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XTE J1818-245 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/XTE J1818-245

Strong CandidateStellar-Mass Binary

Unified black-hole record

XTE J1818-245

Strong black-hole candidate

MassNot reported by source catalogs

Distance11.579K ly

HostNot reported by source catalogs

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-blackcat:J/ApJS/222/15/table12:58
Canonical name: XTE J1818-245
Alternate names: None reported
Black-hole type: Stellar-Mass Binary
Status: Strong Candidate
Population: Catalog
Confidence: Strong black-hole candidate
Host galaxy: Not reported by source catalogs

Position

Coordinates and distance

Right ascension (RA): 274.60179167°
Declination (Dec): -24.53832222°
Galactic longitude (l): 7.4427°
Galactic latitude (b): -4.1914°
Distance: 11.579K light-years
Distance error: 2.446K light-years
Redshift: Not reported by source catalogs

Physical profile

Mass, spin, and system

Mass: Not reported by source catalogs
Mass error, lower: Not reported by source catalogs
Mass error, upper: Not reported by source catalogs
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: X-ray binary classification
Discovery year: 2005
Discovery observatory: Rx
X-ray properties: WATCHDOG source type: BHC,T,R
Radio properties: Not reported by source catalogs
Gravitational-wave event: Not reported by source catalogs

Provenance

Sources and refresh state

Source catalog: VizieR J/ApJS/222/15 (WATCHDOG/BlackCAT)
Source reference: 2016ApJS..222...15T
Last updated: 2026-08-31T01:34:41.049Z
Source record: Open provider record ↗

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