IERS B1204+399

Query : IERS B1204+399

Basic data :
6C 120402+395719 -- 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 (2019ApJS,6C,...), QSO (2011MNRAS,QSO,...), IR (2MASS,2MASSI,...), X (2007AJ,1RXS,...), * (Gaia), AGN (2007AJ), G (2016MNRAS)
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 06 37.0533499621 +39 41 03.747677811 (Optical) [ 0.1149 0.1123 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 04 04.5981721949 +39 57 45.491593184 [ 0.1149 0.1123 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) :
156.6493753587436 +74.3712875708503 [ 0.1149 0.1123 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 :
0.024 -0.042 [0.193 0.256 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) 218064 [81] / z(spectroscopic) 1.51721 [0.00027] / cz 454848.1 [80.9]
   (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):
0.1328 [0.1547] 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 (11) :
B 19.10 [~] D 2010A&A...518A..10V
V 18.71 [~] D 2010A&A...518A..10V
G 18.1105 [0.0048] C 2018yCat.1345....0G
J 16.674 [0.133] C 2010AJ....139.2360S
H 16.363 [0.251] C 2010AJ....139.2360S
K 15.795 [0.202] C 2010AJ....139.2360S
u (AB) 19.050 [0.024] C 2012ApJS..203...21A
g (AB) 18.818 [0.009] B 2009ApJS..182..543A
r (AB) 18.627 [0.009] B 2009ApJS..182..543A
i (AB) 18.366 [0.01] B 2009ApJS..182..543A
z (AB) 18.427 [0.03] C 2009ApJS..182..543A
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!).
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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 (41) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

6C 120402+395719 ICRF J120637.0+394103 SDSS J120637.04+394103.7 [VV2000] J120637.0+394103
B2 1204+39 IERS B1204+399 TIC 21573327 [VV2003] J120637.0+394103
B2.3 1204+39 IVS B1204+399 TXS 1204+399 [VV2006] J120637.0+394103
B3 1204+399 JVAS J1206+396 VCS1 J1206+3941 [VV2010] J120637.0+394103
B3VLA 1204+399 JVAS B1204+399 VIPS J12066+3941 [VV96] J120637.0+394103
BWE 1204+3957 JVAS J1206+3941 WB 1204+3957 [VV98] J120637.0+394103
7C 120404.59+395745.00 2MASS J12063704+3941041 WISEA J120637.07+394103.5 Gaia DR1 4034026523571846144
CLASS J120637.0561+394103.738 2MASSI J1206370+394104 WN B1204.0+3957B Gaia DR2 4034026523571846144
FIRST J120637.0+394104 NVSS J120637+394104 WN B1204.0+3957
GB6 B1204+3957 QSO B1204+399 [HB93] 1204+399
87GB 120403.5+395731 1RXS J120637.1+394118 [R97] NGC 4151 7

References (46 between 1850 and 2021) (Total 46)
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 : 6    PLX : 1    PM : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1204+399

Link by name to the catalogue in VizieR :

BWE 1204+3957 FIRST J120637.0+394104 IERS B1204+399 2MASS J12063704+3941041 2MASSI J1206370+394104
NVSS J120637+394104 1RXS J120637.1+394118 SDSS J120637.04+394103.7 WISEA J120637.07+394103.5 WN B1204.0+3957B
WN B1204.0+3957 Gaia DR1 4034026523571846144 Gaia DR2 4034026523571846144

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2021.09.28-23:54:33

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