IERS B1222+438

Basic data :
6C 122223+435147 -- 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 (2014ApJS,6C,...), gam (3EG,1FGL,...), BLL (2008AJ,[VV2003b],...), Bla ([MGL2009],[MML2015]), QSO (2016A&A), MIR (WISEA,WISE), rG (2022A&A), AGN (2011ApJ), * (Gaia), 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 24 51.50530154 +43 35 19.2873713 (Radio) [ 0.0981075 0.1365 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 22 24.32389702 +43 51 56.0412431 [ 0.0981075 0.1365 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) : 139.28852454303 +72.68546044612 [ 0.0981075 0.1365 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 : 0.597 -1.583 [0.731 0.830 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) 186775 [956] / z(spectroscopic) 1.07491 [0.00319] / cz 322249.9 [956.3]    D 2009ApJS..182..543A 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): 0.4484 [0.8047] 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 (9) : B 21.12 [~] D 2010A&A...518A..10V V 20.66 [~] D 2010A&A...518A..10V R 20.2 [~] E 2009A&A...495..691M G 20.523096 [0.023778] C 2020yCat.1350....0G u (AB) 21.0922 [0.1004] D 2020ApJS..250....8L g (AB) 20.6117 [0.0314] C 2020ApJS..250....8L r (AB) 20.0919 [0.0272] C 2020ApJS..250....8L i (AB) 19.6860 [0.0252] C 2020ApJS..250....8L z (AB) 19.3001 [0.0596] C 2020ApJS..250....8L	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: VIPS J12248+4335 is a likely optical counterpart for this object (Taylor et al., 2007ApJ...671.1355T) 3EG J1227+4302 is a likely gamma-ray counterpart for this object (Taylor et al., 2007ApJ...671.1355T) See also Specfind radio flux densities.

6C 122223+435147	GB6 B1222+4352	NVSS J122451+433520	WISE J122451.50+433519.4
B3 1222+438	87GB 122225.3+435213	SDSS J122451.50+433519.3	WN B1222.4+4351
BWE 1222+4352	ICRF J122451.5+433519	SDSS J122451.50+433519.2	[MGL2009] BZB J1224+4335
7C 122224.50+435157.00	IERS B1222+438	TXS 1222+438	[MML2015] 5BZB J1224+4335
CLASS J122451.5073+433519.275	INTREF 498	VCS1 J1224+4335	[VV2003b] J122451.5+433520
3EG J1227+4302	IVS B1222+438	VIPS J12248+4335	[VV2006b] J122451.5+433520
1FGL J1225.8+4336	JVAS J1224+435	VIPS 554	[VV2010b] J122451.5+433520
2FGL J1225.0+4335	JVAS J1224+4335	VLSS J1224.8+4335	Gaia DR3 1535533924527249536
3FGL J1224.6+4332	JVAS B1222+438	WB 1222+4352	Gaia DR1 1535533924527249536
4FGL J1224.9+4334	MY 122224.8+435206.2	WISEA J122451.50+433519.4	Gaia DR2 1535533924527249536
FIRST J122451.4+433519	MY 122224.8+433529.5	WISE J122451.51+433519.4

References (71 between 1850 and 2023) (Total 71) 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 B1222+438

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:IERS B1222+438 and select 'bookmark this link' or equivalent in the popup menu