4C 45.51

Query : 4C 45.51 C.D.S. - SIMBAD4 rel 1.225 - 2015.09.03CEST14:50:08

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


Basic data :
4C 45.51 -- 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 (4C,B3,BWE,CJ1,CJF,GB6​,87GB,ICRF,IERS,IVS​,JVAS,1Jy,MITG,MY​,NEWPS5,NVSS,OHIO,RORF​,S4,TXS,VSOP,WB,WMAP,WN,[PW82]), QSO (Ref,QSO,[HB93],[VV2000],[VV2003],[VV2006]​,[VV2010],[VV96],[VV98]), gam (3EG,EGR,INTREF), Bla (Ref,[MGL2009]), G (LEDA)
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
23 54 21.67973 +45 53 04.2397 ( Radio ) [ 12 12 90 ] B 1992MNRAS.254..655P
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 epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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
FK5 coord. (ep=J2000 eq=2000) :
23 54 21.680 +45 53 04.24 [ 12 12 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
23 51 49.98 +45 36 22.7 [ 12 12 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
112.6582 -15.8456 [ 12 12 90 ]
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) 239327 [~] / z(~) 1.986 [~] / cz 595388 [~]   (~) D 2001AJ....121.2843B
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (3) :
B 20.6 [~] D ~
V 20.6 [~] E ~
R 19.1 [~] E 2009A&A...495..691M
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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (50) :

4C 45.51 IVS B2351+456 QSO B2351+45 WN B2351.8+4536A
B3 2351+456 JVAS J2354+458 QSO J2354+4553 WN B2351.8+4536
BWE 2351+4536 JVAS B2351+456 QSO B2351+4536 [HB93] 2351+456
CJ1 2351+456 1Jy 2351+45 QSO B2351+456 [MGL2009] BZQ J2354+4553
CJF B2351+456 1Jy 2351+456 RORF 2351+456 [PW82] 2351+45
3EG J2358+4604 LEDA 2820911 S4 2351+456 [VV2000] J235421.7+455304
EGR J2357+4602 MITG J235419+4552 S4 2351+45 [VV2003] J235421.7+455304
GB6 J2354+4553 MITG J2354+4552 TXS 2351+456 [VV2006] J235421.7+455304
GB6 B2351+4536 MY 235152.3+453624.4 VSOP J2354+4553 [VV2010] J235421.7+455304
87GB 235149.3+453627 MY 235147.6+453530.1 WB 2351+4536 [VV96] J235421.7+455304
ICRF J235421.6+455304 NEWPS5 J2354+4553 WMAP 74 [VV98] J235421.7+455304
IERS B2351+456 NVSS J235421+455304 WMAP J2354+4550
INTREF 1118 OHIO Z 486 WMAP J2354+4554

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References (154 between 1850 and 2015)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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                                  Sort reference summaries by : (not exhaustive, explanation here)

                                 


Measurements (4 types) :


posa : 2    velocities : 5    Z : 4    ze : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database

Catalogue information from VizieR :

Generic search by coordinates (radius: 5 arcsec)

4C 45.51 BWE 2351+4536 3EG J2358+4604 IERS B2351+456 MITG J235419+4552
MITG J2354+4552 NVSS J235421+455304 VSOP J2354+4553 WN B2351.8+4536A WN B2351.8+4536

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

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2015.09.03-14:50:08

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