4C 38.41

Basic data :
4C 38.41 -- 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,4C,...), QSO (2009ApJS,QSO,...), gam (2EG,3EG,...), Bla (2009A&A,RBPL,...), AGN (2007AJ,CGRaBS,...), Q? (FBQS,[CCH90],...), X (2007AJ,1RXS), MIR (WISEA,WISE), G (LEDA), * (Gaia), NIR (2MASS), 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) : 16 35 15.49297809 +38 08 04.5005995 (Radio) [ 0.0313838 0.032 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) : 16 33 30.63643325 +38 14 10.1419886 [ 0.0313838 0.032 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) : 061.08558905454 +42.33640229177 [ 0.0313838 0.032 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 : 0.117 0.040 [0.055 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) 232563 [45] / z(spectroscopic) 1.81397 [0.00015] / cz 543814.5 [45.0]    (Opt) C 2015ApJS..219...12A 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 18.14 [~] D 2010A&A...518A..10V V 17.97 [~] D 2010A&A...518A..10V R 17.25 [~] D 2008ApJS..175...97H G 17.382990 [0.019258] C 2020yCat.1350....0G J 16.183 [0.096] C 2010AJ....139.2360S H 15.499 [0.123] C 2010AJ....139.2360S K 15.003 [0.107] C 2010AJ....139.2360S u (AB) 17.801 [0.013] C 2015ApJS..219...12A g (AB) 17.656 [0.005] B 2015ApJS..219...12A r (AB) 17.626 [0.006] B 2015ApJS..219...12A i (AB) 17.374 [0.007] B 2015ApJS..219...12A z (AB) 17.272 [0.014] 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.

4C 38.41	GB6 B1633+3814	QSO B1633+3814	9Y-MST J1635+3808
B2 1633+38	87GB 163330.1+381419	QSO J1635+3808	[CCH90] 1633.5+3814
B2.3 1633+38	GeV J1636+3812	QSO B1633+38	[CCS88] 1633.5+3814
B3 1633+382	GRO J1635+38	QSO B1633+382	[DGT2001] B1633+382
BWE 1633+3814	ICRF J163515.4+380804	RBPL J1635+3808	[GW2008] CoNFIG 256
6C 163330+381410	IERS B1633+382	RORF 1633+382	[HB93] 1633+382
7C 163330.69+381410.00	INTREF 707	1RXS J163520.4+380753	[MGL2009] BZQ J1635+3808
CGRaBS J1635+3808	IVS B1633+382	S4 1633+38	[MML2015] 5BZQ J1635+3808
CJ1 1633+382	IVS B1633+38	S4 1633+382	[P82] 1633+382
CJF B1633+382	JVAS J1635+381	SDSS J163515.50+380804.4	[PD95] 1
CLASS J163515.4930+380804.496	JVAS B1633+382	SDSS J163515.49+380804.4	[PW82] 1633+38
2EG J1635+3813	JVAS J1635+3808	TIC 392388175	[S77] 333
3EG J1635+3813	1Jy 1633+382	TXS 1633+382	[SRC2012b] J1635+3808
EGR J1635+3825	1Jy 1633+38	UT 1633+382	[VV2000] J163515.5+380803
FBQS J1635+3808	LEDA 2820574	VIPS J16352+3808	[VV2003] J163515.5+380803
0FGL J1635.2+3809	MASIV J1635+3808	VIPS 994	[VV2006] J163515.5+380803
1FGL J1635.0+3808	2MASS J16351549+3808044	VLSS J1635.2+3808	[VV2010] J163515.5+380803
2FGL J1635.2+3810	MITG J163512+3808	VSOP J1635+3808	[VV96] J163515.5+380803
3FGL J1635.2+3809	MITG J163513+3808	WB 1633+3814	[VV98] J163515.5+380803
4FGL J1635.2+3808	MITG J163519+3807	WISEA J163515.49+380804.5	[WCO2009] J163505+380811
1FHL J1635.0+3808	MY 163330.5+380801.9	WISE J163515.50+380804.5	[WTW94] 1633+382
3FHL J1635.2+3808	NEWPS5 J1635+3808	WISE J163515.49+380804.5	Gaia DR3 1331488308992280576
FIRST J163515.4+380804	NVSS J163515+380804	WMAP 33	Gaia DR1 1331488308992280576
1FLE J1636+3831	OHIO S 356	WMAP J1635+3807	Gaia DR2 1331488308992280576
GB2 1633+382	PCCS1 030 G061.07+42.34	WMAP J1635+3808
GB6 J1635+3808	PKS 1633+382	WN B1633.5+3814

References (825 between 1850 and 2023) (Total 825) 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

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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 4C 38.41

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