B2 2319+27

Basic data :
4C 27.50 -- 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,4C,...), QSO (2010ApJ,QSO,...), gam (1FGL,2FGL,...), Bla (2009A&A,[MGL2009],...), AGN (2011ApJ), MIR (WISEA,WISE), BL? (2021MNRAS), AG? (2022ApJS), G (2MASX), * (Gaia), X (2009A&A), IR (2MASSI), 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) : 23 21 59.86222252 +27 32 46.4436999 (Radio) [ 0.0425586 0.0567 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) : 23 19 31.99658247 +27 16 18.9723125 [ 0.0425586 0.0567 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) : 099.69238735942 -31.25782104366 [ 0.0425586 0.0567 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 : 0.147 -0.127 [0.113 0.097 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) 200892 [~] / z(spectroscopic) 1.25 [~] / cz 374741 [~]    (Opt) D 2017ApJS..233....3T 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): 0.0078 [0.1313] A 2020yCat.1350....0G Syntax of morphological type is : mtype quality bibcode mtype : Hubble morphological class (spirals, ellipticals, etc) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the morphological type reference Morphological type: E D ~ 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): 0.103 0.103 90 (NIR) C 2006AJ....131.1163S 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 (12) : B 19 [~] E ~ V 19.0 [~] E ~ R 18.8 [~] E 2009A&A...495..691M G 17.950672 [0.005470] C 2020yCat.1350....0G J 15.052 [0.207] D 2006AJ....131.1163S H 14.440 [0.262] D 2006AJ....131.1163S K 13.708 [0.192] D 2006AJ....131.1163S u (AB) 18.8341 [0.0228] C 2020ApJS..250....8L g (AB) 18.4717 [0.0180] C 2020ApJS..250....8L r (AB) 17.9277 [0.0147] C 2020ApJS..250....8L i (AB) 17.7449 [0.0121] C 2020ApJS..250....8L z (AB) 17.5857 [0.0241] 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.

4C 27.50	ICRF J232159.8+273246	RORF 2319+272	[MML2015] 5BZQ J2321+2732
B2 2319+27	IERS B2319+272	S1 2319+27	[OR76] 2319+272
B2.2 2319+27	IVS B2319+272	SDSS J232159.86+273246.4	[OWH82] 231932.0+271631
BWE 2319+2716	JVAS J2321+2732	TGSSADR J232159.7+273247	[P82] 2319+272
CLASS J232159.8631+273246.442	JVAS B2319+272	TXS 2319+272	[VV2000] J232159.8+273245
CRATES J232200+273256	1Jy 2319+27	VLSSr J232159.7+273251	[VV2003] J232159.8+273245
CTD 139	1Jy 2319+272	VLSS J2321.9+2732	[VV2006] J232159.8+273245
Cul 2319+272	2MASSI J2321598+273246	VSOP J2321+2732	[VV2010] J232159.8+273245
1FGL J2321.6+2726	2MASX J23215988+2732466	VSOP J2322+2732	[VV96] J232159.8+273245
2FGL J2321.0+2737	MITG J232200+2732	WB 2319+2716	[VV98] J232159.8+273245
3FGL J2321.9+2732	MITG J2332+2732	WISEA J232159.86+273246.7	Gaia DR3 2844831928501379968
4FGL J2321.9+2734	NVSS J232159+273246	WISE J232159.86+273246.9	Gaia DR2 2844831928501379968
3FHL J2321.9+2735	OHIO Z 233	WISE J232159.86+273246.7
GB6 B2319+2716	QSO B2319+272	9Y-MST J2322+2734
87GB 231932.5+271627	RFC J2321+2732	[MGL2009] BZQ J2321+2732

References (145 between 1850 and 2024) (Total 145) 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 : 4C 27.50

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