PKS 1244-255

Basic data :
QSO J1246-2547 -- 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,GLEAM,...), QSO (2009ApJS,QSO,...), gam (0FGL,1FGL,...), Bla (2009A&A,[MGL2009],...), AGN (2011ApJ,CGRaBS), X (2009A&A,RX,...), MIR (WISEA,WISE), IR (IRAS,2MASSI), G (LEDA), * (Gaia), cm (AT20G), 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) : 12 46 46.80203943 -25 47 49.2889822 (Radio) [ 0.0340669 0.0355 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) : 12 44 06.71897089 -25 31 26.5536651 [ 0.0340669 0.0355 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) : 301.61804987294 +37.06283990528 [ 0.0340669 0.0355 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 : 0.270 0.035 [0.129 0.077 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) 135833 [~] / z(spectroscopic) 0.63 [~] / cz 188869 [~]    (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): 0.0979 [0.0932] 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 (8) : B 17.65 [~] D 2008MNRAS.384..775M V 17.41 [~] D 2010A&A...518A..10V R 16.96 [~] D 2008ApJS..175...97H G 17.299665 [0.012101] C 2020yCat.1350....0G I 15.5 [~] D 2009ATel.1899....1B J 14.384 [0.032] C 2003yCat.2246....0C H 13.438 [0.024] C 2003yCat.2246....0C K 12.468 [0.028] C 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 J1246-2547	IVS B1244-255	SQUAD DR1 J124646-254749	[HB93] 1244-255
AT20G J124646-254749	1Jy 1244-255	TGSSADR J124646.7-254751	[MEM2008] 164
AT20G J124646.7-254749	LEDA 2827294	TIC 9386019	[MGL2009] BZQ J1246-2547
CGRaBS J1246-2547	2MASS J12464679-2547492	TXS 1244-255	[MML2015] 5BZQ J1246-2547
0FGL J1246.6-2544	2MASSI J1246467-254749	VLSSr J124646.8-254747	[VV2000] J124646.8-254748
1FGL J1246.7-2545	MRC 1244-255	VSOP J1246-2547	[VV2003] J124646.8-254748
2FGL J1246.7-2546	NVSS J124646-254748	WISEA J124646.80-254749.2	[VV2006] J124646.8-254748
3FGL J1246.7-2547	PKS 1244-255	WISE J124646.81-254749.1	[VV2010] J124646.8-254748
4FGL J1246.7-2548	PKS J1246-2547	WISE J124646.80-254749.2	[VV96] J124646.8-254748
1FHL J1246.6-2548	PMN J1246-2547	WISH B1244.1-2531	[VV98] J124646.8-254748
3FHL J1246.6-2548	QSO B1244-255	WMAP 177	[WCO2009] J124702-254632
1FLE J1247-2541	RFC J1246-2547	WMAP J1246-2547	[WPW2003] J1246-2547
GLEAM J124647-254746	RORF 1244-255	WMAP J1246-2546	EQ 1244-25
ICRF J124646.8-254749	RX J1246.7-2548	WMAP J1246-2545	Gaia DR3 3496722305207229440
IERS B1244-255	1RXS J124646.7-254749	9Y-MST J1246-2548	Gaia DR1 3496722300911513856
IRAS F12440-2531	SPASS J124648-254743	[CAB95] IRAS F12440-2531	Gaia DR2 3496722305207229440

References (270 between 1850 and 2023) (Total 270) 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 : PKS 1244-255

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