How to use Coudé in a sentence
Sir David Gill tested the equatorial coude on double stars at the Paris Observatory in 1884, and his last doubts as to the practical value of the instrument were dispelled.
The instrument in some respects resembles the equatorial equatorial coude of Loewy, but instead of two mirrors Camp there is only one.
Thus, as in the equatorial coude, the observer remains in a fixed position looking down the polar tube from above.
The mirrors of Lindemann's equatorial coude reflecting light downwards upon the mirror R would furnish an ideal siderostat for stellar spectroscopy in conjunction with a fixed horizontal telescope.
The observatory grounds were enlarged; two powerful instruments of the novel kind known as coude equatorials were installed; a spectroscopic department was established, and the gigantic task of re-observing all Lalande's stars was completed.Advertisement