One of my favorite night sky objects is the Rho Ophiuchi molecular cloud complex. It's really an incredible combination of objects that seems to capture almost every interesting aspect of astronomy (except galaxies) in one place. There are emission nebula, reflection nebula, dark nebula, globular clusters, star fields and diffuse background structures all in one place: it's incredible.

This is 205x30s of frames captured between ~1 and 3 a.m. on May 3, 2024 at Cattle Point with my Sigma 105mm at f1.4 and Canon Ra at iso 800. These were unguided frames off a iOptron tracker.

Calibrated with Bias/Flat frames and stacked/processed in Pixinsight.