooting out 90,000 to 180,000 miles from the surface.

From Time Magazine Archive

Dr. I. M. Levitt of Franklin Institute comes out every day to make solar observations on the Cook spectrohelioscope.

From Time Magazine Archive