IERS B1452+301

Basic data :
7C 1452+3008 -- Quasar 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 (2010A&A,QSO,...), Bla (2009A&A,[MGL2009],...), X (2009A&A,RX,...), IR (WISEA,WISE), * (Gaia) 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) : 14 54 32.2969507416 +29 55 58.051407972 (Optical) [ 0.2772 0.3645 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) : 14 52 25.0478471359 +30 08 06.459211995 [ 0.2772 0.3645 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) : 046.2019147614660 +62.8975538563151 [ 0.2772 0.3645 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 : 0.674 0.274 [0.529 0.504 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) 127840 [0] / z(spectroscopic) 0.5770 [0.0000] / cz 172980 [0]    (Opt) C 2014A&A...563A..54P 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 18.2 [~] E ~ V 18.5 [~] E ~ R 18.9 [~] E 2009A&A...495..691M G 20.317926 [0.006637] C 2020yCat.1350....0G u (AB) 20.7929 [0.0633] C 2020ApJS..250....8L g (AB) 20.5477 [0.0233] C 2020ApJS..250....8L r (AB) 20.6501 [0.0311] C 2020ApJS..250....8L i (AB) 19.9714 [0.0395] C 2020ApJS..250....8L z (AB) 19.7477 [0.0656] 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 1452+3008	IVS B1452+301	SDSS J145432.29+295558.0	[MML2015] 5BZQ J1454+2955
B2 1452+30	JVAS J1454+2955	TXS 1452+301	[S77] 300
B2.1 1452+30	MITG J145432+2955	VCS5 J1454+2955	[VV2000] J145432.3+295558
BWE 1452+3007	NVSS J145432+295558	VLSS J1454.5+2955	[VV2003] J145432.3+295558
6C 145225+300815	OHIO Q 287	VRO 30.14.03	[VV2006] J145432.3+295558
7C 145225.30+300807.00	QSO B1452+301	WB 1452+3007	[VV2010] J145432.3+295558
EF B1452+3008	RGB J1454.5+2955	WISEA J145432.29+295558.1	[VV96] J145432.3+295558
FIRST J145432.3+295558	RGB J1454+299	WISE J145432.29+295558.1	[VV98] J145432.3+295558
GB6 B1452+3007	RX J1454.5+2956	WN B1452.4+3008	[ZEH2003] RX J1454.5+2956 3
87GB 145225.6+300747	RX J1454.5+2955	[HB93] 1452+301	Gaia EDR3 1281976613198061312
ICRF J145432.2+295558	1RXS J145432.5+295601	[MGL2009] BZU J1454+2955	Gaia DR1 1281976613198061312
IERS B1452+301	S2 1452+30	[MGL2009] BZQ J1454+2955	Gaia DR2 1281976613198061312

References (59 between 1850 and 2022) (Total 59) 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 B1452+301

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