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GRS 1915+105 | Black Holes | Apex Andromeda | Apex Andromeda

Black Holes/GRS 1915+105

ConfirmedStellar-Mass Binary

Unified black-hole record

GRS 1915+105

Dynamically confirmed black hole

Also known as V1487 Aql

Mass10.1 M☉

Distance29.354K 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/table12:70
Canonical name: GRS 1915+105
Alternate names: V1487 Aql
Black-hole type: Stellar-Mass Binary
Status: Confirmed
Population: Catalog
Confidence: Dynamically confirmed black hole
Host galaxy: Not reported by source catalogs

Position

Coordinates and distance

Right ascension (RA): 288.798125°
Declination (Dec): 10.94577778°
Galactic longitude (l): 45.3656°
Galactic latitude (b): -0.2194°
Distance: 29.354K light-years
Distance error: 6.523K light-years
Redshift: Not reported by source catalogs

Physical profile

Mass, spin, and system

Mass: 10.1 solar masses
Mass error, lower: 0.6 solar masses
Mass error, upper: 0.6 solar masses
Spin: Not reported by source catalogs
Companion: V1487 Aql
Companion type: K1-5III
Orbital period: 33.833333333333336 days
Inclination: 66°

Evidence

Detection and discovery

Detection method: Dynamical mass measurement in an X-ray binary
Discovery year: 1992
Discovery observatory: G
X-ray properties: WATCHDOG source type: BH,P,R,J,W
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 ↗