31. The mirror finally arrived in 1948, followed by a Cassegrain spectrograph in 1951. 32. The light will be conducted by fiber optics from the telescope to the spectrograph . 33. It is equipped with a 61 cm astrometrical and photometric reflector with a spectrograph . 34. The principle of the icophone is the representation of the sound by a spectrograph . 35. In particular, HD 43587 A was observed with the Keck / HIRES spectrograph . 36. With double axis, would I see two spectrographs overlapping, at right angles? 37. The imager is designed for wide views but the spectrograph has a smaller view. 38. The holes will be stuffed with fiber optics that feed CCD cameras in the spectrographs . 39. To achieve the latter two points, the spectrograph consists of 24 identical image slicer. 40. He invented the feathering spectrograph by using the commonly occurring chromatic aberration to his advantage.
