V2EX star trail

Star Trail

释义 Definition

star trail星轨;指在长时间曝光的照片中,由于地球自转导致恒星在画面里形成的弧形光迹。常见于夜空摄影/天文摄影语境。(也可泛指夜空中“星星移动的轨迹”的视觉效果。)

发音 Pronunciation (IPA)

/str trel/

例句 Examples

I captured a star trail with a 30-minute exposure.
我用30分钟的长曝光拍到了星轨。

From the mountain peak, the camera recorded a star trail circling the North Star, revealing Earth’s rotation in a single image.
在山顶上,相机记录下围绕北极星旋转的星轨,把地球自转浓缩在一张照片里。

词源 Etymology

star(星星)+ trail(痕迹、尾迹)。在摄影语境中,trail 指“运动留下的光迹/轨迹”,合起来直观表达“星星在长曝光中留下的轨迹”。该用法随着长曝光夜景与天文摄影的普及而更常见。

相关词 Related Words

文学与作品 Literary Works

  • Terence Dickinson《NightWatch》(观星/入门天文经典)中常以“star trails/星轨”解释长曝光下恒星轨迹与地球自转的关系。
  • Thierry Legault《Astrophotography》(天文摄影教程类著作)中“star trail”作为常用术语出现,用于讲解星轨拍摄方法与曝光控制。
  • 《National Geographic》等纪实摄影媒体的夜空摄影专题文章里,“star trail(s)”也经常作为标题或说明用语,用来描述星轨作品与拍摄技术。
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