2025年5月27日
Zeta and Rho Ophiuchi with Milky Way
Image Credit & Copyright: Ireneusz Nowak
Explanation: Behold one of the most photogenic regions of the night sky, captured impressively. Featured, the band of our Milky Way Galaxy runs diagonally along the bottom-left corner, while the colorful Rho Ophiuchi cloud complex is visible just right of center and the large red circular Zeta Ophiuchi Nebula appears near the top. In general, red emanates from nebulas glowing in the light of excited hydrogen gas, while blue marks interstellar dust preferentially reflecting the light of bright young stars. Thick dust usually appears dark brown. Many iconic objects of the night sky appear, including (can you find them?) the bright star Antares, the globular star cluster M4, and the Blue Horsehead nebula. This wide field composite, taken over 17 hours, was captured from South Africa last June.
Explore Your Universe: Random APOD Generator
Tomorrow’s picture: powerful space jet
天市右垣十一星云、心宿增四星云与银河
影像提供与版权: Ireneusz Nowak
说明: 请透过这幅精采的主题影像，观赏夜空最美丽的区域之一。在影像里，银河系的中央盘面斜贯过左下角落，色彩缤纷的心宿增四星云复合体位于中右方，而庞大环状的天市右垣十一星云，则高悬在顶缘附近。一般而言，星云红色的辉光，来自激发态氢气所发出的光，而泛蓝的星际尘埃，则是尘埃高效率反射年轻亮星之星光所致。其实，厚实的尘埃通常是暗棕色的。此外，许多标志性的夜空天体也现踪于这幅影像里，其中包括亮星心宿二（找到了吗？）、球状星团M4、及蓝马头星云。这幅总曝光时间超过17小时的广视野组合影像，是在去年6月摄于南非。
探索你的宇宙: 随机APOD生成器
明日的图片: powerful space jet
