IERS B0812+020

Basic data :
ICRF J081522.9+015459 -- 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 (2014ApJS,ICRF,...), QSO (2015MNRAS,QSO,...), Opt (ATO,LAMOST,...), X (RX,1RXS), MIR (WISEA,WISE), AGN (2020MNRAS), V* (2018AJ), 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) : 08 15 22.96082943 +01 54 59.4809821 (Radio) [ 0.0521708 0.0563 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 12 47.28387808 +02 04 12.9355319 [ 0.0521708 0.0563 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) : 221.07078046407 +19.50045229404 [ 0.0521708 0.0563 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 : 0.071 -0.245 [0.091 0.071 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) 97230 [~] / z(spectroscopic) 0.40 [~] / cz 119917 [~]    (Opt) D 2017ApJS..233....3T 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 (11) : B 17.28 [~] D 2010A&A...518A..10V V 17.10 [~] D 2010A&A...518A..10V G 17.385908 [0.011011] C 2020yCat.1350....0G J 15.773 [0.084] C 2003yCat.2246....0C H 14.919 [0.081] C 2003yCat.2246....0C K 14.162 [0.071] C 2003yCat.2246....0C u (AB) 16.680 [0.007] B 2012ApJS..203...21A g (AB) 16.477 [0.004] B 2012ApJS..203...21A r (AB) 16.648 [0.004] B 2012ApJS..203...21A i (AB) 16.591 [0.005] B 2012ApJS..203...21A z (AB) 16.276 [0.007] B 2012ApJS..203...21A	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 J081522.9+015459	2MASS J08152296+0154595	QSO B0812+0204	[S77] 108
ATO J123.8456+01.9165	MITG J081523+0154	RGB J0815.4+0154	[VV2000] J081523.0+015458
BWE 0812+0204	MRC 0812+020	RGB J0815+019	[VV2003] J081523.0+015458
4C 02.23	MSH 08+0-02	RX J0815.4+0156	[VV2006] J081523.0+015458
DW 0812+02	NVSS J081522+015505	1RXS J081523.2+015500	[VV2010] J081523.0+015458
GB6 B0812+0204	OHIO J 021	SDSS J081522.96+015459.5	[VV96] J081523.0+015458
87GB 081248.0+020414	PKS 0812+020	TIC 455132894	[VV98] J081523.0+015458
GRA B0813+01	PKS J0815+0154	TXS 0812+020	Gaia DR3 3089999759954211200
IERS B0812+020	PKS 0812+02	WB 0812+0204	Gaia DR2 3089999759954211200
IVS B0812+020	PMN J0815+0155a	WISEA J081522.96+015459.5
LAMOST J081522.95+015459.9	QSO B0812+02	WISE J081522.96+015459.5
LEDA 2818423	QSO B0812+020	[HB93] 0812+020

References (131 between 1850 and 2023) (Total 131) 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 B0812+020

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object

Store this result in Votable, in Ascii, or in the CDS portal

To bookmark this query, right click on this link: simbad:IERS B0812+020 and select 'bookmark this link' or equivalent in the popup menu