IERS B1645+410

Query : IERS B1645+410

Basic data :
[VV98] J164656.9+405917 -- 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 (2019ApJS,BWE,...), QSO (2005ApJ,[VV98],...), Bla (2009A&A,[MGL2009],...), IR (WISEA,WISE), * (Gaia), Bz? ([SRM2005]), AGN (CGRaBS)
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 46 56.8587021 +40 59 17.172048 (Radio) [ 0.108 0.203 90 ] A 2016AJ....151..154G
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 45 18.2248119 +41 04 34.506176 [ 0.108 0.203 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) :
065.0625664860 +40.2644465022 [ 0.108 0.203 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 :
0.577 0.985 [0.554 0.532 90] A 2018yCat.1345....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) 162269 [~] / z(spectroscopic) 0.833000 [~] / cz 249727.12 [~]
   (Opt) D 2018A&A...613A..51P
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 (9) :
B 19.34 [~] D 2010A&A...518A..10V
V 19.20 [~] D 2010A&A...518A..10V
R 19.38 [~] D 2008ApJS..175...97H
G 19.2560 [0.0068] C 2018yCat.1345....0G
u (AB) 20.2033 [0.0448] C 2018A&A...613A..51P
g (AB) 19.440 [0.019] C 2014A&A...563A..54P
r (AB) 19.5622 [0.0179] C 2018A&A...613A..51P
i (AB) 19.763 [0.022] C 2014A&A...563A..54P
z (AB) 19.297 [0.057] C 2014A&A...563A..54P
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 Simbad points in this preview
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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!).
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Some important notes on this object about identifications and objects associations.
notes:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (34) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

[VV98] J164656.9+405917 ICRF J164656.8+405917 SDSS J164656.85+405917.1 [SRM2005] J164656.86+405917.1
BWE 1645+4104 IERS B1645+410 VCS1 J1646+4059 [VV2000] J164656.9+405917
CGRaBS J1646+4059 IVS B1645+410 WB 1645+4104 [VV2003] J164656.9+405917
CJ2 1645+410 JVAS J1646+4059 WISEA J164656.85+405917.1 [VV2006] J164656.9+405917
CJF B1645+410 JVAS B1645+410 WISE J164656.85+405917.1 [VV2010] J164656.9+405917
CLASS J164656.8601+405917.167 JVAS J1646+409 WN B1645.3+4104 Gaia DR1 1356181519085556608
FIRST J164656.8+405916 MITG J164658+4059 [CCH92] 1645.3+4104 Gaia DR2 1356181519085556608
GB6 B1645+4104 NVSS J164656+405917 [MGL2009] BZQ J1646+4059
87GB 164517.5+410426 S4 1645+41 [MML2015] 5BZQ J1646+4059

References (49 between 1850 and 2021) (Total 49)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 6    PM : 1   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : IERS B1645+410

Link by name to the catalogue in VizieR :

BWE 1645+4104 FIRST J164656.8+405916 IERS B1645+410 MITG J164658+4059 NVSS J164656+405917
SDSS J164656.85+405917.1 WISEA J164656.85+405917.1 WISE J164656.85+405917.1 WN B1645.3+4104 Gaia DR1 1356181519085556608
Gaia DR2 1356181519085556608

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Annotations :
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2021.09.18-12:21:15

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