2025年4月23日
An Almost Everything Sky
Image Credit & Copyright: Koen van Barneveld
Explanation: This surprising sky has almost everything. First, slanting down from the upper left and far in the distance is the central band of our Milky Way Galaxy. More modestly, slanting down from the upper right and high in Earth’s atmosphere is a bright meteor. The dim band of light across the central diagonal is zodiacal light: sunlight reflected from dust in the inner Solar System. The green glow on the far right is aurora high in Earth’s atmosphere. The bright zigzagging bright line near the bottom is just a light that was held by the scene-planning astrophotographer. This “almost everything” sky was captured over rocks on Castle Hill, New Zealand late last month. The featured finished frame is a combination of 10 exposures all taken with the same camera and from the same location. But what about the astrophotographer himself? He’s pictured too — can you find him?
Jigsaw Fun: Astronomy Puzzle of the Day
Tomorrow’s picture: open space
几乎无所不包的天空
影像提供与版权: Koen van Barneveld
说明: 在这片令人惊奇的天空里，几乎应有尽有。首先，从左上角斜贯而下、远在天际的是我们银河系的中央盘面。较不显眼的，是从右上方斜掠而下、位于地球大气高处的明亮流星。此外，还有因太阳系内围的尘埃反射阳光，所形成的、对角斜挂的暗淡黄道光。视野右侧的绿色辉光，则是位于地球大气高层的极光。靠近影像底部的那道曲折明亮光迹，其实是来自规划拍摄这片景观的天文摄影者手持的照明灯。这片几乎无所不包的天空，是在上个月底摄于新西兰城堡山（Castle Hill）的巨岩之间。这幅主题影像，是由同一部相机、于同一地点拍摄的10张照片组合而成。策划并拍摄此景的天文摄影者，其实也在视野里，你找得到吗？
拼图乐趣: 每日天文学谜题
明日的图片: open space
