QSO B0252-549

Query : QSO B0252-549

Basic data :
QSO B0252-549 -- 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,ACT,...), QSO (2010A&A,QSO,...), Bla (2009A&A,[MGL2009],...), AGN (2014MNRAS,CGRaBS), X (2009A&A,RX,...), gam (3FGL,4FGL), cm (AT20G,ATPMN), MIR (WISEA,WISE), Q? (2021MNRAS), AG? (2022ApJS), G (LEDA), * (Gaia), UV (UVQS), 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) : 		02 53 29.1803201880 -54 41 51.437517216 (Optical) [ 0.0495 0.0512 90 ] A 2020yCat.1350....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) : 		02 52 00.2617482272 -54 54 02.486070625 [ 0.0495 0.0512 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) : 		272.4924645816888 -54.6100661776126 [ 0.0495 0.0512 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 : 		0.044 0.091 [0.056 0.058 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) 121470 [~] / z(emission) 0.537 [~] / cz 160989 [~]
   (Opt) D 2016ApJ...818..113N
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): 		0.0163 [0.0522] 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 (7) :
B 17.65 [~] D 2008MNRAS.384..775M
V 19.3 [~] E ~
R 16.79 [~] D 2008ApJS..175...97H
G 17.435711 [0.006954] C 2020yCat.1350....0G
J 16.165 [0.127] D 2003yCat.2246....0C
H 15.150 [0.084] C 2003yCat.2246....0C
K 14.515 [0.090] C 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 (50) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO J0253-5441 IERS B0252-549 SPASS J025329-544149 [MGL2009] BZQ J0253-5441
ACT-S J025328-544151 IVS B0252-549 SUMSS J025329-544151 [MML2015] 5BZQ J0253-5441
ACT-S J025329-544152 LEDA 2823291 SUMSS J025329-544150 [VV2000] J025329.2-544151
AT20G J025329-544151 2MASS J02532917-5441516 TIC 207136348 [VV2003] J025329.2-544151
AT20G J025329.2-544151 MRC 0252-548 UVQS J025329.16-544151.4 [VV2006] J025329.2-544151
ATPMN J025329.1-544151 PCCS2 143 G272.47-54.62 VSOP J0253-5441 [VV2010] J025329.2-544151
CGRaBS J0253-5441 PKS J0253-5441 WISEA J025329.16-544151.4 [VV96] J025329.2-544151
CRATES J025330-544142 PKS 0252-549 WISE J025329.16-544151.4 [VV98] J025329.2-544151
3FGL J0253.1-5438 PMN J0253-5441 WMAP J0253-5441 Gaia DR3 4740722641479899904
4FGL J0253.2-5441 QSO B0252-549 WMAP 155 Gaia DR1 4740722641479899904
GLEAM J025329-544145 RORF 0252-549 WMAP J0253-5442 Gaia DR2 4740722641479899904
HE 0252-5454 RX J0253.4-5441 [HB93] 0252-549
ICRF J025329.1-544151 1RXS J025328.3-544150 [MEM2008] 36

References (129 between 1850 and 2024) (Total 129)
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 : 3    PLX : 1    PM : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : QSO B0252-549

Link by name to the catalogue in VizieR :

IERS B0252-549 2MASS J02532917-5441516 PKS J0253-5441 PKS 0252-549 PMN J0253-5441
1RXS J025328.3-544150 SUMSS J025329-544151 SUMSS J025329-544150 VSOP J0253-5441 WISEA J025329.16-544151.4
WISE J025329.16-544151.4 WMAP J0253-5441 WMAP J0253-5442 Gaia DR3 4740722641479899904 Gaia DR1 4740722641479899904
Gaia DR2 4740722641479899904

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