3C 207

Basic data :
ICRF J084047.5+131223 -- Seyfert 1 Galaxy 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: Sy1 (), Rad (2010AJ,ICRF,...), QSO (2015MNRAS,QSO,...), X (2009ApJ,CXOMP,...), gam (1FGL,2FGL,...), Bla (2009A&A,[MGL2009],...), AGN (2011ApJ,[SRC2012b]), * (EPIC,Gaia), MIR (WISEA,WISE), Bz? (2015Ap&SS), G (LEDA), BH? ([KB2007]), NIR (2MASS), IR (2MASSI), 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) : 08 40 47.58842599 +13 12 23.5637506 (Radio) [ 0.0638164 0.1108 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) : 08 38 01.72738933 +13 23 05.7250667 [ 0.0638164 0.1108 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) : 212.96798615814 +30.13860174646 [ 0.0638164 0.1108 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 : 0.243 0.373 [0.458 0.319 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) 142984 [21] / z(spectroscopic) 0.68038 [0.00007] / cz 203972.8 [21.0]    (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): 0.0000117 0.0000048 -2 (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 18.58 [~] D 2010A&A...518A..10V V 18.15 [~] D 2010A&A...518A..10V R 17.622 [~] D 2010ApJ...712..303C G 19.742435 [0.006320] C 2020yCat.1350....0G J 16.686 [0.158] C 2010AJ....139.2360S H 15.961 [0.141] C 2010AJ....139.2360S K 15.037 [0.117] C 2010AJ....139.2360S u (AB) 19.127 [0.023] C 2015ApJS..219...12A g (AB) 18.476 [0.007] B 2015ApJS..219...12A r (AB) 18.193 [0.007] B 2015ApJS..219...12A i (AB) 18.068 [0.008] B 2015ApJS..219...12A z (AB) 17.823 [0.017] C 2015ApJS..219...12A	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.

ICRF J084047.5+131223	IERS B0838+133	QSO B0838+133	2XMMi J084047.6+131223
BWE 0838+1323	IVS B0838+133	QSO B0838+133A	[BDW2002] q0838+1323
3C 207.0	1Jy 0838+133	QSO J0840+1312	[GW2008] CoNFIG 29
3C 207	1Jy 0838+13	RGB J0840.8+1312	[HB93] 0838+133A
4C 13.38	LEDA 2817595	RGB J0840+132	[KB2007] J084047.6+131223.7
3CR 207	2MASS J08404758+1312238	RX J0840.7+1312	[MGL2009] BZU J0840+1312
Cul 0837+133	2MASSI J0840475+131223	SDSS J084047.58+131223.5	[MML2015] 5BZU J0840+1312
CXOMP J084047.6+131223	MITG J084048+1312	TGSSADR J084047.6+131223	[S77] 120
DA 255	MRC 0838+133	TIC 21339227	[SRC2012b] J0840+1312
2E 2032	NAICGB 0838+133	TXS 0838+133	[VV2000] J084047.6+131223
2E 0838.0+1323	NAIC 0838+133	UT 0838+133	[VV2003] J084047.6+131223
EPIC 211504760	NEWPS5 J0840+1312	VCS2 J0840+1312	[VV2006] J084047.6+131223
1FGL J0840.8+1310	NRAO 300	VLSSr J084047.7+131224	[VV2010] J084047.6+131223
2FGL J0840.7+1310	NVSS J084047+131223	VSOP J0840+1312	[VV96] J084047.6+131223
3FGL J0840.8+1315	OHIO J 163	WB 0838+1323	[VV98] J084047.6+131223
4FGL J0840.8+1317	PKS J0840+1312	WISEA J084047.59+131223.4	[WTW94] 0838+133A
FIRST J084047.7+131223	PKS 0838+133	WISE J084047.59+131223.4	Gaia DR3 603117484006383488
GB6 J0840+1312	PKS 0838+13	WMAP 121	Gaia DR1 603117484006383488
GB6 B0838+1323	PLCKERC -857 G212.97+30.15	WMAP J0840+1312	Gaia DR2 603117484006383488
87GB 083801.7+132326	QSO B0838+1323	WMAP J0840+1313
GLEAM J084047+131225	QSO B0838+13	2XMM J084047.6+131223

References (424 between 1850 and 2023) (Total 424) 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 : 3C 207

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