IERS B1546+027

Basic data :
QSO B1546+0246 -- 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 (2010AJ,BWE,...), QSO (2010ApJ,QSO,...), Bla (2009A&A,[DGT2001],...), X (2007AJ,2E,...), AGN (2007AJ,CGRaBS,...), gam (1FGL,2FGL,...), Bz? (2013ApJS,[SRM2005]), MIR (WISEA,WISE), Opt (LAMOST,SDSS), * (Gaia), 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) : 15 49 29.43684740 +02 37 01.1632556 (Radio) [ 0.0307179 0.0312 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) : 15 46 58.29893836 +02 46 06.1510090 [ 0.0307179 0.0312 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) : 010.84580046819 +40.90440335367 [ 0.0307179 0.0312 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 : -0.068 0.122 [0.095 0.072 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) 99930 [9] / z(spectroscopic) 0.41421 [0.00003] / cz 124177.0 [9.0]    (Opt) C 2012ApJS..203...21A 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): 0.0000122 0.0000052 -4 (Rad) D 2010AJ....139.1713C 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 17.57 [~] D 2010A&A...518A..10V V 17.42 [~] D 2010A&A...518A..10V R 15.53 [~] D 2008ApJS..175...97H G 17.189901 [0.034688] C 2020yCat.1350....0G J (AB) 16.759 [0.008] B 2013ApJS..206....4K H (AB) 16.407 [0.008] B 2013ApJS..206....4K K (AB) 16.003 [0.007] B 2013ApJS..206....4K u (AB) 17.606 [0.010] C 2020ApJS..249....3A g (AB) 17.268 [0.005] B 2020ApJS..249....3A r (AB) 17.264 [0.005] B 2020ApJS..249....3A i (AB) 17.056 [0.005] B 2020ApJS..249....3A z (AB) 16.610 [0.009] B 2020ApJS..249....3A	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 B1546+0246	JVAS J1549+0237	1RXS J154928.7+023655	[P82] 1546+027
BWE 1546+0246	1Jy 1546+027	SDSS J154929.44+023701.1	[S77] 319
CGRaBS J1549+0237	LAMOST J154929.44+023701.0	SDSS J154929.43+023701.1	[SRC2012b] J1549+0237
CLASS J154929.4362+023701.163	MASIV J1549+0237	TIC 272673927	[SRM2005] J154929.43+023701.1
2E 3504	2MASS J15492943+0237010	TXS 1546+027	[VV2000] J154929.3+023702
2E 1546.9+0246	MITG J154930+0236	VSOP J1549+0237	[VV2003] J154929.3+023702
EF B1546+0245	NEWPS5 J1549+0237	WB 1546+0246	[VV2006] J154929.3+023702
1FGL J1549.3+0235	NVSS J154929+023700	WISEA J154929.43+023701.1	[VV2010] J154929.3+023702
2FGL J1549.5+0237	OHIO R 078	WISE J154929.44+023701.2	[VV96] J154929.3+023702
3FGL J1549.4+0237	PKS J1549+0237	WISE J154929.43+023701.1	[VV98] J154929.3+023702
4FGL J1549.5+0236	PKS 1546+027	WMAP 5	[WCO2009] J154933+023346
FIRST J154929.4+023701	PMN J1549+0237	WMAP J1549+0236	[WTW94] 1546+027
GB6 B1546+0246	QSO B1546+027	9Y-MST J1549+0235	[ZEH2003] RX J1549.4+0236 3
GB6 J1549+0237	QSO J1549+0237	[DGT2001] B1546+027	Gaia DR3 4423448219003043968
87GB 154657.5+024620	RGB J1549.5+0237	[GGR94] 1546+027	Gaia DR1 4423448219003043968
ICRF J154929.4+023701	RGB J1549+026	[HB93] 1546+027	Gaia DR2 4423448219003043968
IERS B1546+027	RORF 1546+027	[IN88] 1546+027
IVS B1546+027	RX J1549.4+0236	[MGL2009] BZQ J1549+0237
JVAS B1546+027	RX J1549.4+0237	[MML2015] 5BZQ J1549+0237

References (341 between 1850 and 2023) (Total 341) 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 B1546+027

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