Registry · deep sky

IC 3946

AGN Candidate SIMBAD AG? 77 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 58m 48.73s
Declination: +27° 48′ 37.6″
Galactic l, b: 55.994, 88.23
Magnitude V: 13.85
Redshift z: 0.01974
Radial velocity: 5,859.5 km/s
Angular size: 0.9138′ × 0.4388′

Also known as

30 identifiers

2MASX J12584869+2748368AGC 221244[BO85] Coma 41CAIRNS J125848.85+274836.1[D80] ACO 1656 91ECO 3804Gaia DR2 1460711784596223104Gaia DR3 1460711784594870784GMP 3997GP 655IC 3946LEDA 44508MPMM 171NFP J125848.7+274838SDSS J125848.72+274837.5UZC J125849.0+274836Z 1256.4+2805Z 160-210Z 160-A1[CHM2007] HDC 745 J125848.69+2748368[CHM2007] LDC 926 J125848.69+2748368[CNM2001] 164[CRS93] 57[CRS93] SW 77[DFO95] 215[DFO95] 216[EDG2007] 26[MBC2001] 36111MCG+05-31-050[MHR2010] 194.7030+27.8104

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
CAIRNS J125850.19+274907.2	GtowardsCl	36.27″	18.25
2MASX J12585306+2748479	GtowardsCl	58.43″	15.89
CAIRNS J125852.95+274757.3	GtowardsCl	68.64″	19.11
GMP 3942	Galaxy	80.29″	20.12
SDSS J125844.37+274740.9	Galaxy	80.88″	18.32
2MASX J12585464+2747439	GtowardsCl	94.85″	16.1
CAIRNS J125854.92+274930.5	GtowardsCl	99.48″	18.2
IC 3947	AGN Candidate	101.7″	14.61
CAIRNS J125856.38+274811.5	GtowardsCl	104.3″	17.73
CAIRNS J125847.94+275024.4	GtowardsCl	107.4″	18.39
2MASX J12585660+2749189	AGN	112.5″	16.61

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/ic-3946 · Registry entry updated 2026-08-14.