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J0437+2456 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/J0437+2456

ConfirmedSupermassive

Unified black-hole record

J0437+2456

Direct black-hole mass measurement

Also known as 2MASX J04370366+2456067

Mass2.818M M☉

Distance215.263M ly

HostJ0437+2456

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/table2:17
Canonical name: J0437+2456
Alternate names: 2MASX J04370366+2456067
Black-hole type: Supermassive
Status: Confirmed
Population: Catalog
Confidence: Direct black-hole mass measurement
Host galaxy: J0437+2456

Position

Coordinates and distance

Right ascension (RA): 69.26533°
Declination (Dec): 24.93525°
Galactic longitude (l): Not reported by source catalogs
Galactic latitude (b): Not reported by source catalogs
Distance: 215.263M light-years
Distance error: 21.526M light-years
Redshift: Not reported by source catalogs

Physical profile

Mass, spin, and system

Mass: 2.818M solar masses
Mass error, lower: 188.115K solar masses
Mass error, upper: 201.569K 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: Megamaser dynamics
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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