PKS 1908-201

Basic data :
QSO B1908-202 -- 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 (ICRF,IERS,...), gam (2EG,3EG,...), QSO (2010ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), IR (2MASS,WISEA,...), AGN (2011ApJ,CGRaBS), * (EPIC,Gaia), X (2009A&A), cm (AT20G) 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) : 19 11 09.6526857480 -20 06 55.109271780 (Optical) [ 0.1707 0.1717 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) : 19 08 12.4668824358 -20 11 55.199224514 [ 0.1707 0.1717 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) : 016.8744283451353 -13.2174518148591 [ 0.1707 0.1717 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 : 0.183 0.031 [0.181 0.178 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) 190666 [~] / z(spectroscopic) 1.12 [~] / cz 335768 [~]    (Opt) D 2017ApJS..233....3T 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 18.21 [~] D 2008MNRAS.384..775M R 18.14 [~] D 2008ApJS..175...97H G 18.612360 [0.035299] C 2020yCat.1350....0G J 15.047 [0.036] C 2003yCat.2246....0C H 14.017 [0.036] C 2003yCat.2246....0C K 13.131 [0.043] 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!).

QSO B1908-202	3FHL J1911.3-2007	PMN J1911-2006	[MGL2009] BZQ J1911-2006
AT20G J191109-200655	1FLE J1914-2017	QSO J1911-201	[MML2015] 5BZQ J1911-2006
AT20G J191109.7-200655	GRO J1911-20	RORF 1908-201	[VV2003] J191109.7-200655
CGRaBS J1911-2006	ICRF J191109.6-200655	TIC 188276887	[VV2006] J191109.7-200655
2EG J1911-1945	IERS B1908-201	TXS 1908-201	[VV2010] J191109.7-200655
3EG J1911-2000	INTREF 967	VSOP J1911-2006	[WPW2003] J1911-2006
EGR J1912-2000	IVS B1908-201	WISEA J191109.64-200654.8	EQ 1908-2011
EPIC 217700467	2MASS J19110965-2006551	WISE J191109.64-200654.8	EQ 1908-20
0FGL J1911.2-2011	MRC 1908-201	WISH B1908.2-2011	Gaia EDR3 4083730324670186240
1FGL J1911.2-2007	NVSS J191109-200655	WMAP J1911-2006	Gaia DR1 4083730324670186240
2FGL J1911.1-2005	OHIO V -213	WMAP J1911-2007	Gaia DR2 4083730324670186240
3FGL J1911.2-2006	PKS 1908-201	[GR92] 1908-201
4FGL J1911.2-2006	PKS J1911-2006	[MEM2008] 252

References (253 between 1850 and 2022) (Total 253) 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 1908-201

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