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3C 390.3

Blazar SIMBAD Bla 1,386 papers

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Right ascension: 18h 42m 08.99s
Declination: +79° 46′ 17.1″
Galactic l, b: 111.44, 27.07
Magnitude V: 15.38
Redshift z: 0.055649
Radial velocity: 16,220 km/s
Proper motion: -0.112, 0.032 mas/yr
Angular size: 0.26′ × 0.218′

Also known as

76 identifiers

1AXG J184202+79461ES 1845+79.71H 1858+7971Jy 1845+791Jy 1845+7971RXS J184209.5+7946132E 1845.6+79432E 41362MASS J18420900+79461712MASX J18420899+79461702MAXI J1842+7972U 1828+812XMM J184208.9+7946173C 390.33CR 390.33U 1825+814C 79.184U 1847+786C 184542+7942438C 1845+797CGPG 1845.5+7943Gaia DR1 2294218353810467072Gaia DR2 2294218358105826432Gaia DR3 2294218358105826432H 1843+797[HB91] 1845+797ICRF J184208.9+794617IERS B1845+797[IN88] 1845+797INTREF 930IRAS 18456+7943IRAS F18456+7943KNOWS J184218+794540LEDA 62274MAXI J1839+798NRAO 582NVSS J184151+794727NVSS J184226+794517PBC J1842.0+7946QSO B1845+7943QSO B1845+796QSO B1845+797QSO B1845+797EQSO J1842+7946RORF 1845+797S5 1845+797SRGA J184209.1+794613SWIFT J1842.0+7945SWIFT J1842.3+7946SWIFT J1842.4+7946TGSSADR J184212.2+794612TIC 288673066VSOP J1842+7946WB 1845+7943WISE J184209.01+794617.1WISEA J184209.00+794617.1WMAP 73WMAP J1840+7946WMAP J1840+7947WMAP J1842+7945WN B1845.6+7943XSS J18408+7947ZW VII 838AKARI-IRC-V1 J1842090+794616[BAG2012] 280.6068+79.7714[BDW2002] q1845+7943[DGT2001] B1845+797[DML87] 710[HSN2016] J280.53+79.77[KRL2007b] 334[VV2000c] J184209.0+794617[VV2003c] J184209.0+794617[VV2006c] J184209.0+794617[VV2010c] J184209.0+794617[VV98c] J184209.0+794617[WTW94] 1845+797

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
[D81b] 3C 390.3 B	Radio	102.7″	—
LEDA 2781136	Galaxy	318.6″	—
ZTF J184224.76+794051.2	EclBin	328.5″	—
BD+79 600	SB*	444.5″	10.8

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/3c-390-3 · Registry entry updated 2026-08-14.