Bernes 149 (also known as GN 16.05.2) is a reflection nebula located in the Lupus 3 dark molecular cloud, a star-forming region situated on the border between the constellations of Lupus and Scorpius. It is part of a larger complex of dark clouds known for active low-mass star formation. The nebula scatters light from nearby young stars, giving it a distinctive blue appearance due to the preferential scattering of shorter wavelengths by interstellar dust. The nebula is illuminated by two bright stars V856 Scorpii (A9V) and V1027 Scorpii (A0/3III). Notable object within the region is Herbig-Haro (HH) object, HH 78.
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