| 单词 | star tracker |
| 释义 | > as lemmasstar tracker star tracker n. a device which automatically establishes and maintains an orientation relative to a star, used in spacecraft, missiles, space telescopes, etc. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > spacecraft > parts of spacecraft > [noun] > device for maintaining orientation bubble sextant1919 sun-seeker1948 star tracker1949 1949 R. E. Gibson in Jrnl. Amer. Rocket Soc. Sept. 138 Increase in the reliability of free and rate gyros, star trackers, accelerometers, and other means of sensing motion in a frame of co-ordinates. 1962 Aeroplane & Commerc. Aviation News 103 32/1 The main outstanding problem in the provision of such a system is the development of a suitable daylight star-tracker. 1978 Nature 5 Oct. 378/2 The star tracker in the scientific instrument can identify and guide on stars brighter than 14 mag. 2009 N.Y. Times 19 May a17/6 Finishing the replacement of the [Hubble] telescope's batteries and installing a refurbished star tracker. < as lemmas |
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