CDS

3C 446

Query : 3C 446
C.D.S. - SIMBAD4 rel 1.7 - 2020.09.25CEST08:39:19

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations

Basic data :
3C 446 -- BL Lac - type object
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 (Ref,3C,...), QSO (Ref,2013ApJS..206...12D,...), X (Ref,1E,...), Bla (Ref,2016ApJS..224...26M,...), IR (IRAS,2MASS,...), gam (1FGL,2FGL,...), * (EPIC,Gaia), smm (JCMTSE,JCMTSF), AGN (Ref), G (LEDA), cm (AT20G)
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 47.2593030 -04 57 01.390762 (Radio) [ 0.04 0.04 90 ] A 2017ApJS..233....3T
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 11.0822458 -05 12 17.920237 [ 0.04 0.04 90 ]
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) : 		058.9596698251 -48.8427880252 [ 0.04 0.04 90 ]
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 : 		0.00035 0.01097 [0.00125 0.00113 90] ~ 2017ApJS..233....3T
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 18.519 [~] D 2016A&A...595A...1G
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
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within radius 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:

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (75) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

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

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References (763 between 1850 and 2020) (Total 763)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 10    PM : 1   

   

Observing logs


ISO : 60    herschel : 5    IUE : 24   

   

External archives :

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

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

Link by name to the catalogue in VizieR :

3C 446 4C -05.92 2E 4603 IERS B2223-052 IRAS F22231-0512
IRAS 22231-0512 2MASS J22254725-0457013 2MASSI J2225472-045701 NVSS J222547-045701 PKS 2223-052
PKS 2223-05 PKS J2225-0457 PMN J2225-0457 1RXS J222548.9-045703 VSOP J2225-0457
WISE J222547.25-045701.2 WISE J222547.25-045701.3 [DML87] 722 Gaia DR1 2626374700527307136

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2020.09.25-08:39:19

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