IERS B1212+078

Basic data :
QSO B1212+078 -- 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 (2010A&A,[VV2000b],...), X (2009A&A,1ES,...), Bla (2017A&A,[DGT2001],...), G (2014ApJ,LEDA,...), Bz? (2019A&A,3HSP,...), AGN (2015Ap&SS), gam (1BIGB,4FGL), QSO (QSO), LIN (2018MNRAS), rG (2018AJ), BiC (2010ApJS), * (Gaia), NIR (2MASS), MIR (WISEA), 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 15 10.9765816512 +07 32 04.676330688 (Optical) [ 0.1118 0.1037 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 12 37.7651975048 +07 48 45.025877643 [ 0.1118 0.1037 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) : 277.5859985862459 +68.6034972640349 [ 0.1118 0.1037 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 : 0.386 -0.300 [0.170 0.153 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) 38138 [6] / z(spectroscopic) 0.13645 [0.00002] / cz 40906.7 [6.0]    (Opt) C 2012ApJS..203...21A 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): 0.1616 [0.2071] A 2018yCat.1345....0G Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode" maj-axis : major axis size (arc minutes) min-axis : minor axis size (arc minutes) angle : orientation angle (in degrees) (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam) quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the angular size reference Angular size (arcmin): 0.190 0.125 120 (NIR) C 2006AJ....131.1163S 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 (11) : V 16.0 [~] E ~ R 14.8 [~] E 2009A&A...495..691M G 17.630899 [0.006156] C 2020yCat.1350....0G J 14.205 [0.111] D 2006AJ....131.1163S H 13.184 [0.090] C 2006AJ....131.1163S K 12.867 [0.133] D 2006AJ....131.1163S u (AB) 18.129 [0.022] C 2008ApJS..175..297A g (AB) 17.208 [0.005] C 2008ApJS..175..297A r (AB) 16.327 [0.004] C 2008ApJS..175..297A i (AB) 15.906 [0.004] C 2008ApJS..175..297A z (AB) 15.611 [0.007] C 2012ApJS..203...21A	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 B1212+078	IVS B1212+078	SDSS J121510.97+073204.6	[R97] NGC 4235 1
1BIGB J121510.9+073203	LEDA 1324265	TIC 389316654	[VV2000b] J121510.9+073203
BWE 1212+0748	2MASS J12151096+0732045	WB 1212+0748	[VV2003b] J121510.9+073203
1ES 1212+07.8	2MASX J12151097+0732048	2WHSP J121510.9+073203	[VV2006b] J121510.9+073203
4FGL J1215.1+0731	NVSS J121510+073205	WISEA J121510.97+073204.6	[VV2010b] J121510.9+073203
FIRST J121510.9+073204	PMN J1215+0732	9Y-MST J1215+0731	[VV98b] J121511.0+073204
GB6 B1212+0749	RBS 1085	[A97b] 2-1	[ZEH2003] RX J1215.1+0732 3
GB6 J1215+0732	1REX J121510+0732.0	[A97c] J121510.9+073204	Gaia DR3 3901643300658890752
87GB 121238.5+074859	RGB J1215+075	[BSF97] J121511.0+073205	Gaia DR2 3901643300658890752
3HSP J121511.0+073204	RGB J1215.2+0732	[DGT2001] B1212+0748
ICRF J121510.9+073204	RX J1215.1+0732	[MGL2009] BZB J1215+0732
IERS B1212+078	1RXS J121510.9+073205	[MML2015] 5BZG J1215+0732

References (94 between 1850 and 2023) (Total 94) 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 : IERS B1212+078

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