4C -02.55

Query : 4C -02.55
C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET08:41:15

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


Basic data :
4C -02.55 -- Quasar
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:
QSO (2011MNRAS,KODIAQ,...), Rad (2014ApJS,4C,...), gam (2EG,3EG,...), X (2007AJ,2E,...), Bla (2009A&A,[MGL2009],...), IR (2MASS,2MASSI,...), * (USNO,Gaia), DLA ([DRT2000],[RNT2003]), ALS ([RT2000]), Bz? (2017A&A), AGN (2007AJ), G (LEDA), cm (AT20G), UV (GALEX)
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) :
12 32 00.0157879377 -02 24 04.790684994 (Optical) [ 0.0683 0.0480 90 ] A 2018yCat.1345....0G
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) :
12 29 25.9047182598 -02 07 31.528181449 [ 0.0683 0.0480 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) :
293.1562049813808 +60.1009628640607 [ 0.0683 0.0480 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 :
0.215 -0.233 [0.176 0.112 90] A 2018yCat.1345....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) 183905 [~] / z(emission) 1.043 [~] / cz 312684 [~]
   (Opt) C 2017AJ....154..114O
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
0.0400 [0.0802] A 2018yCat.1345....0G
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 (12) :
B 17.41 [~] D 2010A&A...518A..10V
V 17.06 [~] D 2010A&A...518A..10V
R 16.4 [~] E 2009A&A...495..691M
G 16.6904 [0.0041] C 2018yCat.1345....0G
J 15.507 [0.067] C 2010AJ....139.2360S
H 15.389 [0.104] C 2010AJ....139.2360S
K 14.577 [0.111] C 2010AJ....139.2360S
u (AB) 17.422 [0.009] B 2009yCat.2294....0A
g (AB) 17.120 [0.005] B 2009yCat.2294....0A
r (AB) 16.785 [0.005] B 2009yCat.2294....0A
i (AB) 16.795 [0.005] B 2009yCat.2294....0A
z (AB) 16.812 [0.011] C 2005AJ....129.1755A
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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 (67) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

4C -02.55 KODIAQ J123200-022404 1RXS J123201.4-022431 [MGL2009] BZQ J1232-0224
AT20G J123159-022404 LBQS 1229-0207 SDSS J123200.01-022404.7 [MML2015] 5BZQ J1232-0224
Cul 1229-021 LEDA 2818116 SWIFT J122819.5-031813 [RNT2003] QSO J1232-0224 abs 0.395
2E 2757 2MASS J12320001-0224047 TXS 1229-021 [RT2000] QSO J1232-0224 abs 0.7571
2E 1229.4-0207 2MASSI J1232000-022404 USNO-A2.0 0825-07765227 [RT2000] QSO J1232-0224 abs 0.395
2EG J1230-0254 MRC 1229-021 VCS1 J1232-0224 [S77] 208
3EG J1230-0247 NAME BZQ J1236+0224 VLSS J1232.0-0224 [VV2000] J123200.0-022405
EGRc J1233-0318 NVSS J123200-022404 VSOP J1232-0224 [VV2003] J123200.0-022405
3FGL J1228.4-0317 OHIO N -049 VSOP J1231-0224 [VV2006] J123200.0-022405
FIRST J123159.9-022405 PKS 1229-021 WB 1229-0207 [VV2010] J123200.0-022405
GALEX 2697878325446053367 PKS J1232-0224 WISEA J123200.01-022404.7 [VV96] J123200.0-022405
GRA B1228-02 PKS 1229-02 WISE J123200.01-022404.7 [VV98] J123200.0-022405
ICRF J123200.0-022404 PKS 1229-020 [BDW2002] q1229-0207 [WTW94] 1229-021
INTREF 504 PMN J1231-0224 [CMG2008] 186.88-2.23 EQS B1229-0207
IVS B1229-021 QSO B1229-0207 [DRT2000] QSO J1232-0224 abs 0.3953 Gaia DR1 3693710872868290432
1Jy 1229-021 QSO J1232-0224 [GW2008] CoNFIG 140 Gaia DR2 3693710877159936896
1Jy 1229-02 QSO B1229-021 [HB93] 1229-021

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References (385 between 1850 and 2021) (Total 385)
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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Collections of Measurements


velocities : 20    PM : 1    PLX : 1   

   

Observing logs


ISO : 3    IUE : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 4C -02.55

Link by name to the catalogue in VizieR :

4C -02.55 2E 2757 3EG J1230-0247 FIRST J123159.9-022405 LBQS 1229-0207
2MASS J12320001-0224047 2MASSI J1232000-022404 NVSS J123200-022404 PKS 1229-021 PKS J1232-0224
PKS 1229-02 PKS 1229-020 PMN J1231-0224 1RXS J123201.4-022431 SDSS J123200.01-022404.7
USNO-A2.0 0825-07765227 VSOP J1232-0224 VSOP J1231-0224 WISEA J123200.01-022404.7 WISE J123200.01-022404.7
Gaia DR1 3693710872868290432 Gaia DR2 3693710877159936896

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Annotations :
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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2020.12.02-08:41:15

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