IERS B1954+513

Query : IERS B1954+513

Basic data :
QSO B1954+513 -- 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,BWE,...), QSO (2005ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), AGN (2020MNRAS,CGRaBS), X (2009A&A,RX), MIR (WISEA,WISE), Bz? ([SRM2005]), * (Gaia), 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) : 		19 55 42.73825546 +51 31 48.5461173 (Radio) [ 0.0335002 0.0345 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) : 		19 54 22.48667669 +51 23 46.3717007 [ 0.0335002 0.0345 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) : 		085.29847679568 +11.75682724517 [ 0.0335002 0.0345 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 : 		-0.150 0.221 [0.122 0.116 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) 198655 [~] / z(spectroscopic) 1.22 [~] / cz 365747 [~]
   (Opt) D 2017ApJS..233....3T
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): 		0.0380 [0.1147] 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 (6) :
V 18.5 [~] E ~
R 17.34 [~] D 2008ApJS..175...97H
G 18.032347 [0.003859] C 2020yCat.1350....0G
J 16.417 [0.121] D 2003yCat.2246....0C
H 15.652 [0.171] D 2003yCat.2246....0C
K 14.978 [0.125] D 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 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 (63) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B1954+513 1Jy 1954+51 TGSSADR J195542.7+513150 [HB93] 1954+513
BWE 1954+5123 MASIV J1955+5131 TIC 416595004 [MGL2009] BZQ J1955+5131
CGRaBS J1955+5131 2MASS J19554274+5131487 TXS 1954+513 [MML2015] 5BZQ J1955+5131
CJ1 1954+513 MY 195423.1+512348.0 VLSSr J195542.0+513148 [PW82] 1954+51
CJF B1954+513 MY 195423.1+513150.2 VLSS J1955.7+5131 [S77] 350
CLASS J195542.7344+513148.545 NEWPS5 J1955+5131 VSOP J1955+5131 [SRM2005] J195542.73+513148.5
CRATES J195542+513154 NVSS J195542+513149 WB 1954+5123 [VV2000] J195542.8+513149
GB6 B1954+5123 OHIO V 591 WISEA J195542.73+513148.5 [VV2003] J195542.8+513149
GB6 J1955+5131 QSO B1954+5123 WISE J195542.73+513148.5 [VV2006] J195542.8+513149
87GB 195421.7+512343 RFC J1955+5131 WMAP J1955+5137 [VV2010] J195542.8+513149
ICRF J195542.7+513148 RGB J1955+515 WMAP 51 [VV96] J195542.8+513149
IERS B1954+513 RGB J1955.7+5131 WMAP J1955+5132 [VV98] J195542.8+513149
IVS B1954+513 RORF 1954+513 WMAP J1955+5139 Gaia DR3 2088894624726289152
JVAS B1954+513 RX J1955.6+5131 WMAP J1955+5133 Gaia DR1 2088894624726289152
JVAS J1955+515 S4 1954+51 WN B1954.3+5123 Gaia DR2 2088894624726289152
1Jy 1954+513 S4 1954+513 WN B1954.3+5123B

References (237 between 1850 and 2024) (Total 237)
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 : 5    PLX : 1    PM : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1954+513

Link by name to the catalogue in VizieR :

BWE 1954+5123 IERS B1954+513 2MASS J19554274+5131487 NVSS J195542+513149 VSOP J1955+5131
WISEA J195542.73+513148.5 WISE J195542.73+513148.5 WMAP J1955+5137 WMAP J1955+5132 WMAP J1955+5139
WMAP J1955+5133 WN B1954.3+5123 WN B1954.3+5123B Gaia DR3 2088894624726289152 Gaia DR1 2088894624726289152
Gaia DR2 2088894624726289152

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