coronagraphn.

Brit.

/kəˈrəʊnəɡrɑːf/,

/kəˈrəʊnəɡraf/, U.S.

/kəˈroʊnəˌɡræf/

Forms: originally corono-.

Etymology: < corono-, combining form of corona n.¹, but modified to corona- under its influence + -graph comb. form, Greek -γραϕος writing, writer.

Astronomy.

An instrument for photographing the sun's corona in full sunlight; also, a telescope for observing the sun's corona. The photographic instrument is a combined form of Newtonian telescope and photographic camera, suggested by Dr. W. Huggins in a paper read before the Royal Society in 1882.

ΘΚΠ

the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [noun] > sun

helioscope1675

heliostat1747

photoheliograph1862

photohelioscope1864

coronagraph1885

spectroheliograph1892

spectrohelioscope1906

spectroheliometer1973

1885 H. Grubb Catal. Philos. Instr. Dr. Huggins' Coronograph for photographing Corona.

1890 Philos. Trans. 1889 (Royal Soc.) A. 180 306 The Coronagraph was designed as the instrument which would give the best chance of rendering it possible to obtain photographs of the corona in sunlight.

1927 Pop. Astronomy XXXV. 267 The accurate adjustment of stationary coronagraphs with despatch.

1956 H. S. Jones in A. Pryce-Jones New Outl. Mod. Knowl. 122 A special instrument called a coronagraph is used in which the direct light of the Sun is obscured by a disk, an artificial eclipse thereby being produced.

1970 Nature 20 June 1139/2 The line intensity has to be observed to much larger distances than can be reached with coronagraphs.

Derivatives

coˌronaˈgraphic adj.

ΘΚΠ

the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [adjective] > sun

coronagraphic1890

1890 Tablet 25 Jan. 128 The special new coronagraphic instrument prepared for the occasion.

1955 Sci. Amer. Feb. 24/3 I..went hard to work on the coronagraphic project.

1970 Nature 20 June 1139/2 The coronagraphic method is restricted to the relatively bright innermost corona.

Categories »

coˈronogram n. a photograph of the corona so obtained.

This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022).

单词	coronagraph
释义	coronagraphn. Brit. /kəˈrəʊnəɡrɑːf/, /kəˈrəʊnəɡraf/, U.S. /kəˈroʊnəˌɡræf/ Forms: originally corono-. Etymology: < corono-, combining form of corona n.¹, but modified to corona- under its influence + -graph comb. form, Greek -γραϕος writing, writer. Astronomy. An instrument for photographing the sun's corona in full sunlight; also, a telescope for observing the sun's corona. The photographic instrument is a combined form of Newtonian telescope and photographic camera, suggested by Dr. W. Huggins in a paper read before the Royal Society in 1882. ΘΚΠ the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [noun] > sun helioscope1675 heliostat1747 photoheliograph1862 photohelioscope1864 coronagraph1885 spectroheliograph1892 spectrohelioscope1906 spectroheliometer1973 1885 H. Grubb Catal. Philos. Instr. Dr. Huggins' Coronograph for photographing Corona. 1890 Philos. Trans. 1889 (Royal Soc.) A. 180 306 The Coronagraph was designed as the instrument which would give the best chance of rendering it possible to obtain photographs of the corona in sunlight. 1927 Pop. Astronomy XXXV. 267 The accurate adjustment of stationary coronagraphs with despatch. 1956 H. S. Jones in A. Pryce-Jones New Outl. Mod. Knowl. 122 A special instrument called a coronagraph is used in which the direct light of the Sun is obscured by a disk, an artificial eclipse thereby being produced. 1970 Nature 20 June 1139/2 The line intensity has to be observed to much larger distances than can be reached with coronagraphs. Derivatives coˌronaˈgraphic adj. ΘΚΠ the world > the universe > cosmology > science of observation > astronomical instruments > observational instruments > [adjective] > sun coronagraphic1890 1890 Tablet 25 Jan. 128 The special new coronagraphic instrument prepared for the occasion. 1955 Sci. Amer. Feb. 24/3 I..went hard to work on the coronagraphic project. 1970 Nature 20 June 1139/2 The coronagraphic method is restricted to the relatively bright innermost corona. Categories » coˈronogram n. a photograph of the corona so obtained. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2022). < n.1885
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