IERS B2052-474

Basic data :
QSO B2052-474 -- Blazar 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,...), gam (2AGL,2EG,...), QSO (2010ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), X (2009A&A,PBC,...), AGN (2011ApJ,CGRaBS), * (USNO,Gaia), cm (AT20G,ATPMN), MIR (WISEA,WISE), Q? (2021MNRAS), AG? (2022ApJS), G (LEDA), 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) : 20 56 16.35980507 -47 14 47.6277179 (Radio) [ 0.0319617 0.0323 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) : 20 52 50.08986753 -47 26 19.4221512 [ 0.0319617 0.0323 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) : 352.59057965329 -40.38136009421 [ 0.0319617 0.0323 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 : 0.052 -0.138 [0.114 0.109 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) 216667 [150] / z(emission) 1.49260000 [0.0005] / cz 447470.2228 [150]    (Opt) C 2022ApJS..261....2K 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 18.29 [~] D 2008MNRAS.384..775M V 19.1 [~] E ~ R 18.07 [~] D 2008ApJS..175...97H G 17.731371 [0.009960] C 2020yCat.1350....0G J 16.581 [0.130] D 2003yCat.2246....0C H 15.565 [0.129] D 2003yCat.2246....0C K 14.919 [0.113] 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 B2052-474	GLEAM J205616-471446	RORF 2052-474	9Y-MST J2056-4713
2AGL J2057-4711	ICRF J205616.3-471447	RX J2056.2-4714	[CH94] 2052-474
AT20G J205616-471447	IERS B2052-474	1RXS J205615.8-471446	[HB93] 2052-474
AT20G J205616.4-471447	INTREF 1045	SPASS J205616-471448	[LBD96] J2058-4657
ATPMN J205616.3-471447	IVS B2052-474	SUMSS J205616-471448	[MEM2008] 273
CGRaBS J2056-4714	1Jy 2052-47	SWIFT J2055.6-4710	[MGL2009] BZQ J2056-4714
CRATES J205615-471445	1Jy 2052-474	SWIFT J2056.0-4713	[MML2015] 5BZQ J2056-4714
Cul 2052-474	LEDA 2830665	SWIFT J2056.0-4711	[QC93] 2052-474
2EG J2058-4657	2MASS J20561636-4714475	TGSSADR J205616.2-471449	[VV2000] J205616.4-471448
3EG J2055-4716	MRC 2052-474	TIC 126562262	[VV2003] J205616.4-471448
EGR J2057-4658	PBC J2055.7-4711	USNO-A2.0 0375-39149937	[VV2006] J205616.4-471448
0FGL J2056.1-4715	PCCS2 143 G352.59-40.37	WISEA J205616.36-471447.6	[VV2010] J205616.4-471448
1FGL J2056.3-4714	PKS 2052-47	WISE J205616.35-471447.3	[VV96] J205616.4-471448
2FGL J2056.2-4715	PKS J2056-4714	WISE J205616.36-471447.6	[VV98] J205616.4-471448
3FGL J2056.2-4714	PKS 2052-474	WMAP 208	[WCO2009] J205601-471556
4FGL J2056.2-4714	PMN J2056-4714	WMAP J2056-4717	Gaia DR3 6481716565812965248
1FHL J2056.3-4712	QSO B2052-47	WMAP J2056-4716	Gaia DR1 6481716565812965248
3FHL J2056.2-4713	QSO J2056-472	WMAP J2056-4714	Gaia DR2 6481716565812965248
1FLE J2056-4724	RFC J2056-4714	XMMSL1 J205617.1-471450

References (316 between 1850 and 2024) (Total 316) 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 : IERS B2052-474

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object

Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:IERS B2052-474 and select 'bookmark this link' or equivalent in the popup menu