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Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

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Circinus | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/Circinus

ConfirmedSupermassive

Unified black-hole record

Circinus

Direct black-hole mass measurement

Also known as NAME Circinus Galaxy · Circinus Galaxy

Mass1.148M M☉

Distance9.132M ly

HostCircinus

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:4929
Canonical name: Circinus
Alternate names: NAME Circinus Galaxy · Circinus Galaxy
Black-hole type: Supermassive
Status: Confirmed
Population: Catalog
Confidence: Direct black-hole mass measurement
Host galaxy: Circinus

Position

Coordinates and distance

Right ascension (RA): 213.29127°
Declination (Dec): -65.33902°
Galactic longitude (l): 311.32601°
Galactic latitude (b): -3.80781°
Distance: 9.132M light-years
Distance error: 1.631M light-years
Redshift: 0.00145

Physical profile

Mass, spin, and system

Mass: 1.148M solar masses
Mass error, lower: 236.143K solar masses
Mass error, upper: 297.286K 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 ↗

Merged source records

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

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