The 7C Survey (7C) of radio sources was performed by the Cavendish Astrophysics Group using the Cambridge Low-Frequency Synthesis Telescope at Mullard Radio Astronomy Observatory.

Seventh Cambridge Survey
Map of the Milky Way from the 7C(G) Catalogue in the region 140° to 180° galactic longitude by -5° to 5° galactic latitude
Alternative names7C
Websitewww.mrao.cam.ac.uk/surveys/7C/