QSO B0454-810

Query : QSO B0454-810

Basic data :
QSO B0454-810 -- 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,CRATES,...), QSO (2008MNRAS,QSO,...), AGN (CGRaBS,[VV2000c],...), Bla (2009A&A,[MGL2009],...), cm (AT20G,ATPMN), MIR (WISEA,WISE), G (LEDA), * (Gaia), X (2009A&A), 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) : 		04 50 05.44021015 -81 01 02.2314265 (Radio) [ 0.0327728 0.0328 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) : 		04 54 18.01335209 -81 05 54.6613014 [ 0.0327728 0.0328 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) : 		293.85100512301 -31.37099138333 [ 0.0327728 0.0328 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 : 		0.120 0.028 [0.231 0.289 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) 104717 [~] / z(spectroscopic) 0.44 [~] / cz 131909 [~]
   (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): 		0.1323 [0.1931] 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 (6) :
B 19.31 [~] D 2008MNRAS.384..775M
V 19.2 [~] E ~
R 18.30 [~] D 2008ApJS..175...97H
G 19.166983 [0.023519] C 2020yCat.1350....0G
H 15.976 [0.204] D 2003yCat.2246....0C
K 15.010 [0.148] 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 (47) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B0454-810 LEDA 2824158 TIC 260892486 [MGL2009] BZQ J0450-8101
AT20G J045005.4-810102 2MASS J04500545-8101021 VSOP J0450-8101 [MML2015] 5BZQ J0450-8101
AT20G J045005-810102 MRC 0454-810 VSOP J0450-8100 [VV2000c] J045004.9-810102
ATPMN J045005.4-810102 PCCS2 143 G293.83-31.37 WISEA J045005.40-810102.3 [VV2003c] J045004.9-810102
CGRaBS J0450-8101 PKS J0450-8101 WISE J045005.40-810102.3 [VV2006c] J045004.9-810102
CRATES J045008-810057 PKS J0450-8100 WMAP 175 [VV2010c] J045004.9-810102
ICRF J045005.4-810102 PKS 0454-81 WMAP J0449-8100 [VV96] J045004.9-810102
IERS B0454-810 PKS 0454-810 WMAP J0450-8100 [VV98] J045004.9-810102
IVS B0454-810 PMN J0450-8100 WMAP J0449-8059 Gaia DR3 4622028063454680192
1Jy 0454-810 RORF 0454-810 WMAP J0450-8104 Gaia DR1 4622028059160745472
1Jy 0454-81 SUMSS J045005-810103 [HB93] 0454-810 Gaia DR2 4622028063454680192
LCS2 J0450-8101 SUMSS J045004-810103 [MEM2008] 61

References (119 between 1850 and 2024) (Total 119)
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 : 1    PLX : 2    PM : 3   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : QSO B0454-810

Link by name to the catalogue in VizieR :

IERS B0454-810 2MASS J04500545-8101021 PKS J0450-8101 PKS J0450-8100 PKS 0454-81
PKS 0454-810 PMN J0450-8100 SUMSS J045005-810103 SUMSS J045004-810103 VSOP J0450-8101
VSOP J0450-8100 WISEA J045005.40-810102.3 WISE J045005.40-810102.3 WMAP J0449-8100 WMAP J0450-8100
WMAP J0449-8059 WMAP J0450-8104 Gaia DR3 4622028063454680192 Gaia DR1 4622028059160745472 Gaia DR2 4622028063454680192

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