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3C390.3 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/3C390.3

ConfirmedSupermassive

Unified black-hole record

3C390.3

Direct black-hole mass measurement

Mass416.869M M☉

Distance783.754M ly

Host3C390.3

Drag to orbitScroll to zoomEmbedded animation playing

3D model “Blackhole” by rubykamen, licensed under CC BY 4.0.

Catalog record

Identity and classification

ID: vizier-direct:J/ApJ/831/134/table2:2
Canonical name: 3C390.3
Alternate names: None reported
Black-hole type: Supermassive
Status: Confirmed
Population: Catalog
Confidence: Direct black-hole mass measurement
Host galaxy: 3C390.3

Position

Coordinates and distance

Right ascension (RA): 280.53746°
Declination (Dec): 79.77142°
Galactic longitude (l): Not reported by source catalogs
Galactic latitude (b): Not reported by source catalogs
Distance: 783.754M light-years
Distance error: 78.278M light-years
Redshift: Not reported by source catalogs

Physical profile

Mass, spin, and system

Mass: 416.869M solar masses
Mass error, lower: 128.466M solar masses
Mass error, upper: 185.69M solar masses
Spin: Not reported by source catalogs
Companion: Not reported by source catalogs
Companion type: Not reported by source catalogs
Orbital period: Not reported by source catalogs
Inclination: Not reported by source catalogs

Evidence

Detection and discovery

Detection method: Reverberation mapping
Discovery year: Not reported by source catalogs
Discovery observatory: Not reported by source catalogs
X-ray properties: Not reported by source catalogs
Radio properties: Not reported by source catalogs
Gravitational-wave event: Not reported by source catalogs

Provenance

Sources and refresh state

Source catalog: VizieR J/ApJ/831/134
Source reference: 2016ApJ...831..134V
Last updated: 2026-08-31T01:34:41.049Z
Source record: Open provider record ↗

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