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QSO B1640+400A

QSO SIMBAD QSO 20 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: 16h 42m 28.05s
Declination: +39° 58′ 30.3″
Galactic l, b: 63.665, 41.06
Magnitude V: 20.32
Redshift z: 2.531
Radial velocity: 2.5527e+05 km/s
Proper motion: 0.46, -0.003 mas/yr

Also known as

18 identifiers

[A97] J164228.2+395830[CC87] 1640.8+401[CR82] 1640.8+401Gaia DR2 1355796213275095168Gaia DR3 1355796213275095168[HB93] 1640+400AQSO B1640+400QSO B1640+400AQSO B1640.8+4004SDSS J164228.04+395830.2SDSS J164228.04+395830.3[VV96] J164228.2+395830[VV98] J164228.2+395830[CCS88] 1640.8+4004[VV2000] J164228.2+395830[VV2003] J164228.2+395830[VV2006] J164228.2+395830[VV2010] J164228.0+395830

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
QSO B1640+400B	QSO	71.9″	19.62
SDSS J164206.76+395912.8	QSO	248.2″	—
TYC 3074-1350-1	Star	250.4″	11.25
SDSS J164253.03+395652.7	QSO	303.4″	—
UCAC4 650-056551	Star	346.3″	—
V* V448 Her	RRLyrae	366″	13.55
QSO B1640+401	QSO	407.5″	18.05
TYC 3074-1102-1	Star	445.8″	11.74
ClG J1641+4001	ClG	447.9″	—
LEDA 214525	GinPair	456.4″	—
Z 224-92	BrightestCG	472.4″	—

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/qso-b1640-400a · Registry entry updated 2026-08-14.