While the Orion Nebula and belt stars are easy to see with the unaided eye, emission from the extensive interstellar gas is faint and much harder to record, even in telescopic views of the nebula-rich complex.

• 猎户座大星云和腰带星是肉眼即可见的天体，不过广垠的暗淡云气则很难成像，甚至大部份这片云气遍布区域的望远镜影像也是如此。