NAME APM 08279+5255

Basic data :
QSO J0831+5245 -- 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: QSO (2010A&A,QSO,...), X (2XMM,3XMM), smm (JCMTSE,JCMTSF), Opt (PSO,SDSS), LeQ (2007ApJ), * (Gaia), Rad (FIRST), NIR (2MASS), MIR (WISEA), IR (IRAS) 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) : 08 31 41.7108197808 +52 45 17.616994560 (Optical) [ 0.6943 0.6146 90 ] C 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) : 08 27 58.0075279179 +52 55 27.013221060 [ 0.6943 0.6146 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) : 165.7547137577989 +36.2405205175041 [ 0.6943 0.6146 90 ] 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) 275922 [~] / z(emission) 3.911 [~] / cz 1172488 [~]    (Opt) C 2017AJ....154..114O 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 19.2 [~] E ~ R 14.5 [~] D 2004MNRAS.348..857H G 16.204090 [0.013706] C 2020yCat.1350....0G I 13.9 [~] D 2004MNRAS.348..857H J 13.410 [0.027] C 2003yCat.2246....0C H 12.661 [0.026] C 2003yCat.2246....0C K 12.050 [0.023] C 2003yCat.2246....0C u (AB) 24.237 [1.062] D 2009ApJS..182..543A g (AB) 17.310 [0.005] B 2009ApJS..182..543A r (AB) 15.387 [0.003] B 2009ApJS..182..543A i (AB) 14.864 [0.003] B 2009ApJS..182..543A z (AB) 14.639 [0.005] B 2009ApJS..182..543A	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: lensed QSO, lens = [ILI99] APM 08279+5255 C, images = [ILI99] APM 08279+5255 A and [ILI99] APM 08279+5255 B

QSO J0831+5245	2MASS J08314169+5245174	QSO B0827.9+5255	[VV2000] J083141.6+524518
FIRST J083141.6+524517	NAME APM 08279+5255	SDSS J083141.70+524517.5	[VV2003] J083141.6+524518
IRAS F08279+5255	NAME APM 0827+525	TIC 71213405	[VV2006] J083141.6+524518
JCMTSE J083141.9+524518	PSO J127.9237+52.7548	WISEA J083141.69+524517.5	[VV2010] J083141.6+524518
JCMTSF J083141.3+524518	QSO B0827+529	2XMM J083141.6+524517	Gaia DR3 1028742871820608896
KODIAQ J083141+524517	QSO B0827+5255	3XMM J083141.7+524517	Gaia DR2 1028742871820206336

References (551 between 1850 and 2024) (Total 551) 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 : NAME APM 08279+5255

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