3C 208

Query : 3C 208
C.D.S. - SIMBAD4 rel 1.7 - 2020.04.01CEST22:15:36

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
3C 208 -- 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 (Ref,3C,...), QSO (Ref,2014A&A...563A..54P,...), X (2E,RX), * (Gaia), G (LEDA), IR (WISE)
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) :
08 53 08.6094064845 +13 52 54.843245472 (Optical) [ 0.0980 0.0587 90 ] A 2018yCat.1345....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) :
08 50 22.6949112227 +14 04 17.537179296 [ 0.0980 0.0587 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) :
213.6609930331452 +33.1582547312944 [ 0.0980 0.0587 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 :
-0.210 0.242 [0.205 0.124 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) 190065 [34] / z(spectroscopic) 1.112897 [0.000115] / cz 333638.13 [34.48]
   (Opt) C 2017A&A...597A..79P
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 (8) :
B 17.76 [~] D 2010A&A...518A..10V
V 17.42 [~] D 2010A&A...518A..10V
G 17.1547 [0.0022] C 2018yCat.1345....0G
u (AB) 18.099 [0.017] C 2014A&A...563A..54P
g (AB) 18.067 [0.006] B 2009yCat.2294....0A
r (AB) 17.728 [0.006] B 2009yCat.2294....0A
i (AB) 17.672 [0.006] B 2009yCat.2294....0A
z (AB) 17.768 [0.025] C 2014A&A...563A..54P
SIMBAD with radius arcmin
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within radius 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:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (41) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

3C 208 MRC 0850+140 RX J0853.1+1352 [VV2000] J085308.6+135254
BWE 0850+1404 NRAO 301 S3 0850+14 [VV2003] J085308.6+135254
3C 208.0 NVSS J085308+135255 SDSS J085308.60+135254.8 [VV2006] J085308.6+135254
4C 14.28 OHIO J 184 SDSS J085308.61+135254.8 [VV2010] J085308.6+135254
3CR 208 OHIO A 257 UT 0850+140 [VV96] J085308.6+135254
Cul 0850+140 PKS 0850+140 WB 0850+1404 [VV98] J085308.6+135254
DA 257 PKS 0850+14 WISE J085308.60+135254.8 [WTW94] 0850+140
2E 2068 PKS J0853+1352 [GW2008] CoNFIG 33 Gaia DR2 608634081735508608
2E 0850.3+1404 QSO B0850+140 [HB93] 0850+140
87GB 085022.9+140416 QSO B0850+1404 [RLM94] 0850+140
LEDA 2817596 RGB J0853.1+1352 [S77] 126

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References (232 between 1850 and 2020) (Total 232)
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 : 10    PM : 1   

   

Observing logs


herschel : 3   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 3C 208

Link by name to the catalogue in VizieR :

3C 208 BWE 0850+1404 3C 208.0 4C 14.28 3CR 208
2E 2068 NVSS J085308+135255 PKS 0850+140 PKS 0850+14 PKS J0853+1352
SDSS J085308.60+135254.8 SDSS J085308.61+135254.8 WISE J085308.60+135254.8 Gaia DR2 608634081735508608

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The list of all annotations to SIMBAD objects can be found here .

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2020.04.01-22:15:36

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