B150 "Seahorse" Dark Nebula
B150 is a dark nebula covering about 1 deg. of field-of-view. Although is it made of dark gases and dust, it is visible because it obscures light from the Milky Way stars behind it. Located 1,200 light-years from Earth, it stretches 20 light-years in length. North is at the top.

Scope/Mount: StellarVue SV70T Refractor with SFFR-70APO Focal-reducer/Field-flattener, Celestron CI-700 Mount
Camera: ZWO ASI1600MMC monochrome with ZWO LRGB filters
Guiding: QHY5L-IIM through Orion Thin OAG, PHD guiding software
Exposure: L (45) 120 sec @ gain=80, RGB: each channel (10) 120 sec @ gain=139
Software: Nebulosity, PhotoShop CS2
Comment: 08-24-2019, Tierra del Sol, CA, good conditions.