S4 0636+68

Query : S4 0636+68
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.16CET01:21:27

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


Basic data :
QSO B0636+68 -- 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 (BWE,CJ2,...), QSO (Ref,QSO,...), Bla (Ref,[MGL2009],...), IR (2MASS,WISE), gam (INTREF), * (Gaia), Bz? ([SRM2005]), AGN (CGRaBS), X (Ref)
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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
06 42 04.2573625 +67 58 35.621387 [ 0.1 0.199 90 ] A 2016A&A...595A...1G
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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
06 36 47.6161131 +68 01 27.219837 [ 0.2 0.100 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] : coordinates error major axis, minor axis (in mas at defined epoch and convolved with error on propermotion),
    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) :
147.1744392057 +24.1467190766 [ 0.2 0.100 0 ]
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) 267297 [~] / z(~) 3.1775 [~] / cz 952591 [~]
   D 2006ApJ...636...30K
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 (6) :
V 16.46 [~] D ~
R 16.01 [~] D 2008ApJS..175...97H
G 16.412 [~] D 2016A&A...595A...1G
J 14.951 [0.039] C 2003yCat.2246....0C
H 14.431 [0.060] C 2003yCat.2246....0C
K 13.746 [0.047] C 2003yCat.2246....0C
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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 (44) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B0636+68 IVS B0636+680 RORF 0636+680 [ODS2007] HFP J0642+6758
BWE 0636+6801 JVAS J0642+6758 S4 0636+68 [P82] 0636+680
CGRaBS J0642+6758 JVAS B0636+680 S4 0636+680 [S98b] 0636+680
CJ2 0636+680 JVAS J0642+679 WB 0636+6801 [SRM2005] J064204.25+675835.5
CJF B0636+680 KODIAQ J064204+675835 WISE J064204.25+675835.6 [VV2000] J064204.0+675836
GB6 B0636+6801 2MASS J06420423+6758355 WN B0636.7+6801 [VV2003] J064204.0+675836
87GB 063648.1+680123 NRRF J064204.1+675836 [HB93] 0636+680 [VV2006] J064204.0+675836
Gopal 0636+680 NVSS J064204+675835 [HMI96] 0636+6801 [VV2010] J064204.0+675836
ICRF J064204.2+675835 QSO B0636+6801 [LWT91] 0636+6801 [VV96] J064204.0+675836
IERS B0636+680 QSO J0642+6758 [MGL2009] BZQ J0642+6758 [VV98] J064204.0+675836
INTREF 312 QSO B0636+680 [MGL2015] 5BZQ J0642+6758 Gaia DR1 1105880170923302912

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References (194 between 1850 and 2019) (Total 194)
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 : 4   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : S4 0636+68

Link by name to the catalogue in VizieR :

BWE 0636+6801 IERS B0636+680 2MASS J06420423+6758355 NVSS J064204+675835 WISE J064204.25+675835.6
WN B0636.7+6801 Gaia DR1 1105880170923302912

Search by coordinates in Vizier (radius: 5 arcsec)


Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

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2018.11.16-01:21:27

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