IERS B0945+408

Basic data :
4C 40.24 -- 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 (2010AJ,4C,...), QSO (2005ApJ,QSO,...), X (2007AJ,PBC,...), Bla (2009A&A,[DGT2001],...), AGN (2007AJ,CGRaBS), gam (2FGL,3FGL,...), Q? (2021MNRAS,FBQS), Bz? ([SRM2005]), AG? (2022ApJS), G (LEDA), * (Gaia), UV (KUV), NIR (2MASS), MIR (WISE), 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) : 09 48 55.33815103 +40 39 44.5869471 (Radio) [ 0.0402797 0.0457 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) : 09 45 50.08003047 +40 53 43.4799760 [ 0.0402797 0.0457 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) : 180.99242396165 +50.28448949085 [ 0.0402797 0.0457 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 : -0.057 -0.153 [0.117 0.129 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) 200912 [33] / z(spectroscopic) 1.25027 [0.00011] / cz 374821.5 [33.0]    (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): 0.019 [0.1297] A 2020yCat.1350....0G 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): 0.0000120 0.0000050 -14 (Rad) D 2010AJ....139.1713C 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 18.31 [~] D 2010A&A...518A..10V V 18.02 [~] D 2010A&A...518A..10V R 17.85 [~] D 2008ApJS..175...97H G 18.066772 [0.005161] C 2020yCat.1350....0G J 16.708 [0.160] C 2010AJ....139.2360S H 16.186 [0.244] C 2010AJ....139.2360S K 15.383 [0.199] C 2010AJ....139.2360S u (AB) 17.756 [0.010] C 2015ApJS..219...12A g (AB) 17.838 [0.005] B 2015ApJS..219...12A r (AB) 17.599 [0.006] B 2015ApJS..219...12A i (AB) 17.513 [0.007] B 2015ApJS..219...12A z (AB) 17.533 [0.016] 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 40.24	IVS B0945+408	RGB J0948.9+4039	WISE J094855.34+403944.5
B3 0945+408	JVAS B0945+408	RGB J0948+406	WMAP J0948+4039
B3VLA 0945+408	JVAS J0948+4039	RORF 0945+408	WN B0945.8+4053
BWE 0945+4053	JVAS J0948+406	RX J0948.9+4039	[BDW2002] q0945+4053
7C 094550.20+405345.00	1Jy 0945+408	1RXS J094856.5+403959	[DGT2001] B0945+408
CGRaBS J0948+4039	1Jy 0945+40	S4 0945+408	[GW2008] CoNFIG 58
CJF B0945+408	KUV 09458+4054	S4 0945+40	[HB93] 0945+408
CLASS J094855.3408+403944.582	LEDA 2820660	SDSS J094855.33+403944.6	[MGL2009] BZQ J0948+4039
CRATES J094855+403956	MASIV J0948+4039	SDSS J094855.34+403944.6	[MML2015] 5BZQ J0948+4039
DA 273	2MASS J09485528+4039446	TGSSADR J094855.3+403945	[P82] 0945+408
FBQS J0948+4039	MY 094549.9+405333.2	TIC 17257863	[SRM2005] J094855.34+403944.5
2FGL J0948.8+4040	MY 094549.9+403934.3	TXS 0945+408	[VV2000] J094855.3+403944
3FGL J0948.6+4041	NVSS J094855+403944	UT 0945+408	[VV2003] J094855.3+403944
4FGL J0949.0+4038	OHIO K 476	VIPS J09489+4039	[VV2006] J094855.3+403944
FIRST J094855.3+403944	PBC J0949.2+4036	VLSSr J094855.5+403946	[VV2010] J094855.3+403944
GB6 B0945+4053	PCCS1 030 G181.02+50.29	VLSS J0948.9+4039	[VV96] J094855.3+403944
87GB 094550.5+405350	QSO B0945+40	VRO 40.09.02	[VV98] J094855.3+403944
GRA B0946+40	QSO B0945+408	VSOP J0948+4039	Gaia DR3 801336924865881728
GRA J0949+40	QSO B0945+4053	WB 0945+4053	Gaia DR1 801336924865881728
ICRF J094855.3+403944	QSO J0948+4039	1WGA J0948.9+4039	Gaia DR2 801336924865881728
IERS B0945+408	RFC J0948+4039	WISE J094855.34+403944.6

References (351 between 1850 and 2024) (Total 351) 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 B0945+408

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