Locating the “horsehead” nebula in visual observation
It is one of the most famous objects, highly prized by astrophotographers, yet very difficult to detect and appreciate visually. And for good reason: it is a dark nebula, a…
It is one of the most famous objects, highly prized by astrophotographers, yet very difficult to detect and appreciate visually. And for good reason: it is a dark nebula, a…