the time in which the earth completes one revolution in its orbit round the sun measured with respect to the fixed stars; 365 days, 6h, 9min, and 9.54s of solar time
| 单词 | sidereal year |
| 释义 | sidereal yearnounthe time in which the earth completes one revolution in its orbit round the sun measured with respect to the fixed stars; 365 days, 6h, 9min, and 9.54s of solar time |
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