Registry · deep sky

4C 57.28

Blazar SIMBAD Bla 77 papers

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Right ascension: 16h 57m 20.71s
Declination: +57° 05′ 53.5″
Galactic l, b: 85.74, 37.86
Magnitude V: 18.28
Redshift z: 1.2766
Radial velocity: 2.0282e+05 km/s
Proper motion: -0.048, 0.178 mas/yr

Also known as

54 identifiers

4C 57.286C 165627+5710307C 165626.50+571028.007C 1656+571087GB 165627.2+5710308C 1656+571BWE 1656+5710CJ2 1656+571CJF B1656+571CLASS J165720.7119+570553.499CRATES J165721+570556FIRST J165720.7+570553Gaia DR1 1433579647257438336Gaia DR2 1433579647257438336Gaia DR3 1433579647257438336GB6 B1656+5710[HB93] 1656+571ICRF J165720.7+570553IERS B1656+571IVS B1656+571JVAS B1656+571JVAS J1657+570JVAS J1657+5705LEDA 2821434MY 165625.0+570548.9NVSS J165720+570554OHIO S 594[P82] 1656+571QSO B1656+571RFC J1657+5705RGB J1657+570RX J1657.3+5705S4 1656+57S4 1656+571SBSG 1656+571SBSS 1656+571TGSSADR J165720.6+570553TXS 1656+571VCS1 J1657+5705VLSS J1657.3+5705VLSSr J165720.6+570554[VV96] J165720.8+570553[VV98] J165720.8+570553WB 1656+5710WISE J165720.71+570553.4WISEA J165720.71+570553.4WN B1656.4+5710[MGL2009] BZQ J1657+5705[MML2015] 5BZQ J1657+5705[PGB2011] J1657+5705[VV2000] J165720.8+570553[VV2003] J165720.8+570553[VV2006] J165720.8+570553[VV2010] J165720.8+570553

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
GB6 J1657+5705	Radio	217.7″	—
HD 238628	Star	255.1″	9.31
HD 153495	**	492.9″	—
UCAC4 737-055771	EmLine*	533.4″	13.11

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/4c-57-28 · Registry entry updated 2026-08-14.