QSO B1228+077

SIMBAD black-hole candidate classification

Also known as TIC 399057151 · Gaia DR3 3900939750655892864 · [WTW94] 1228+077 · [HB93] 1228+077 · QSO J1231+0725 · KP 18 · 2E 2749 · [KB2007] J123120.6+072552.8 · 2E 1228.8+0741 · KP 1228.7+07.7 · SDSS J123120.55+072552.6 · [SBS92] 1228.7+077 · [VV2000] J123120.6+072553 · [VV2003] J123120.6+072553 · [VV2006] J123120.6+072553 · [VV96] J123120.6+072553 · [VV98] J123120.6+072553 · 2MASS J12312054+0725527 · IERS B1228+077 · GB6 J1231+0725 · [VV2010] J123120.6+072553 · Gaia DR2 3900939750655892864

MassNot reported by source catalogs

DistanceNot reported by source catalogs

HostNot reported by source catalogs

3D model “Blackhole” by rubykamen, licensed under CC BY 4.0.

Catalog record

Identity and classification

ID: simbad:4126113
Canonical name: QSO B1228+077
Alternate names: TIC 399057151 · Gaia DR3 3900939750655892864 · [WTW94] 1228+077 · [HB93] 1228+077 · QSO J1231+0725 · KP 18 · 2E 2749 · [KB2007] J123120.6+072552.8 · 2E 1228.8+0741 · KP 1228.7+07.7 · SDSS J123120.55+072552.6 · [SBS92] 1228.7+077 · [VV2000] J123120.6+072553 · [VV2003] J123120.6+072553 · [VV2006] J123120.6+072553 · [VV96] J123120.6+072553 · [VV98] J123120.6+072553 · 2MASS J12312054+0725527 · IERS B1228+077 · GB6 J1231+0725 · [VV2010] J123120.6+072553 · Gaia DR2 3900939750655892864
Black-hole type: Black-Hole System
Status: Candidate
Population: Catalog
Confidence: SIMBAD black-hole candidate classification
Host galaxy: Not reported by source catalogs

Position

Coordinates and distance

Right ascension (RA): 187.83567406°
Declination (Dec): 7.43128751°
Galactic longitude (l): Not reported by source catalogs
Galactic latitude (b): Not reported by source catalogs
Distance: Not reported by source catalogs
Distance error: Not reported by source catalogs
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: from id [KB2007] J123120.6+072552.8
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: SIMBAD black-hole object types
Source reference: SIMBAD object type BH/BH?
Last updated: 2026-09-12T03:20:07.578Z
Source record: Open provider record ↗

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