3C 446

Basic data :
3C 446 -- BL Lac Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: BLL (), Rad (2014ApJS,3C,...), QSO (2011RAA,KODIAQ,...), X (2009A&A,1E,...), Bla (2009A&A,[DGT2001],...), gam (1FGL,2FGL,...), IR (IRAS,2MASSI,...), AGN (2011ApJ), * (EPIC,Gaia), smm (JCMTSE,JCMTSF), MIR (WISEA,WISE), Q? (2021MNRAS), AG? (2022ApJS), G (LEDA), cm (AT20G), NIR (2MASS) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 22 25 47.25929101 -04 57 01.3907626 (Radio) [ 0.0304069 0.0307 0 ] A 2020A&A...644A.159C Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 22 23 11.08323895 -05 12 17.8989800 [ 0.0304069 0.0307 0 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 058.95967941748 -48.84278861274 [ 0.0304069 0.0307 0 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : 0.128 -0.077 [0.238 0.214 90] A 2020yCat.1350....0G Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) 211348 [~] / z(emission) 1.404 [~] / cz 420909 [~]    (Opt) C 2017AJ....154..114O Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z (System) : may be AB (default is Vega) flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (7) : B 18.83 [~] D 2010A&A...518A..10V V 18.39 [~] D 2010A&A...518A..10V R 16.3 [~] E 2009A&A...495..691M G 18.386106 [0.014192] C 2020yCat.1350....0G J 15.549 [0.039] C 2003yCat.2246....0C H 14.596 [0.041] C 2003yCat.2246....0C K 13.609 [0.039] C 2003yCat.2246....0C	SIMBAD within arcmin ', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

3C 446	1Jy 2223-05	QSO B2223-0512	[BDW2002] q2223-0512
AT20G J222547-045701	1Jy 2223-052	RFC J2225-0457	[DGT2001] B2223-052
4C -05.92	KODIAQ J222547-045701	RORF 2223-052	[DML87] 722
CRATES J222546-045700	LEDA 2817740	RX J2225.8-0457	[GGR94] 2223-052
Cul 2223-052	LHE 519	1RXS J222548.9-045703	[HB93] 2223-052A
1E 2223.1-0512	2MASS J22254725-0457013	SPASS J222548-045713	[IN88] 2223-052
2E 2223.1-0512	2MASSI J2225472-045701	SQUAD DR1 J222547-045701	[MGL2009] BZQ J2225-0457
2E 4603	MRC 2223-052	TGSSADR J222547.2-045702	[MML2015] 5BZQ J2225-0457
EPIC 206496452	MSH 22-0-10	TIC 176009268	[S77] 375
1ES 2223-05.1	NRAO 687	TXS 2223-052	[VV2000] J222547.2-045701
1FGL J2225.8-0457	NVSS J222547-045701	UT 2223-052	[VV2003] J222547.2-045701
2FGL J2225.6-0454	OHIO Y -039	VLSSr J222547.4-045702	[VV2006] J222547.2-045701
3FGL J2225.8-0454	PCCS2 143 G058.95-48.84	VLSS J2225.7-0457	[VV2010] J222547.2-045701
4FGL J2225.7-0457	PKS 2223-052	VSOP J2225-0457	[VV96] J222547.2-045701
FIRST J222547.2-045701	PKS 2223-05	WB 2223-0512	[VV98] J222547.2-045701
GLEAM J222547-045657	PKS J2225-0457	WISEA J222547.25-045701.3	[VYP98] 2223-052
GRA B2224-05	PMN J2225-0457	WISE J222547.25-045701.2	[WCO2009] J222542-045756
ICRF J222547.2-045701	PSCz Q22231-0512	WISE J222547.25-045701.3	[WTW94] 2223-052
IERS B2223-052	QSO J2225-0456	WMAP 29	Gaia DR2 2626374700527307136
IRAS F22231-0512	QSO B2223-052	WMAP J2225-0456	Gaia DR3 2626374700527307136
IRAS 22231-0512	QSO B2223-051	WMAP J2225-0455	Gaia DR1 2626374700527307136
JCMTSE J222547.1-045702	QSO J2225-0457	WMAP J2225-0457
JCMTSF J222547.1-045702	QSO B2223-05E	XMMSL1 J222547.2-045701

References (830 between 1850 and 2024) (Total 830) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 3C 446

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