QSO B1556+335

Query : QSO B1556+335

Basic data :
QSO B1556+335 -- 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,QSO,...), Rad (BWE,CLASS,...), X (2007AJ,2E,...), Bla (2009A&A,[MGL2009],...), IR (2MASS,2MASSI,...), * (Gaia), Q? (FBQS), AGN (2007AJ)
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) :
15 58 55.1864547958 +33 23 18.607516553 (Optical) [ 0.0483 0.0623 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) :
15 56 59.4496194240 +33 31 47.327193170 [ 0.0483 0.0623 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) :
053.5685049419618 +49.3722718384756 [ 0.0483 0.0623 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 :
-0.142 -0.052 [0.111 0.145 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) 225252 [~] / z(emission) 1.654 [~] / cz 495857 [~]
   (Opt) C 2017AJ....154..114O
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 18.22 [~] D 2010A&A...518A..10V
V 17.79 [~] D 2010A&A...518A..10V
R 17.6 [~] E 2009A&A...495..691M
G 17.1516 [0.0023] C 2018yCat.1345....0G
J 15.513 [0.059] C 2010AJ....139.2360S
H 14.848 [0.080] C 2010AJ....139.2360S
K 14.361 [0.062] C 2010AJ....139.2360S
u (AB) 18.293 [0.015] C 2009ApJS..182..543A
g (AB) 17.655 [0.005] B 2009ApJS..182..543A
r (AB) 17.215 [0.005] B 2009ApJS..182..543A
i (AB) 16.838 [0.005] B 2009ApJS..182..543A
z (AB) 16.732 [0.01] B 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 (44) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B1556+335 IERS B1556+335 SDSS J155855.19+332318.6 [MGL2009] BZQ J1558+3323
BWE 1557+3332 IVS B1556+335 SDSS J155855.18+332318.6 [MML2015] 5BZQ J1558+3323
CLASS J155855.1841+332318.614 KODIAQ J155855+332318 SDSS J155855.18+332318.5 [VV2000] J155855.2+332318
2E 3544 LAMOST J155855.19+332318.6 TIC 310172163 [VV2003] J155855.2+332318
2E 1556.9+3332 2MASS J15585517+3323186 WB 1557+3332 [VV2006] J155855.2+332318
FBQS J1558+3323 2MASSI J1558551+332318 1WGA J1558.9+3323 [VV2010] J155855.2+332318
FIRST J155855.1+332318 MITG J155859+3324 WISEA J155855.18+332318.6 [VV96] J155855.2+332318
GB6 J1558+3323 NVSS J155855+332318 WISE J155855.18+332318.6 [VV98] J155855.2+332318
GB6 B1556+3331 QSO J1558+3323 WN B1556.9+3331 [WTW94] 1556+335
87GB 155659.4+333147 RX J1558.9+3323 [D71] 1556+33 EQ 1556+33
87GB 155700.2+333207 1RXS J155855.5+332323 [HB93] 1556+335 Gaia DR2 1323353507790311296

References (97 between 1850 and 2021) (Total 97)
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 : 11    PM : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : QSO B1556+335

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Annotations :
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2021.10.16-05:35:43

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