But it was bright enough and close enough for astronomers to measure its shift in apparent position as the Earth orbited the Sun.
但它的亮度和距离足以让天文学家测量到它在地球绕太阳运行时的明显位置变化。
| 单词 | Apparent position |
| 释义 |
Apparent position
原声例句
Crash Course 天文篇 But it was bright enough and close enough for astronomers to measure its shift in apparent position as the Earth orbited the Sun. 但它的亮度和距离足以让天文学家测量到它在地球绕太阳运行时的明显位置变化。 VOA慢速英语_世界 The parallax effect describes a difference in the apparent position of an object when it is seen along two different lines of sight. 视差效应描述了当物体沿着两条不同的视线观察时，物体的表观位置的不同。 时间简史（原版） They therefore change their apparent position relative to other stars. 因此，它们改变了相对于其他恒星的表观位置。
英语百科
Apparent placeThe apparent place of an object is the position in space as seen by the observer. Because of physical and/or geometrical effects it has a deviation from the "true position". In astronomy the term "apparent places of stars" means the visual or photographic position of the star, as seen from the moving Earth. For instance, its speed of 30 km per second around the Sun causes an annual aberration of about 20" (10 rad) because the Earth's velocity is about 0.01 percent of the speed of light. |
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