3C 287

Basic data :
3C 287 -- 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,3C,...), QSO (2010A&A,QSO,...), IR (2MASS,2MASSI,...), X (2E,RX), Q? (FBQS), G (LEDA), * (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) : 13 30 37.6960744824 +25 09 10.983105972 (Optical) [ 0.0885 0.0605 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) : 13 28 15.9391943044 +25 24 37.700379594 [ 0.0885 0.0605 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) : 022.4682732033750 +80.9882635645472 [ 0.0885 0.0605 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 : -0.286 0.071 [0.145 0.066 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) 184925 [123] / z(spectroscopic) 1.05422 [0.00041] / cz 316047.2 [122.9]    C 2009ApJS..182..543A 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): 0.0106 [0.1201] 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 (10) : B 18.31 [~] D 2010A&A...518A..10V V 17.67 [~] D 2010A&A...518A..10V G 17.982306 [0.003111] C 2020yCat.1350....0G J 16.440 [0.137] C 2010AJ....139.2360S H 16.057 [0.186] C 2010AJ....139.2360S u (AB) 18.6649 [0.0221] C 2020ApJS..250....8L g (AB) 18.3629 [0.0278] C 2020ApJS..250....8L r (AB) 18.0065 [0.0221] C 2020ApJS..250....8L i (AB) 17.9365 [0.0239] C 2020ApJS..250....8L z (AB) 17.8353 [0.0273] 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.

3C 287	ICRF J133037.6+250910	QSO B1328+27	[GW2008] CoNFIG 168
B2 1328+25 A	IVS B1328+254	QSO B1328+254	[HB93] 1328+254
B2.2 1328+25 A	1Jy 1328+254	RGB J1330+251	[P82] 1328+254
BWE 1328+2525	1Jy 1328+25	RORF 1328+254	[S77] 265
3C 287.0	LEDA 2817651	RX J1330.6+2508	[SJS95] 1328+254
4C 25.43	LHE 347	RX J1330.6+2509	[VV2000] J133037.7+250911
3CR 287	2MASS J13303769+2509106	S3 1328+25	[VV2003] J133037.7+250911
CTA 61	2MASSI J1330376+250910	SDSS J133037.69+250910.9	[VV2006] J133037.7+250911
CTD 81	MITG J133038+2509	TIC 368128015	[VV2010] J133037.7+250910
Cul 1328+254	NRAO 424	TXS 1328+254	[VV96] J133037.7+250911
DA 345	NVSS J133037+250911	UT 1328+254	[VV98] J133037.7+250911
2E 3073	OHIO P 247	VCS2 J1330+2509	[W72] 1328+25
2E 1328.2+2524	PKS 1328+25	VRO 25.13.02	[WTW94] 1328+254
FBQS J1330+2509	PKS J1330+2509	WB 1328+2525	Gaia DR3 1447960331635942528
FIRST J133037.6+250910	PKS 1328+254	WISEA J133037.67+250910.5	Gaia DR1 1447960331635942528
GB6 B1328+2524	QSO J1330+2509	WISE J133037.67+250910.5	Gaia DR2 1447960331635942528
87GB 132815.5+252507	QSO B1328+2524	WK 324

References (343 between 1850 and 2022) (Total 343) 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 287

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