3C 186

Basic data :
3C 186 -- 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,6C,...), QSO (2011MNRAS,QSO,...), * (USNO,Gaia), MIR (WISEA,WISE), Q? (FBQS), G (LEDA), X (2E), UV (GALEX), 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) : 07 44 17.4720658920 +37 53 17.250697320 (Optical) [ 0.0810 0.0647 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) : 07 40 56.7706703948 +38 00 31.076133121 [ 0.0810 0.0647 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) : 181.7868622341703 +26.1408679564889 [ 0.0810 0.0647 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 : 0.079 0.100 [0.098 0.068 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) 185940 [45] / z(spectroscopic) 1.06551 [0.00015] / cz 319431.9 [45.0]    (Opt) C 2015ApJS..219...12A 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): 0.2714 [0.1005] 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 17.5 [0.35] D 1998USNO2.C......0M V 18.14 [~] D 2010A&A...518A..10V R 17.2 [0.35] D 1998USNO2.C......0M G 17.376040 [0.004711] C 2020yCat.1350....0G u (AB) 18.444 [0.015] C 2015ApJS..219...12A g (AB) 18.179 [0.006] B 2015ApJS..219...12A r (AB) 17.853 [0.006] B 2015ApJS..219...12A i (AB) 17.888 [0.008] B 2015ApJS..219...12A z (AB) 17.971 [0.023] 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.

6C 074056+380030	FBQS J0744+3753	QSO J0744+3753	WN B0740.9+3800
B2 0740+38 B	FIRST J074417.4+375317	QSO B0740+38	[BDW2002] q0740+3800
B2.3 0740+38 B	GALEX J074417.4+375317	QSO B0740+3800	[GW2008] CoNFIG 277
B3 0740+380C	GB2 0740+380	QSO B0740+380	[HB93] 0740+380
B3VLA 0740+380C	GB6 B0740+3800	S4 0740+38	[S77] 102
BWE 0740+3800	87GB 074056.3+380027	S4 0740+380	[VV2000] J074417.4+375317
3C 186	GRA B0741+37	SDSS J074417.47+375317.2	[VV2003] J074417.4+375317
3C 186.0	LEDA 2817581	TGSSADR J074417.5+375316	[VV2006] J074417.4+375317
4C 38.21	LHE 208	TXS 0740+380	[VV2010] J074417.4+375317
7C 074056.70+380030.00	MITG J074419+3753	USNO-A2.0 1275-07044610	[VV96] J074417.4+375317
3CR 186	MY 074056.7+380032.5	UT 0740+380	[VV98] J074417.4+375317
Cul 0740+379	MY 074056.7+375318.7	VLSS J0744.2+3753	[WTW94] 0740+380
DB 49	NRAO 273	WB 0740+3800	Gaia DR3 919952965120774528
2E 1863	NVSS J074417+375316	WISEA J074417.48+375317.3	Gaia DR2 919952965120774528
2E 0740.9+3800	OHIO I 368	WISE J074417.48+375317.3

References (319 between 1850 and 2024) (Total 319) 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 186

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