树梢框住的银河系

2021年7月19日

Framed by Trees: A Window to the Galaxy
Image Credit & Copyright: Will Godward

Explanation: The photographer had this shot in mind for some time. He knew that objects overhead are the brightest — since their light is scattered the least by atmospheric air. He also that knew the core of our Milky Way Galaxy was just about straight up near midnight around this time of year in South Australia. Chasing his mental picture, he ventured deep inside the Kuipto Forest where tall radiata pines blocked out much of the sky — but not in this clearing. There, through a window framed by trees, he captured his envisioned combination of local and distant nature. Sixteen exposures of both trees and the Milky Way Galaxy were recorded. Antares is the bright orange star to left of our Galaxy’s central plane, while Alpha Centauri is the bright star just to the right of the image center. The direction toward our Galaxy’s center is below Antares. Although in a few hours the Earth’s rotation moved the Galactic plane up and to the left — soon invisible behind the timber, his mental image was secured forever — and is featured here.

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Tomorrow’s picture: two days early

树梢框住的银河系
影像提供与版权: Will Godward

说明: 摄影者早就想拍这幅影像。他知道头顶的天体最明亮，因为它们的光，会受到最少量的大气之散射。他也知道从澳洲南部看出去，在每年的这段期间的子夜前后，我们银河系的核心会高悬在头顶附近。在脑海预想图的导引下，他深入凯伯托森林，在大片遮天的高耸辐射松里，找到这片空地。在该处由树梢框出的视窗里，他拍下心所想、结合当地与远方自然景观的影像，前后共拍摄了16幅树与银河的照片。影像中，心宿二是我们银河系中央盘面左侧的橙红亮星，影像中心右侧的亮星，是南门二，而银河系的中心就在心宿二的下方。虽然数小时之后，地球自转把银河盘面移到左上方，受到树的遮掩不再得见，不过他的预想图永远留存，就如这幅主题影像所示。

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明日的图片: two days early