The Million Quasars (Milliquas) v7.2 Catalogue, now with VLASS associations. The inclusion of SDSS-DR16Q quasars is detailed

Understand

Announcing the release v7.2 of the Milliquas (Million Quasars) catalogue which presents all published quasars to 30 April 2021, including VLASS radio associations for the first time, and concluding the audit of quasars from SDSS-DR16Q and earlier SDSS releases.

• The totals are 829666 classified type-I QSOs/AGN, 703348 quasar candidates of 60%-100% pQSO, plus type-II objects and blazars which bring the total count to 1573824.
• Radio and/or X-ray associations, including probable double radio lobes, are shown for 333638 entries.
• Gaia-DR2 astrometry is given for most objects, as available.