| 单词 |
hubble deep field |
| 释义 |
Hubble Deep Field
Hubble Deep Fieldn. An image taken by the Hubble Space Telescope of a small area of sky located in the constellation Ursa Major and chosen because it contains few obstacles that interfere with deep-space imaging. The long exposure time used enabled imaging of distant galaxies as they appeared very early in the history of the universe.Hubble deep field
Hubble deep field An undistinguished – and therefore considered ‘typical’ – area of sky that was the subject of an extremely long observation taken with the Hubble Space Telescope. The resulting image has enabled astonomers to study the ordinary galaxies at the edge of the Universe.AcronymsSeeHDF |
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