Registry · deep sky

2MASS J12054400+4918197

Seyfert1 SIMBAD Sy1 8 papers

harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.

Right ascension: 12h 05m 44.02s
Declination: +49° 18′ 20.2″
Galactic l, b: 141.55, 66.14
Magnitude V: 19.32
Parallax: 0.6408 mas
Redshift z: 0.21572
Radial velocity: 57,827 km/s
Proper motion: 0.146, 0.098 mas/yr

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
SDSS J120538.34+491753.3	QSO	61.64″	—
2MASS J12053387+4917334	Seyfert1	109.7″	18.04
SDSS J120551.64+491619.0	QSO	142.3″	—
SDSS J120529.39+491921.0	QSO	155.4″	—
SDSS J120544.45+491247.7	QSO	332.4″	—
SLACS SDSS J1205+4910	GravLensSystem	472.3″	—
SLACS SDSS J1205+4910 source	LensedG	472.3″	—
FIRST J120540.4+491029	RadioG	472.3″	17.7
SDSS J120632.75+491421.7	QSO	533.4″	—

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/2mass-j12054400-4918197 · Registry entry updated 2026-08-14.