B2 0748+33

Basic data :
7C 074841.20+332107.00 -- 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 (2020A&A,7C,...), QSO (2011MNRAS,QSO,...), Bla (2009A&A,[MGL2009],...), MIR (WISEA,WISE), AGN (CGRaBS), * (Gaia), Opt (SDSS) 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) : 07 51 53.67324343 +33 13 19.8189929 (Radio) [ 0.0879635 0.1342 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) : 07 48 41.05347299 +33 21 03.6233372 [ 0.0879635 0.1342 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) : 187.26230866221 +26.35659430532 [ 0.0879635 0.1342 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 : 0.156 0.277 [0.213 0.120 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) 237437 [150] / z(spectroscopic) 1.93523 [0.0005] / cz 580167.4 [150]    C 2012ApJS..203...21A 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): 0.3385 [0.1728] 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 20.00 [~] D 2010A&A...518A..10V V 19.78 [~] D 2010A&A...518A..10V R 19.43 [~] D 2008ApJS..175...97H G 19.114731 [0.011461] C 2020yCat.1350....0G u (AB) 19.9542 [0.0343] C 2020ApJS..250....8L g (AB) 19.721 [0.013] C 2015ApJS..219...12A r (AB) 19.597 [0.015] C 2015ApJS..219...12A i (AB) 19.291 [0.015] C 2015ApJS..219...12A z (AB) 19.112 [0.038] C 2015ApJS..219...12A	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 074841.20+332107.00	IERS B0748+333	SDSS J075153.67+331319.8	[MML2015] 5BZQ J0751+3313
B2 0748+33	IVS B0748+333	SDSS J075153.67+331319.7	[P82] 0748+333
B2.1 0748+33	JVAS J0751+3313	TXS 0748+333	[VV2000] J075153.7+331320
BWE 0748+3321	JVAS B0748+333	VCS1 J0751+3313	[VV2003] J075153.7+331320
CGRaBS J0751+3313	MITG J075153+3312	WB 0748+3321	[VV2006] J075153.7+331320
CLASS J075153.6730+331319.804	MY 074843.8+332032.9	WISEA J075153.68+331319.7	[VV2010] J075153.7+331320
FIRST J075153.6+331319	MY 074843.8+331248.9	WISE J075153.68+331319.7	[VV96] J075153.7+331320
GB2 0748+333	NVSS J075153+331319	WN B0748.7+3320A	[VV98] J075153.7+331320
GB6 B0748+3321	OHIO I 380	[A86] 0748+333	Gaia DR3 882167384743362688
87GB 074841.4+332113	QSO B0748+333	[FA87] 0748+333	Gaia DR1 882167384743362688
HS 0748+3321	S2 0748+33	[HB93] 0748+333	Gaia DR2 882167384743362688
ICRF J075153.6+331319	SDSS J075153.66+331319.8	[MGL2009] BZQ J0751+3313

References (75 between 1850 and 2023) (Total 75) 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

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Data at NED - NASA/IPAC Extragalactic Database : B2 0748+33

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