I've had the opportunity to look at this beautiful, dense open cluster on "moonless" nights. Then it seemed to have a quite diffuse background. This effect was missing now, although I've seen it as a fuzzy, foggy spot even through the finderscope, thanks to its relatively high gross luminosity of around 6.4m. Although it's a splendid view even in moonlight, its real character can be seen only on really dark nights.