QSO B1921-293

Query : QSO B1921-293 C.D.S. - SIMBAD4 rel 1.225 - 2015.08.04CEST05:27:16

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


Basic data :
QSO J1924-2914 -- BL Lac - type object
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,ICRF,IERS,IVS,MRC,NVSS​,OHIO,PKS,PMN,RORF​,VCS1,VSOP,WMAP,[CH94]​,[DSJ85],[GR92],[MEM2008],[NZ2007],[WCO2009]), QSO (Ref,QSO,[HB93],[VV2000],[VV2003],[VV2006]​,[VV2010]), X (Ref,2E,1ES,PBC,RX,1RXS), Bla (Ref,[DGT2001],[IN88],[MGL2009]), BLL (Ref,[VV98b]), AGN (Ref,CGRaBS), G (6dFGS,LEDA), IR (2MASS,WISE), gam (1FGL,2FGL), AG? (Ref), cm (AT20G), smm (JCMTSE)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 24 51.05589 -29 14 30.1209 ( Radio ) [ 0.40 0.20 0 ] A 2010AJ....139.1695L
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 24 51.056 -29 14 30.12 [ 0.40 0.20 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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 21 42.23 -29 20 26.4 [ 0.40 0.20 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra : right ascension (unit and frame defined according to your Output Options)
  • dec : declination (unit and frame defined according to your Output Options)
  • (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) :
009.3441 -19.6068 [ 0.40 0.20 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) 87895 [55] / z(~) 0.35263 [0.00018] / cz 105715.0 [55.0]  (Opt) C 2009MNRAS.399..683J
Syntax of angular size is : "maj-axis min-axis angle (incl) (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (incl) : inclination (in units of 15° from 0 to 7)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, ~ =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin):
0.0000123 0.0000048 -5 (~) (Rad) D 2010AJ....139.1713C
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 (6) :
B 18.71 [~] D 2008MNRAS.384..775M
V 18.21 [~] D 2010A&A...518A..10V
R 15.07 [~] D 2008ApJS..175...97H
J 14.958 [0.041] C 2003yCat.2246....0C
H 14.029 [0.045] C 2003yCat.2246....0C
K 13.141 [0.043] 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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (48) :

QSO B1921-293 IERS B1921-293 PMN J1924-2914 [GR92] 1921-293
AT20G J192451-291430 IVS B1921-293 QSO J1924-2914 [HB93] 1921-293
AT20G J192451.0-291430 JCMTSE J192451.2-291431 RORF 1921-293 [IN88] 1921-293
CGRaBS J1924-2914 LEDA 2830012 RX J1924.8-2914 [MEM2008] 255
6dFGS gJ192451.0-291430 2MASS J19245105-2914300 1RXS J192450.8-291437 [MGL2009] BZQ J1924-2914
2E 4245 MRC 1921-293 VCS1 J1924-2914 [NZ2007] 12
2E 1921.7-2920 NVSS J192451-291431 VSOP J1924-2914 [VV2000] J192451.1-291431
EQ 1921-29 OHIO V 236 WISE J192451.05-291430.0 [VV2003] J192451.1-291431
1ES 1921-29.3 OHIO V -236 WMAP J1924-2914 [VV2006] J192451.1-291431
1FGL J1925.2-2919 PBC J1924.4-2913 [CH94] 1921-293 [VV2010] J192451.1-291431
2FGL J1924.8-2912 PKS 1921-293 [DGT2001] B1921-293 [VV98b] J192451.1-291431
ICRF J192451.0-291430 PKS J1924-2914 [DSJ85] 1921-293 [WCO2009] J192452-291415

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References (465 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 (6 types) :


Einstein : 1    posa : 1    RVel : 1    velocities : 6    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)

IERS B1921-293 2MASS J19245105-2914300 NVSS J192451-291431 PKS 1921-293 PKS J1924-2914
PMN J1924-2914 1RXS J192450.8-291437 VSOP J1924-2914

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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2015.08.04-05:27:16

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