spectroheliograph

[ spek-troh-hee-lee-uh-graf, -grahf ]

noun

1. an apparatus for making photographs of the sun with a monochromatic light to show the details of the sun's surface and surroundings as they would appear if the sun emitted only that light.

spectroheliograph

/ -ˌɡræf; ˌspɛktrəʊˈhiːlɪəˌɡrɑːf /

noun

1. an instrument used to obtain an image of the sun in light of a particular wavelength, such as calcium or hydrogen, to show the distribution of the element over the surface and in the solar atmosphere. The image obtained is a spectroheliogram

Derived Forms

• ˌspectroˌhelioˈgraphic, adjective

Other Words From

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

Word History and Origins

Origin of spectroheliograph¹

First recorded in 1890–95; spectro- + heliograph

Word History and Origins

Origin of spectroheliograph¹

C19: from spectro- + helio- + -graph

Example Sentences

He moved to the spectroheliograph, where the zed-ray connections were still humming.

From Project Gutenberg

In the subterranean chamber is the spectroheliograph of exceptional size and power.

From Project Gutenberg