The NRAO VLA sky survey (NVSS)

The NVSS covers the sky north $\delta$ = -40$^{\rm o}$ at 1.4 GHz (Condon et al. 1998). It contains almost 2$\times$10⁶ discrete sources stronger than S = 2.5 mJy. We have found two coincidences with FBS objects of unknown nature.