QSO B2121+053

Basic data :
QSO J2123+0535 -- 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 (2010AJ,CLASS,...), QSO (2005ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), AGN (2011AJ,CGRaBS), gam (3FGL,4FGL), X (2009A&A,2E), MIR (WISEA,WISE), BL? (2021MNRAS), Bz? ([SRM2005]), Q? (2021MNRAS), AG? (2022ApJS), * (Gaia), UV (PG), 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) : 21 23 44.51739933 +05 35 22.0930238 (Radio) [ 0.0307531 0.0317 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) : 21 21 14.80879172 +05 22 27.3609945 [ 0.0307531 0.0317 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) : 058.00558479956 -30.12172912679 [ 0.0307531 0.0317 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 : 0.018 -0.017 [0.218 0.207 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) 235202 [~] / z(~) 1.8780 [~] / cz 563010 [~]    D 2002MNRAS.329..700S 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): 0.0755 [0.1893] A 2020yCat.1350....0G Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode" maj-axis : major axis size (arc minutes) min-axis : minor axis size (arc minutes) angle : orientation angle (in degrees) (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam) quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the angular size reference Angular size (arcmin): 0.0000120 0.0000048 -2 (Rad) D 2010AJ....139.1713C 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 18.3 [~] E ~ V 20.40 [~] D 2010ApJ...710..764K R 19.86 [~] D 2008ApJS..175...97H G 18.636679 [0.026037] C 2020yCat.1350....0G J 17.018 [0.203] D 2003yCat.2246....0C H 15.783 [0.159] D 2003yCat.2246....0C K 14.645 [0.104] 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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

QSO J2123+0535	JVAS J2123+0535	RORF 2121+053	[MML2015] 5BZQ J2123+0535
CGRaBS J2123+0535	MASIV J2123+0535	S3 2121+05	[ODS2007] HFP J2123+0535
CLASS J212344.5148+053522.097	2MASS J21234451+0535222	TIC 269985571	[S77] 357
CRATES J212344+053534	NEWPS5 J2123+0535	TXS 2121+053	[SRM2005] J212344.51+053522.0
2E 4470	NRAO 2121+05	VLSSr J212344.7+053524	[VV2000] J212344.5+053523
2E 2121.2+0522	NVSS J212344+053522	VSOP J2123+0535	[VV2003] J212344.5+053523
3FGL J2123.6+0533	OHIO X 036	WB 2121+0522	[VV2006] J212344.5+053523
4FGL J2123.6+0535	PG 2121+053	WISEA J212344.51+053522.1	[VV2010] J212344.5+053523
GB6 J2123+0535	PKS 2121+053	WISE J212344.51+053522.1	[VV96] J212344.5+053523
GB6 B2121+0522	PKS J2123+0535	WMAP 27	[VV98] J212344.5+053523
87GB 212114.9+052242	PMN J2123+0535	WMAP J2123+0536	[WTW94] 2121+053
GLEAM J212344+053534	QSO B2121+05	WMAP J2123+0534	Gaia DR3 1738458828477229568
ICRF J212344.5+053522	QSO B2121+053	9Y-MST J2123+0535	Gaia DR1 1738458828477229568
IERS B2121+053	QSO B2121+050	Zel 2121+053	Gaia DR2 1738458828477229568
IVS B2121+053	QSO B2121+0522	[HB93] 2121+053
JVAS B2121+053	RFC J2123+0535	[MGL2009] BZQ J2123+0535

References (294 between 1850 and 2024) (Total 294) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : QSO B2121+053

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