AB 6

Query : AB 6

Basic data :
AB 6 -- 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: 		Rad (2014ApJS,7C,...), QSO (2011MNRAS,QSO,...), UV (AB,GALEX,...), * (USNO,Gaia), X (RX,1RXS), MIR (WISEA,WISE), Q? (FBQS), G (LEDA), blu (CSO), NIR (2MASS), IR (2MASSI), Opt (SDSS)
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 47 20.7705174816 +32 09 00.672460380 (Optical) [ 0.0821 0.0638 90 ] A 2020yCat.1350....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 44 55.4525900333 +32 25 22.480882293 [ 0.0821 0.0638 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) : 		132.7218379996086 +84.9000683633098 [ 0.0821 0.0638 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 : 		-0.155 0.035 [0.106 0.096 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) 174837 [51] / z(spectroscopic) 0.94895 [0.00017] / cz 284488.1 [51.0]
   (Opt) C 2012ApJS..203...21A
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): 		0.0792 [0.0954] A 2020yCat.1350....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 (11) :
B 17.2 [~] E ~
V 17.54 [~] E 2010A&A...520A.113B
G 17.840500 [0.004834] C 2020yCat.1350....0G
J 16.154 [0.092] C 2010AJ....139.2360S
H 16.052 [0.195] C 2010AJ....139.2360S
K 15.552 [0.184] C 2010AJ....139.2360S
u (AB) 18.224 [0.015] C 2015ApJS..219...12A
g (AB) 17.906 [0.006] B 2015ApJS..219...12A
r (AB) 17.649 [0.006] B 2015ApJS..219...12A
i (AB) 17.650 [0.007] B 2015ApJS..219...12A
z (AB) 17.672 [0.016] C 2015ApJS..219...12A
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 Simbad points in this preview
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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!). sed-help-icon
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 (64) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

7C 124455.2+322519 87GB 124456.4+322503 RGB J1247+321B WK 296
AB 6 ICRF J124720.7+320900 RGB J1247+321C WN B1244.9+3225
B2 1244+32 B IERS B1244+324 RX J1247.3+3208 [BDW2002] q1244+3225
B2.1 1244+32 B IVS B1244+324 RX J1247.3+3209 [BHB98] J124720.7+320901
BWE 1244+3225 KUV 12449+3225 1RXS J124720.9+320904 [CRJ2004] J1247.3+3209
4C 32.41 LEDA 2820252 SDSS J124720.76+320900.7 [HB93] 1244+324
6C 124455+322524 2MASS J12472081+3209004 SDSS J124720.76+320900.6 [HGV2016] J124720.80+320859.3
7C 1244+3225 2MASSI J1247207+320900 TGSSADR J124720.7+320858 [VV2000] J124720.7+320901
7C 124455.39+322522.00 MITG J124720+3209 TIC 165731895 [VV2003] J124720.7+320901
CSO 170 MY 124454.7+320856.2 TXS 1244+324 [VV2006] J124720.7+320901
FBQS J1247+3209 NVSS J124720+320900 USNO-A2.0 1200-06952930 [VV2010] J124720.7+320901
FIRST J124720.8+320900 OHIO N 374 VLSSr J124720.8+320859 [VV96] J124720.7+320901
FIRST J124720.7+320901 10P 56 VLSS J1247.3+3209 [VV98] J124720.7+320901
GALEX J124720.7+320900 QSO B1244+324 WB 1244+3225 [ZEH2003] RX J1247.3+3209 1
GB6 J1247+3208 RGB J1247.3+3209 WISEA J124720.76+320900.5 Gaia DR2 1513682853208011776
GB6 B1244+3225 RGB J1247+321A WISE J124720.76+320900.5 Gaia DR3 1513682853208011776

References (95 between 1850 and 2024) (Total 95)
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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Collections of Measurements


velocities : 11    PLX : 2    PM : 2   

   

Observing logs


ISO : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : AB 6

Link by name to the catalogue in VizieR :

BWE 1244+3225 4C 32.41 FIRST J124720.8+320900 FIRST J124720.7+320901 GALEX J124720.7+320900
IERS B1244+324 2MASS J12472081+3209004 2MASSI J1247207+320900 MITG J124720+3209 NVSS J124720+320900
1RXS J124720.9+320904 SDSS J124720.76+320900.7 SDSS J124720.76+320900.6 USNO-A2.0 1200-06952930 WISEA J124720.76+320900.5
WISE J124720.76+320900.5 WN B1244.9+3225 Gaia DR2 1513682853208011776 Gaia DR3 1513682853208011776

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