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NGC4051 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/NGC4051

ConfirmedSupermassive

Unified black-hole record

NGC4051

Direct black-hole mass measurement

Mass1.259M M☉

Distance32.616M ly

HostNGC4051

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/table2:120
Canonical name: NGC4051
Alternate names: None reported
Black-hole type: Supermassive
Status: Confirmed
Population: Catalog
Confidence: Direct black-hole mass measurement
Host galaxy: NGC4051

Position

Coordinates and distance

Right ascension (RA): 180.79036°
Declination (Dec): 44.53126°
Galactic longitude (l): Not reported by source catalogs
Galactic latitude (b): Not reported by source catalogs
Distance: 32.616M light-years
Distance error: 3.262M light-years
Redshift: Not reported by source catalogs

Physical profile

Mass, spin, and system

Mass: 1.259M solar masses
Mass error, lower: 550.98K solar masses
Mass error, upper: 979.796K 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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