The Ophiucus Molecular Cloud is a rich star forming region featuring the open cluster Collinder 302 , with also other nice DSO in the field of view: Antares, vdB 107, IC 4603, IC 46...
Curious as I am, I always try out new things and push the existing/proven even further. When I saw in the subs of the one-click observation "LDN 1617", what is going on at the edges, I ...