Black hole · ~9 M☉
V404 Cygni
A stellar-mass black hole of about nine solar masses in a binary system in Cygnus, and one of the nearest black holes with a precisely measured distance from radio parallax. Normally quiet, it erupted in a dramatic X-ray and radio outburst in June 2015 — a nearby microquasar caught devouring gas from its companion.
Highlights
- ›A nearby ~9 M☉ black hole; dramatic 2015 outburst
Classes, physics & objects
Knowledge connections
- Associated withStellar-Mass Black Hole
- Associated withBlack Hole
- Associated withAccretion Disk
- Associated withRelativistic Jet
- Associated withCygnus
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.