IERS B1255+327

Basic data :
AB 66 -- Blazar 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,7C,...), QSO (2013ApJS,[VV2010]), Bla (2009A&A,[MGL2009],...), gam (1FGL,2FGL,...), AGN (2011ApJ,CGRaBS,...), X (2009A&A,RX,...), Opt (ATO,LAMOST,...), MIR (WISEA,WISE), Bz? (2013ApJS), V* (2018AJ), * (Gaia), smm (H), UV (AB), NIR (2MASS) 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 57 57.23184476 +32 29 29.3264986 (Radio) [ 0.0730024 0.1039 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 55 33.95685295 +32 45 40.7865247 [ 0.0730024 0.1039 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) : 108.56699741325 +84.45391227905 [ 0.0730024 0.1039 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 : -0.111 0.155 [0.161 0.143 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) 159099 [~] / z(spectroscopic) 0.806000 [~] / cz 241632.72 [~]    (Opt) D 2018A&A...613A..51P 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): 0.0261 [0.1362] 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 (12) : B 19.40 [~] D 2010A&A...518A..10V V 19.17 [~] D 2010A&A...518A..10V R 17.69 [~] D 2008ApJS..175...97H G 18.145271 [0.035184] C 2020yCat.1350....0G J 15.721 [0.067] C 2003yCat.2246....0C H 15.013 [0.068] C 2003yCat.2246....0C K 14.125 [0.054] C 2003yCat.2246....0C u (AB) 19.4732 [0.0306] C 2020ApJS..250....8L g (AB) 18.9430 [0.0205] C 2020ApJS..250....8L r (AB) 18.8035 [0.0161] C 2020ApJS..250....8L i (AB) 18.6851 [0.0179] C 2020ApJS..250....8L z (AB) 18.4136 [0.0296] 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: See also Specfind radio flux densities.

7C 1255+3245	4FGL J1257.8+3228	NVSS J125757+322929	WN B1255.5+3245
AB 66	FIRST J125757.2+322929	OHIO N 393	9Y-MST J1258+3224
ATO J194.4884+32.4914	GB2 1255+327	RGB J1258.0+3229	[BSF97] J125757.24+322929.4
B2.1 1255+32	GB6 B1255+3245	RGB J1257+324	[CRJ2004] J1257.9+3229
B2 1255+32	87GB 125534.2+324554	RX J1257.9+3229	[MGL2009] BZQ J1257+3229
BWE 1255+3245	H-ATLAS J125757.3+322930	1RXS J125756.7+322947	[MML2015] 5BZQ J1257+3229
5C 12.76	ICRF J125757.2+322929	SDSS J125757.23+322929.2	[SRC2012b] J1257+3229
6C 125533+324509	IERS B1255+327	TIC 165917699	[VV2010] J125757.3+322929
7C 125533.89+324534.00	IVS B1255+327	TXS 1255+327	Gaia DR3 1467353006626702080
CGRaBS J1257+3229	JVAS J1257+3229	VCS1 J1257+3229	Gaia DR1 1467353002335230592
CLASS J125757.2312+322929.321	JVAS B1255+327	VIPS J12579+3229	Gaia DR2 1467353006626702080
1FGL J1258.3+3227	LAMOST J125757.23+322929.2	WB 1255+3245
2FGL J1258.2+3231	2MASS J12575723+3229292	WISEA J125757.23+322929.3
3FGL J1258.1+3233	MITG J125757+3229	WISE J125757.23+322929.3

References (110 between 1850 and 2023) (Total 110) 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 B1255+327

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