TXS 1520+319

Basic data :
7C 1520+3154 -- 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,7C,...), QSO (2008ApJS,QSO,...), gam (0FGL,1FGL,...), Bla (2009A&A,[MGL2009],...), AGN (2011ApJ,CGRaBS,...), IR (WISEA,WISE), Bz? ([SRM2005]), * (Gaia) 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 22 09.9919479096 +31 44 14.382105036 (Optical) [ 0.1313 0.1579 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) : 15 20 08.1180590633 +31 54 54.603577751 [ 0.1313 0.1579 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) : 050.1639316125879 +57.0226646861712 [ 0.1313 0.1579 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 : -0.157 0.013 [0.175 0.211 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) 216437 [60] / z(spectroscopic) 1.4886 [0.0002] / cz 446271 [60]    (Opt) C 2014A&A...563A..54P 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): 0.1829 [0.2086] 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 (9) : B 20.45 [~] D 2010A&A...518A..10V V 19.89 [~] D 2010A&A...518A..10V R 19.87 [~] D 2008ApJS..175...97H G 19.118876 [0.006192] C 2020yCat.1350....0G u (AB) 20.6209 [0.0458] C 2020ApJS..250....8L g (AB) 20.1732 [0.0241] C 2020ApJS..250....8L r (AB) 19.7921 [0.0178] C 2020ApJS..250....8L i (AB) 19.4971 [0.0209] C 2020ApJS..250....8L z (AB) 19.4474 [0.0432] C 2020ApJS..250....8L	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.

7C 1520+3154	4FGL J1522.1+3144	LAMOST J152209.99+314414.3	WISE J152210.00+314414.4
B2 1520+31	1FHL J1522.2+3145	MITG J152209+3144	WISE J152209.99+314414.4
B2.1 1520+31	3FHL J1522.1+3144	MY 152007.9+314148.4	WN B1520.1+3154
BWE 1520+3155	FIRST J152209.9+314414	NVSS J152209+314414	9Y-MST J1522+3143
6C 152007+315434	1FLE J1522+3147	QSO B1520+319	[MGL2009] BZQ J1522+3144
7C 152008.00+315510.00	GB6 B1520+3154	SDSS J152209.99+314414.3	[MML2015] 5BZQ J1522+3144
CGRaBS J1522+3144	87GB 152006.9+315507	TXS 1520+319	[SRC2012b] J1522+3144
CLASS J152209.9946+314414.426	ICRF J152209.9+314414	VCS1 J1522+3144	[SRM2005] J152209.99+314414.4
0FGL J1522.2+3143	IERS B1520+319	VIPS J15221+3144	[VV2010] J152210.0+314414
1FGL J1522.1+3143	IVS B1520+319	VLSS J1522.1+3144	Gaia EDR3 1277213391387144960
2FGL J1522.1+3144	JVAS B1520+319	WB 1520+3155	Gaia DR1 1277213391387144960
3FGL J1522.1+3144	JVAS J1522+3144	WISEA J152209.99+314414.4	Gaia DR2 1277213391387144960

References (159 between 1850 and 2022) (Total 159) 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 : TXS 1520+319

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