PKS 0823-223

Basic data :
QSO B0823-223 -- BL Lac 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: Q? (), Rad (2020A&A,ICRF,...), BLL (2010ApJ,[VV2000b],...), gam (0FGL,1FGL,...), Bla (2013ApJS,[IN88],...), QSO (2016A&A,QSO,...), Bz? (2013ApJS), V* (2018AJ), X (2009A&A,1RXS), MIR (WISEA,WISE), AGN (2020MNRAS), BL? (2021MNRAS), * (Gaia), cm (AT20G), NIR (2MASS), Opt (ATO) 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 26 01.5730900658 -22 30 27.204409684 (Optical) [ 0.0389 0.0352 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) : 08 23 50.0794309625 -22 20 34.798447573 [ 0.0389 0.0352 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) : 243.9902606694072 +08.9302305467476 [ 0.0389 0.0352 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 : -0.128 0.062 [0.043 0.040 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) 170797 [~] / z(emission) 0.910 [~] / cz 272811 [~]    (Opt) D 2016ApJ...818..113N 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): 0.0099 [0.0466] 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 (6) : B 16.11 [~] D 2008MNRAS.384..775M V 16.20 [~] D 2010A&A...518A..10V G 16.426661 [0.026677] C 2022yCat.1355....0G J 13.835 [0.026] C 2003yCat.2246....0C H 13.010 [0.022] C 2003yCat.2246....0C K 12.185 [0.024] 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 B0823-223	IERS B0823-223	1RXS J082601.9-223016	[IN88] 0823-223
AT20G J082601-223027	IVS B0823-223	TGSSADR J082601.4-223028	[MEM2008] 108
AT20G J082601.6-223027	2MASS J08260157-2230272	TIC 143908344	[MGL2009] BZB J0826-2230
ATO J126.5065-22.5075	NVSS J082601-223027	TXS 0823-223	[MML2015] 5BZB J0826-2230
0FGL J0826.0-2228	OHIO J -240	VCS1 J0826-2230	[P82] 0823-223
1FGL J0825.8-2230	PKS J0826-2230	VCS2 J0826-2230	[VV2000b] J082601.5-223027
2FGL J0825.9-2229	PKS 0823-223	VLSSr J082601.7-223024	[VV2003b] J082601.5-223027
3FGL J0825.9-2230	PKS 0823-22	WISEA J082601.57-223027.2	[VV2006b] J082601.5-223027
4FGL J0825.9-2230	PMN J0826-2230	WISE J082601.57-223027.2	[VV2010b] J082601.5-223027
1FHL J0826.0-2230	QSO B0823-2220	WISH B0823.8-2221A	[VV98b] J082601.5-223027
2FHL J0825.9-2230	QSO J0826-2230	WMAP J0826-2232	[WPW2003] J0826-2230
3FHL J0825.9-2229	QSO B0823-2230	WMAP J0826-2228	Gaia DR3 5697023601292768640
1FLE J0823-2228	RFC J0826-2230	[BDW2002] q0823-2220	Gaia DR2 5697023601292768640
ICRF J082601.5-223027	RORF 0823-223	[HB93] 0823-223	Gaia DR1 5697023601292768640

References (210 between 1850 and 2024) (Total 210) 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 0823-223

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