19 lines
888 B
Markdown
19 lines
888 B
Markdown
---
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title: "Coudé Spectrograph"
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chunk: 1/1
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source: "https://en.wikipedia.org/wiki/Coudé_Spectrograph"
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category: "reference"
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tags: "science, encyclopedia"
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date_saved: "2026-05-05T09:47:14.150442+00:00"
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instance: "kb-cron"
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---
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The Coudé Spectrograph was an instrument attached to the coudé focus of the ESO 1.52-metre telescope (coudé is the French word for elbow). Three cameras equipped with photographic plates as detectors were available. It has two cameras working at f/6 and f/14. Dispersions from 1A/mm to 18a/mm are available with a selection of three gratings, each with ruled areas of 20 x 30 cm.
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The Coudé Spectrograph was installed at the coudé focus of the ESO 1.52-metre telescope at the La Silla Observatory in May 1969. It was decommissioned from the ESO 1.52-metre telescope in mid 1980s.
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== References ==
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== External links ==
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Diagram of a Coudé spectrograph. |