IERS B0902+490

Query : IERS B0902+490

Basic data :
6C 090200+490251 -- 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 (2020A&A,6C,...), QSO (2008ApJ,QSO,...), AGN (2020MNRAS), G (LEDA), * (Gaia), IR (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 05 27.4638219840 +48 50 49.966312452 (Optical) [ 0.0555 0.0450 90 ] A 2020yCat.1350....0G
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 02 00.3728834698 +49 02 49.935658143 [ 0.0555 0.0450 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) :
170.3372714335447 +41.8077764083540 [ 0.0555 0.0450 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 :
-0.023 -0.014 [0.068 0.053 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) 258689 [57] / z(spectroscopic) 2.68606 [0.00019] / cz 805260.5 [57.0]
   (Opt) C 2012ApJS..203...21A
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 (11) :
B 17.92 [~] D 2010A&A...518A..10V
V 17.71 [~] D 2010A&A...518A..10V
G 17.262779 [0.002982] C 2020yCat.1350....0G
J 16.170 [0.087] C 2010AJ....139.2360S
H 15.296 [0.102] C 2010AJ....139.2360S
K 15.077 [0.122] C 2010AJ....139.2360S
u (AB) 18.2926 [0.0236] C 2020ApJS..250....8L
g (AB) 17.5575 [0.0117] C 2020ApJS..250....8L
r (AB) 17.5109 [0.0133] C 2020ApJS..250....8L
i (AB) 17.3975 [0.0134] C 2020ApJS..250....8L
z (AB) 17.2428 [0.0281] C 2020ApJS..250....8L
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 (43) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

6C 090200+490251 87GB 090200.8+490245 NVSS J090527+485049 WN B0902.0+4902
BP 89 Gopal 0902+490 QSO B0902+490 [VV2000] J090527.5+485051
BWE 0902+4902 ICRF J090527.4+485049 S4 0902+490 [VV2003] J090527.5+485051
6C 090201+490243 IERS B0902+490 S4 0902+49 [VV2006] J090527.5+485051
7C 090200.29+490249.00 IVS B0902+490 SDSS J090527.46+485049.9 [VV2010] J090527.5+485051
CJ2 0902+490 JVAS B0902+490 SDSS J090527.46+485050.2 [VV96] J090527.5+485051
CJF B0902+490 JVAS J0905+4850 TIC 457131492 [VV98] J090527.5+485051
CLASS J090527.4612+485049.956 JVAS J0905+488 TXS 0902+490 Gaia DR3 1012686978397952384
FIRST J090527.4+485049 LEDA 3084704 VCS1 J0905+4850 Gaia DR1 1012686974102024832
GB1 0902+490 2MASS J09052746+4850499 VLSS J0905.4+4850 Gaia DR2 1012686978397952384
GB6 B0902+4902 MY 090201.3+485053.8 WB 0902+4902

References (82 between 1850 and 2023) (Total 82)
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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                Reference summaries :

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Collections of Measurements


velocities : 12    PM : 2   

   

Observing logs


herschel : 1   

   


External archives :

Data at NED - NASA/IPAC Extragalactic Database : IERS B0902+490

Link by name to the catalogue in VizieR :

BWE 0902+4902 FIRST J090527.4+485049 IERS B0902+490 2MASS J09052746+4850499 NVSS J090527+485049
SDSS J090527.46+485049.9 SDSS J090527.46+485050.2 WN B0902.0+4902 Gaia DR3 1012686978397952384 Gaia DR1 1012686974102024832
Gaia DR2 1012686978397952384

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Annotations :
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Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

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2022.12.05-05:44:13

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