ICRF J220417.6+044002

Basic data :
4C 04.77 -- BL Lac 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 (2020A&A,4C,...), AGN (2011ApJ,[VV2000c],...), G (2016A&A,LEDA,...), X (2009A&A,2E,...), Bla (2009A&A,[IN88],...), gam (1FGL,2FGL,...), BLL (2013AJ), QSO (2016A&A,QSO), Bz? (2015Ap&SS), BL? (2021MNRAS), * (Gaia), MIR (WISEA) 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) : 22 04 17.6521146096 +04 40 02.027503020 (Optical) [ 0.1494 0.1109 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) : 22 01 46.4727360589 +04 25 27.505449039 [ 0.1494 0.1109 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) : 064.7010733715977 -38.6313590719834 [ 0.1494 0.1109 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 : 0.173 -0.243 [0.163 0.154 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) 8181 [175] / z(~) 0.027672 [0.000584] / cz 8295.86 [175.08]    D 2002LEDA.........0P 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): 0.493 0.345 105 (NIR) C 2006AJ....131.1163S 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 (7) : B 16.20 [~] D 2010A&A...518A..10V V 15.2 [~] D 2010A&A...518A..10V R 10.2 [~] E 2009A&A...495..691M G 17.403748 [0.019983] C 2020yCat.1350....0G J 12.042 [0.029] C 2006AJ....131.1163S H 11.427 [0.040] C 2006AJ....131.1163S K 11.071 [0.045] C 2006AJ....131.1163S	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: has an optical jet (2000ApJ...542..731F) See also Specfind radio flux densities.

4C 04.77	ICRF J220417.6+044002	RC J2204+0442	Z 2201.8+0425
BWE 2201+0425	IERS B2201+044	RGB J2204.3+0440	[ATZ98] F029
CLASS J220417.6569+044002.012	IVS B2201+044	RGB J2204+046	[HVG99b] 22018+0425
CLASS J220417.6499+044002.015	JVAS J2204+0440	RX J2204.2+0439	[IN88] 2201+044
CRATES J220416+044003	LEDA 67974	1RXS J220417.7+043957	[MGL2009] BZU J2204+0440
Cul 2201+044	2MASX J22041766+0440021	S2 2201+04	[MML2015] 5BZU J2204+0440
2E 4563	MITG J220418+0440	TGSSADR J220416.5+044009	[VV2000c] J220417.7+044002
2E 2201.7+0425	MRC 2201+044	TXS 2201+044	[VV2003c] J220417.7+044002
1FGL J2204.6+0442	NVSS J220417+044002	UZC J220417.7+044001	[VV2006c] J220417.7+044002
2FGL J2204.6+0442	OHIO Y 003	VLSSr J220416.7+044013	[VV2010c] J220417.7+044002
3FGL J2204.4+0439	PKS 2201+04	VLSS J2204.2+0440	[VV98c] J220417.7+044002
4FGL J2204.3+0438	PKS 2201+044	WB 2201+0425	[ZEH2003] RX J2204.2+0439 4
GB6 B2201+0425	PKS J2204+0440	WISEA J220417.65+044002.0	Gaia DR3 2696140813549252352
87GB 220146.1+042535	PMN J2204+0440	Zel 2201+044	Gaia DR1 2696140809253695232
1H 2158+046	QSO B2201+044	Z 403-19	Gaia DR2 2696140813549252352

References (207 between 1850 and 2024) (Total 207) 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 : ICRF J220417.6+044002

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