| 单词 | meteor spectrograph |
| 释义 | > as lemmasmeteor spectrograph meteor spectrograph n. Astronomy an instrument for recording the spectra of meteors. ΚΠ 1873 A. S. Herschel in Nature 25 Dec. 142/2 It may interest observers of shooting stars who attempt to obtain views of their spectra by the use of suitably adapted meteor-spectroscopes to indicate a peculiarity which seems to distinguish the larger meteors of the December star-showers.] 1933 P. M. Millman in Bull. Harvard Coll. Observatory No. 891. 6 Three meteor spectrographs have been in continual use since March 1, 1932 at Flagstaff, Arizona, where exposures with these instruments have been made by Dr. S. C. Boothroyd and Mr. D. Hargrave. 1983 V. A. Bronshten Physics of Meteoric Phenomena iv. 139 During the last 20 years, the dispersions of meteor spectrographs have become greater. Consequently, the continuous spectra of meteors can now almost always be identified as superimposed systems of molecular bands. < as lemmas |
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