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NGC4748 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/NGC4748

ConfirmedSupermassive

Unified black-hole record

NGC4748

Direct black-hole mass measurement

Also known as NGC 4748

Mass2.291M M☉

Distance204.5M ly

HostNGC4748

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-massive:J/A+A/521/A55/bh:4699
Canonical name: NGC4748
Alternate names: NGC 4748
Black-hole type: Supermassive
Status: Confirmed
Population: Catalog
Confidence: Direct black-hole mass measurement
Host galaxy: NGC4748

Position

Coordinates and distance

Right ascension (RA): 193.05188°
Declination (Dec): -13.41467°
Galactic longitude (l): 303.21986°
Galactic latitude (b): 49.45661°
Distance: 204.5M light-years
Distance error: 20.548M light-years
Redshift: 0.01463

Physical profile

Mass, spin, and system

Mass: 2.291M solar masses
Mass error, lower: 1.032M solar masses
Mass error, upper: 1.878M 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 ↗

Merged source records

VizieR J/A+A/521/A552010A&A...521A..55C
VizieR J/ApJ/831/1342016ApJ...831..134V