OJ-131

Query : OJ-131
C.D.S. - SIMBAD4 rel 1.7 - 2018.11.16CET01:26:19

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


Basic data :
QSO B0818-128 -- 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,Cul,...), BLL (Ref,[VV2000b],...), X (Ref,2E,...), Bla ([IN88],[MGL2009],...), QSO (Ref,QSO,...), IR (2MASS,WISE), gam (3FGL), * (Gaia), G (LEDA), cm (AT20G)
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) :
08 20 57.44762 -12 58 59.1695 (Radio) [ 0.460 0.029 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 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) :
08 18 36.25649 -12 49 25.0795 [ 29.054 21.300 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 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) :
235.20903359 +13.16486043 [ 0.460 0.029 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 :
-0.156 0.051 [0.581 0.426 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) 14102 [~] / z(spectroscopic) 0.0482 [~] / cz 14450 [~]
   D 2009ATel.2123....1S
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas):
0.1818 [0.5028] A 2018yCat.1345....0G
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 (7) :
B 15.30 [~] D 2010A&A...518A..10V
V 15.00 [~] D 2010A&A...518A..10V
R 16.5 [~] E 2009A&A...495..691M
G 19.1466 [0.0131] C 2018yCat.1345....0G
J 15.417 [0.052] C 2003yCat.2246....0C
H 14.644 [0.055] C 2003yCat.2246....0C
K 13.845 [0.055] 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 (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B0818-128 LEDA 2825456 RX J0820.9-1258 [MGL2015] 5BZB J0820-1258
AT20G J082057-125859 2MASS J08205744-1258590 1RXS J082057.3-125858 [VV2000b] J082057.4-125859
Cul 0818-128 MRC 0818-128 TXS 0818-128 [VV2003b] J082057.4-125859
2E 1969 NVSS J082057-125858 VLSS J0820.9-1258 [VV2006b] J082057.4-125859
2E 0818.5-1248 OHIO J -131 VSOP J0820-1258 [VV2010b] J082057.4-125859
3FGL J0820.9-1258 PKS J0820-1258 WISE J082057.44-125859.1 [VV98b] J082057.4-125859
ICRF J082057.4-125859 PKS 0818-128 [HB93] 0818-128 Gaia DR2 5726903379532514816
IERS B0818-128 PMN J0820-1258 [IN88] 0818-128 Gaia DR1 5726903379532514816
IVS B0818-128 RORF 0818-128 [MGL2009] BZB J0820-1258

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References (153 between 1850 and 2019) (Total 153)
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


PM : 1    PLX : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : OJ-131

Link by name to the catalogue in VizieR :

2E 1969 IERS B0818-128 2MASS J08205744-1258590 NVSS J082057-125858 PKS J0820-1258
PKS 0818-128 PMN J0820-1258 1RXS J082057.3-125858 VSOP J0820-1258 WISE J082057.44-125859.1
Gaia DR2 5726903379532514816 Gaia DR1 5726903379532514816

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

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2018.11.16-01:26:19

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