IERS B1800+440

Basic data :
7C 180003.10+440418.00 -- 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,7C,...), QSO (2010A&A,QSO,...), Bla (2009A&A,[MGL2009],...), AGN (2011ApJ,CGRaBS), gam (2FGL,3FGL,...), X (2009A&A,RX), MIR (WISEA,WISE), * (Gaia), NIR (2MASS), IR (2MASSI) 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) : 18 01 32.31481983 +44 04 21.9002442 (Radio) [ 0.032115 0.0338 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) : 18 00 03.21240305 +44 04 18.3569345 [ 0.032115 0.0338 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) : 070.94286944846 +27.08362279719 [ 0.032115 0.0338 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 : -0.131 0.274 [0.076 0.075 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) 140142 [~] / z(spectroscopic) 0.66 [~] / cz 197863 [~]    (Opt) D 2017ApJS..233....3T 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): 0.0000090 0.0000055 6 (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 (5) : B 16.8 [~] E ~ V 17.90 [~] D 2010ApJ...710..764K R 15.29 [~] D 2008ApJS..175...97H G 17.296421 [0.030833] C 2020yCat.1350....0G K 14.731 [0.099] C 2003yCat.2246....0C	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.

7C 180003.10+440418.00	JVAS J1801+440	RORF 1800+440	[HB93] 1800+440
B3 1800+440	1Jy 1800+440	RX J1801.5+4404	[MGL2009] BZQ J1801+4404
BWE 1800+4404	1Jy 1800+44	S4 1800+44	[MML2015] 5BZQ J1801+4404
CGRaBS J1801+4404	2MASS J18013232+4404217	S4 1800+440	[P82] 1800+440
CJ1 1800+440	2MASSI J1801323+440421	TIC 193883599	[VV2000] J180132.4+440422
CJF B1800+440	MITG J180133+4404	TXS 1800+440	[VV2003] J180132.4+440422
CLASS J180132.3126+440421.899	MY 180004.4+440421.3	VLSS J1801.5+4404	[VV2006] J180132.4+440422
2FGL J1801.7+4405	MY 180004.4+440424.9	VSOP J1801+4404	[VV2010] J180132.4+440422
3FGL J1801.5+4403	NEWPS5 J1801+4404	WB 1800+4404	[VV96] J180132.4+440422
4FGL J1801.5+4404	NVSS J180132+440420	WISEA J180132.32+440421.7	[VV98] J180132.4+440422
GB6 J1801+4404	OHIO U 401	WISE J180132.33+440421.8	Gaia DR3 2114376184658724864
87GB 180003.8+440403	QSO B1800+440	WISE J180132.32+440421.7	Gaia DR1 2114376184658724864
ICRF J180132.3+440421	QSO B1800+4404	WMAP J1801+4404	Gaia DR2 2114376184658724864
IERS B1800+440	QSO J1801+4404	WMAP J1801+4403
IVS B1800+440	RGB J1801+440	WN B1800.0+4404
JVAS B1800+440	RGB J1801.5+4404	9Y-MST J1801+4402

References (193 between 1850 and 2023) (Total 193) 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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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1800+440

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