QSO B1217+348

Basic data :
QSO B1217+348 -- 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: Rad (2020A&A,BWE,...), BLL (2008AJ,[VV2000b],...), Bla ([DGT2001],[IN88],...), gam (1FGL,3FGL,...), X (2007AJ,RX,...), QSO (2016A&A,QSO,...), G (2014ApJ,LEDA), MIR (WISEA,WISE), AGN (CGRaBS), BL? (2007AJ), Bz? ([SRM2005]), Q? (FBQS), * (Gaia), NIR (2MASS), 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) : 12 20 08.2941462528 +34 31 21.743167116 (Optical) [ 0.0547 0.0607 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) : 12 17 38.3408573022 +34 48 00.375617872 [ 0.0547 0.0607 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) : 163.2469135492511 +80.0159357837291 [ 0.0547 0.0607 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 : -0.007 0.042 [0.053 0.083 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) 51918 [15] / z(spectroscopic) 0.19118 [0.00005] / cz 57314.3 [15.0]    (Opt) C 2012ApJS..203...21A 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 17.71 [~] D 2010A&A...518A..10V V 17.09 [~] D 2010A&A...518A..10V R 17.07 [~] D 2008ApJS..175...97H G 17.247589 [0.009838] C 2020yCat.1350....0G J 15.593 [0.064] C 2003yCat.2246....0C H 14.644 [0.064] C 2003yCat.2246....0C K 13.861 [0.050] C 2003yCat.2246....0C u (AB) 18.597 [0.017] C 2012ApJS..203...21A g (AB) 18.029 [0.006] B 2009ApJS..182..543A r (AB) 17.571 [0.006] B 2009ApJS..182..543A i (AB) 17.215 [0.005] B 2009ApJS..182..543A z (AB) 16.894 [0.010] 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: See also Specfind radio flux densities.

QSO B1217+348	IERS B1217+348	VCS1 J1220+3431	[MML2015] 5BZB J1220+3431
BWE 1217+3448	IVS B1217+348	VIPS J12201+3431	[OCL83] 1217+348
CGRaBS J1220+3431	JVAS B1217+348	WB 1217+3448	[SRM2005] J122008.29+343121.7
FBQS J1220+3431	JVAS J1220+3431	WISEA J122008.29+343121.7	[VV2000b] J122008.4+343122
1FGL J1220.2+3432	LEDA 3084739	WISE J122008.30+343121.7	[VV2003b] J122008.4+343122
3FGL J1220.2+3434	2MASS J12200831+3431219	WISE J122008.29+343121.7	[VV2006b] J122008.4+343122
4FGL J1220.1+3432	NVSS J122008+343122	WN B1217.6+3448	[VV2010b] J122008.4+343122
3FHL J1220.0+3432	RGB J1220+345	9Y-MST J1219+3431	[VV98b] J122008.4+343122
FIRST J122008.3+343121	RGB J1220.1+3431	[DGT2001] B1217+348	Gaia DR3 4017045326690644480
GB2 1217+348	RX J1220.1+3431	[DGT2001] J1220+345	Gaia DR1 4017045322395058304
GB6 B1217+3448	1RXS J122008.1+343129	[HB93] 1217+348	Gaia DR2 4017045326690644480
87GB 121738.9+344833	SDSS J122008.29+343121.7	[IN88] 1217+348
ICRF J122008.2+343121	TIC 139087764	[MGL2009] BZB J1220+3431

References (99 between 1850 and 2023) (Total 99) 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 : QSO B1217+348

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

report an error concerning the data of this object

Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:@1904265 and select 'bookmark this link' or equivalent in the popup menu