Skip to content

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Menu

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Acquiring mission data

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

This is an independent informational project and is not affiliated with, endorsed by, or sponsored by NASA, ESA, JAXA, Roscosmos, CNSA, ISRO, CSA, or any other space agency. Agency names, logos, and other marks are used for identification where permitted by their respective usage policies.

A passion project from the team behind Apex Rental Pro.

Community discussion

Comments 0

No comments yet. The airlock is open.

Sign in or create an account to comment and vote.

ESO 197- G 021 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/ESO 197- G 021

InferredSupermassive

Unified black-hole record

ESO 197- G 021

Cataloged mass estimate

Mass591.637M M☉

Distance268.101M ly

HostESO 197- G 021

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:4136
Canonical name: ESO 197- G 021
Alternate names: None reported
Black-hole type: Supermassive
Status: Inferred
Population: Catalog
Confidence: Cataloged mass estimate
Host galaxy: ESO 197- G 021

Position

Coordinates and distance

Right ascension (RA): 31.13586°
Declination (Dec): -52.17224°
Galactic longitude (l): 279.19745°
Galactic latitude (b): -61.45583°
Distance: 268.101M light-years
Distance error: Not reported by source catalogs
Redshift: 0.02001

Physical profile

Mass, spin, and system

Mass: 591.637M solar masses
Mass error, lower: 295.819M solar masses
Mass error, upper: 295.819M 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: Galaxy luminosity-based black-hole mass estimate
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/A+A/521/A55
Source reference: 2010A&A...521A..55C
Last updated: 2026-08-31T01:34:41.049Z
Source record: Open provider record ↗