日全食

2021年12月09日

A Total Eclipse of the Sun
Image Credit & Copyright: Theo Boris, Christian A. Lockwood, David Zimmerman (JM Pasachoff Antarctic Expedition)
Compositing: Zev Hoover and Ronald Dantowitz (MARS Scientific)

Explanation: Few were able to stand in the Moon’s shadow and watch the December 4 total eclipse of the Sun. Determined by celestial mechanics and not geographical boundaries, the narrow path of totality tracked across planet Earth’s relatively inaccessible southernmost continent. Still, some enthusiastic and well-insulated eclipse chasers were rewarded with the dazzling spectacle in Antarctica’s cold but clear skies. Taken just before the brief totality began, this image from a ground-based telescope inside the edge of the shadow path at Union Glacier catches a glimmer of sunlight near the top of the silhouetted lunar disk. Look closely for the pinkish solar prominences arcing above the Sun’s limb. During totality, the magnificent solar corona, the Sun’s outer atmosphere, made its much anticipated appearance, seen in the composite view streaming far from the Sun’s edge.

Tomorrow’s picture: pixels in space

日全食
影像提供与版权: Theo Boris, Christian A. Lockwood, David Zimmerman (JM Pasachoff Antarctic Expedition)
影像组合: Zev Hoover and Ronald Dantowitz (MARS Scientific)

说明: 只有站在月亮暗影里的极少数人，才能亲眼目睹 10月4日的日全食。而这道狭窄全食带会穿过人烟罕至地球南极洲的决定因素，则是天体力学，而非地理边界。不论如何，在南极洲酷寒清朗的天空下，一群穿着保暖衣物的追日食族，有福见到这例天文奇景。在这张由位在暗影带内联合冰川的望远镜、摄于短暂全食阶段开始前瞬间的影像里，记录了月盘黝黑剪影上缘的一抹阳光。如果细看，不难见到从太阳临边伸出的弧状粉红日珥。在这幅组合影像里，还可见到全食阶段预期会出现的太阳外层大气，从太阳边缘伸展极远的壮观日冕

明日的图片: pixels in space