via Wikipedia: Ophiuchus contains several star clusters, such as IC 4665, NGC 6633, M9, M10, M12, M14, M19, M62, and M107, as well as the nebula IC 4603-4604. M9 is a globular cluster which may have an extra-galactic origin.[39] M10 is a fairly…… Read more “13th constellation: Ophiuchus”