IERS B1656+348

Query : IERS B1656+348

Basic data :
6C 165613+344803 -- 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:
UV (), Rad (2014ApJS,6C,...), QSO (2011MNRAS,QSO,...), Bla (2009A&A,[MGL2009],...), * (Lan,Gaia), IR (WISEA,WISE), X (2009A&A,1WGA), Q? (FBQS), AGN (CGRaBS)
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) :
16 58 01.4189020800 +34 43 28.403314166 (Optical) [ 0.0851 0.1150 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) :
16 56 12.2729336344 +34 47 59.885353114 [ 0.0851 0.1150 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) :
057.3896006523076 +37.3823772343855 [ 0.0851 0.1150 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 :
0.242 -0.086 [0.178 0.233 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) 237530 [48] / z(spectroscopic) 1.93767 [0.00016] / cz 580898.9 [48.0]
   (Opt) C 2012ApJS..203...21A
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 (9) :
B 18.27 [~] D 2010A&A...518A..10V
V 18.11 [~] D 2010A&A...518A..10V
R 17.61 [~] D 2008ApJS..175...97H
G 17.8979 [0.0039] C 2018yCat.1345....0G
u (AB) 17.938 [0.011] C 2005AJ....129.1755A
g (AB) 17.959 [0.006] B 2009ApJS..182..543A
r (AB) 17.986 [0.006] B 2009ApJS..182..543A
i (AB) 17.671 [0.007] B 2009ApJS..182..543A
z (AB) 17.597 [0.014] C 2005AJ....129.1755A
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 (48) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

6C 165613+344803 ICRF J165801.4+344328 S4 1656+347 [MGL2009] BZQ J1658+3443
B2 1656+34 IERS B1656+348 S4 1656+34 [MML2015] 5BZQ J1658+3443
B2.3 1656+34 IVS B1656+348 SDSS J165801.42+344328.4 [OCL83] 1656+348
BWE 1656+3448 JVAS J1658+3443 TXS 1656+347 [P82] 1656+347
7C 165612.30+344802.00 JVAS B1656+348 VLSS J1658.0+3443 [VV2000] J165801.5+344329
CGRaBS J1658+3443 Lan 15 WB 1656+3448 [VV2003] J165801.5+344329
CLASS J165801.4232+344328.428 MITG J165802+3443 1WGA J1658.0+3443 [VV2006] J165801.5+344329
FBQS J1658+3443 MITG J165800+3444 WISEA J165801.41+344328.4 [VV2010] J165801.5+344329
FIRST J165801.4+344328 NVSS J165801+344327 WISE J165801.41+344328.4 [VV96] J165801.5+344329
GB2 1656+348 OHIO S 392 WN B1656.2+3448 [VV98] J165801.5+344329
GB6 B1656+3448 QSO B1656+348 [HB93] 1656+348 Gaia DR1 1338723370380059776
87GB 165611.8+344805 RORF 1656+348 [LGF2005] B165612+344801 Gaia DR2 1338723374678379904

References (96 between 1850 and 2022) (Total 96)
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 : 16    PM : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1656+348

Link by name to the catalogue in VizieR :

BWE 1656+3448 FIRST J165801.4+344328 IERS B1656+348 Lan 15 MITG J165802+3443
MITG J165800+3444 NVSS J165801+344327 SDSS J165801.42+344328.4 WISEA J165801.41+344328.4 WISE J165801.41+344328.4
WN B1656.2+3448 Gaia DR1 1338723370380059776 Gaia DR2 1338723374678379904

Search by coordinates in Vizier (radius: 5 arcsec)


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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2021.12.05-07:29:06

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