4C 73.18

Query : 4C 73.18 C.D.S. - SIMBAD4 rel 1.225 - 2015.08.29CEST08:09:23

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


Basic data :
ICRF J192748.4+735801 -- Seyfert 1 Galaxy
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:
Sy1 (), Rad (ICRF,BWE,4C,8C,CJF,GB3​,GB6,87GB,IERS,JVAS​,1Jy,KNOWS,MY,NB​,NVSS,PKS,RORF,S5​,VSOP,WB,WMAP,WN,[JSE87],[PW82],[WCO2009]), QSO (Ref,QSO,[BDW2002],[HB93],[VV2000],[VV2003]​,[VV2006],[VV2010],[VV96],[VV98]), X (Ref,1ES,1RXS,[BAG2012],[FS2003]), Bla (Ref,[DGT2001],[MGL2009]), IR (2MASS,WISE), UV (PG), BH? ([KB2007]), Bz? ([SRM2005]), AG? (Ref), AGN (CGRaBS), gam (INTREF)
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) :
19 27 48.49517 +73 58 01.5701 ( Radio ) [ 0.520 0.092 90 ] A 2009A&A...493..317L
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) :
19 27 48.495 +73 58 01.57 [ 0.520 0.092 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) :
19 28 49.38 +73 51 44.9 [ 0.520 0.092 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) :
105.6259 +23.5409 [ 0.520 0.092 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) 89382 [~] / z(~) 0.360 [~] / cz 107925 [~]   (~) D 2001A&A...375..739D
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 (5) :
V 15.5 [~] D ~
R 15.11 [~] D 2008ApJS..175...97H
J 14.287 [0.035] C 2003yCat.2246....0C
H 13.496 [0.040] C 2003yCat.2246....0C
K 12.488 [0.031] C 2003yCat.2246....0C
SIMBAD with radius arcmin
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VizieR photometry viewer    sed-help-icon
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.
essential notes:
  • QSO 1928+738A, B, C


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (59) :

ICRF J192748.4+735801 JVAS B1927+739 RORF 1928+738 [FS2003] 1023
BWE 1928+7351 1Jy 1928+738 1RXS J192748.0+735757 [HB93] 1928+738
4C 73.18 1Jy 1928+73 S5 1928+738 [JSE87] 1928+738 1
8C 1928+738 KNOWS J192754+735816 S5 1928+73 [KB2007] J192748.5+735802.0
CGRaBS J1927+7358 2MASS J19274848+7358013 VSOP J1927+7358 [MGL2009] BZQ J1927+7358
CJF B1928+738 MY 192848.2+735149.9 WB 1928+7351 [PW82] 1928+73
1ES 1928+73.8 NB 73.20 WISE J192748.49+735801.5 [SRM2005] J192748.49+735801.5
GB3 1928+738 NVSS J192748+735802 WMAP 70 [VV2000] J192748.6+735802
GB6 B1928+7351 PG 1928+738 WMAP J1927+7357 [VV2003] J192748.6+735802
GB6 J1927+7357 PKS 1928+738 WMAP J1927+7358 [VV2006] J192748.6+735802
87GB 192847.4+735146 QSO J1927+73 WMAP J1927+7402 [VV2010] J192748.6+735802
IERS B1928+738 QSO B1928+738 WN B1928.8+7351 [VV96] J192748.6+735802
INTREF 978 QSO J1927+7358 [BAG2012] 292.1210+73.9471 [VV98] J192748.6+735802
JVAS J1927+739 QSO B1928+7351 [BDW2002] q1928+7351 [WCO2009] J192742+735634
JVAS B1928+738 QSO B1928+73 [DGT2001] B1928+738

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References (416 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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Measurements (7 types) :


Einstein : 1    ISO : 4    IUE : 3    posa : 1    velocities : 4    Z : 3    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)

BWE 1928+7351 4C 73.18 IERS B1928+738 2MASS J19274848+7358013 NVSS J192748+735802
PG 1928+738 PKS 1928+738 1RXS J192748.0+735757 VSOP J1927+7358 WN B1928.8+7351

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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2015.08.29-08:09:23

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