2025年2月11日
The Spider and the Fly
Image Credit & Copyright: Dave Boddington
Explanation: Will the spider ever catch the fly? Not if both are large emission nebulas toward the constellation of the Charioteer (Auriga). The spider-shaped gas cloud in the image center is actually an emission nebula labelled IC 417, while the smaller fly-shaped cloud on the left is dubbed NGC 1931 and is both an emission nebula and a reflection nebula. About 10,000 light-years distant, both nebulas harbor young star clusters. For scale, the more compact NGC 1931 (Fly) is about 10 light-years across. The featured deep image, captured over 20 hours during late January in Berkshire UK, also shows more diffuse and red-glowing interstellar gas and dust.
Explore Your Universe: Random APOD Generator
Tomorrow’s picture: asteroid revolution
蜘蛛及苍蝇
影像提供与版权: Dave Boddington
说明: 蜘蛛最后会追上苍蝇吗？如果此提问所指的，是这二个位于御夫座方向的发射星云，答案是“不会”。这幅影像中心的蜘蛛状云气，其实是编录号为IC 417的发射星云，而其左侧较娇小的苍蝇状星云为NGC 1931，二者其实同时拥有发射星云与反射星云的特征。距离我们约10,000光年的这二个星云，其内皆有年轻的星团。而二者中较紧实的NGC 1931（苍蝇星云）宽约10光年，可作为尺标之用。这幅在今年1月下旬摄于英国 伯克郡的主题深空影像，所使用的总曝光时间超过20小时，视野中还可见到大量泛红较弥漫的星际气体与尘埃。
探索你的宇宙: 随机APOD生成器
明日的图片: asteroid revolution
