Apex Andromeda · Deep-object catalog

Black Holes

A source-scoped research catalog of measured systems, candidates, mass-qualified quasars, and curated notable black holes—without pretending every estimate has the same evidentiary weight.

Matching records: 7,393
Source groups: 6
Refresh cadence: 24 hours
Hero artwork: Original

Black hole bending a dense field of stars around its event horizon

Catalog scope:

The object catalog combines bounded VizieR mass catalogs, mass-qualified ultramassive SDSS quasars, BlackCAT binaries, SIMBAD BH/BH? classifications, and a sourced notable-object registry. It does not claim that every quasar, active galaxy, ULX, or X-ray binary is a confirmed black hole. Gravitational-wave mergers are maintained as a separate population.

Unified research catalog