IERS B0917+449

Basic data :
6C 091740+445437 -- Blazar 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,6C,...), QSO (2010ApJ,QSO,...), gam (2EG,3EG,...), Bla (2009A&A,[DGT2001],...), AGN (2007AJ,CGRaBS,...), X (2007AJ,RX,...), Opt (ATO,LAMOST,...), MIR (WISEA,WISE), Q? (2021MNRAS), AG? (2022ApJS), V* (2018AJ), * (Gaia), NIR (2MASS) 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 20 58.45848666 +44 41 53.9850947 (Radio) [ 0.0367849 0.0432 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 17 41.91905978 +44 54 39.7106084 [ 0.0367849 0.0432 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) : 175.70033556889 +44.81553353426 [ 0.0367849 0.0432 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 : 0.067 -0.108 [0.092 0.070 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) 246078 [30] / z(spectroscopic) 2.18786 [0.00010] / cz 655903.9 [30.0]    (Opt) C 2020ApJS..249....3A 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 18.40 [~] D 2010A&A...518A..10V V 18.16 [~] D 2010A&A...518A..10V R 16.55 [~] D 2008ApJS..175...97H G 17.576729 [0.011730] C 2020yCat.1350....0G J 16.898 [0.189] C 2010AJ....139.2360S H 16.246 [0.228] C 2010AJ....139.2360S K 15.430 [0.204] C 2010AJ....139.2360S u (AB) 18.688 [0.018] C 2020ApJS..249....3A g (AB) 18.047 [0.006] B 2020ApJS..249....3A r (AB) 17.910 [0.007] B 2020ApJS..249....3A i (AB) 17.707 [0.007] B 2020ApJS..249....3A z (AB) 17.433 [0.014] C 2020ApJS..249....3A	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.

6C 091740+445437	GB6 J0920+4441	RGB J0920+446	WMAP J0920+4440
ATO J140.2435+44.6983	87GB 091742.6+445418	RORF 0917+449	WMAP J0920+4441
B3 0917+449	ICRF J092058.4+444153	RX J0920.9+4441	WMAP J0920+4439
BWE 0917+4454	IERS B0917+449	RX J0920.9+4442	WN B0917.6+4454
7C 091741.89+445438.00	INTREF 383	1RXS J092057.9+444200	9Y-MST J0920+4441
CGRaBS J0920+4441	IVS B0917+449	S4 0917+44	[DGT2001] B0917+449
CJ1 0917+449	JVAS J0920+4441	S4 0917+449	[HB93] 0917+449
CJF B0917+449	JVAS B0917+449	SDSS J092058.46+444154.0	[MGL2009] BZQ J0920+4441
CLASS J092058.4598+444153.987	JVAS J0920+446	SDSS J092058.45+444154.0	[MML2015] 5BZQ J0920+4441
CRATES J092058+444144	LAMOST J092058.46+444154.0	TGSSADR J092058.3+444153	[P82] 0917+449
2EG J0917+4420	MASIV J0920+4441	TIC 56935730	[SRC2012b] J0920+4441
3EG J0917+4427	2MASS J09205847+4441540	TXS 0917+449	[VV2000] J092058.4+444153
EGR J0918+4451	MY 091742.5+445431.9	VIPS J09209+4441	[VV2003] J092058.4+444153
0FGL J0921.2+4437	MY 091742.5+444146.1	VIPS 214	[VV2006] J092058.4+444153
1FGL J0920.9+4441	NEWPS5 J0920+4441	VLSSr J092058.5+444159	[VV2010] J092058.4+444153
2FGL J0920.9+4441	NVSS J092058+444153	VLSS J0920.9+4441	[VV96] J092058.4+444153
3FGL J0920.9+4442	PCCS1 030 G175.72+44.81	VSOP J0920+4441	[VV98] J092058.4+444153
4FGL J0920.9+4441	PCCS2 143 G175.67+44.82	WB 0917+4454	[ZEH2003] RX J0920.9+4442 2
1FHL J0920.9+4443	PLCKERC -857 G175.69+44.81	1WGA J0920.9+4441	Gaia DR3 818697217035606272
3FHL J0920.8+4442	QSO B0917+449	WISEA J092058.45+444154.0	Gaia DR1 818697217035606272
FIRST J092058.4+444153	QSO J0920+4441	WISE J092058.46+444154.1	Gaia DR2 818697217035606272
1FLE J0921+4425	RFC J0920+4441	WISE J092058.45+444154.0
GB6 B0917+4454	RGB J0921.0+4441	WK 163

References (378 between 1850 and 2024) (Total 378) 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 B0917+449

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