The Westerbork Northern Sky Survey survey collection

Resampled in Healpix by CDS. The Westerbork Northern Sky Survey (WENSS) is a low-frequency radio survey, designed to cover the whole sky north of declination 30deg at a wavelength of 92 cm (325 MHz), and about a quarter of this region, concentrated at high galactic latitudes, at a wavelength of 49 cm (609 MHz), to a limiting flux density of approximately 18 mJy and 15 mJy respectively.

Observations for WENSS were carried out with the WSRT (The Westerbork Synthesis Radio Telescope) in a standard set-up.Original acknowledgement for data: We have made use of the WSRT on the Web Archive. The Westerbork Synthesis Radio Telescope is operated by the Netherlands Institute for Radio Astronomy ASTRON, with support of NWO