QSO B2251+158

Query : QSO B2251+158 C.D.S. - SIMBAD4 rel 1.225 - 2015.09.01CEST08:02:31

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


Basic data :
3C 454.3 -- 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 (Ref,3C,BWE,4C,Cul,DA​,GB6,87GB,ICRF,IERS​,JVAS,1Jy,MASIV,MRC​,NEWPS5,NRAO,NVSS,OHIO​,PKS,RGB,RORF,S2​,SIM,TXS,UT,VRO,VSOP,WB,WK,WMAP,[GGR94],[WCO2009]), QSO (Ref,QSO,[BDW2002],[HB93],[S77],[SBS92]​,[VV2000],[VV2003],[VV2006],[VV2010]​,[VV96],[VV98],[VYP98],[WTW94]), gam (1AGL,1AGLR,2EG,3EG,EGR,0FGL​,1FGL,2FGL,1FHL,GeV​,INTREF,[LBD96]), X (Ref,1E,2E,PBC,RBS,RX​,1RXS,SWIFT,2XMMi,[KRL2007b]), Bla (Ref,[DGT2001],[IN88],[MGL2009]), IR (2MASS,2MASSI,WISE), AGN (Ref,CGRaBS), smm (JCMTSE,JCMTSF), V* (AAVSO), AG? (Ref), G (LEDA), UV (KUV)
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) :
22 53 57.74798 +16 08 53.5611 ( Radio ) [ 0.11 0.04 0 ] A 2010AJ....139.1695L
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) :
22 53 57.748 +16 08 53.56 [ 0.11 0.04 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 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) :
22 51 29.53 +15 52 54.2 [ 0.11 0.04 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 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) :
086.1111 -38.1838 [ 0.11 0.04 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) 165232 [51] / z(~) 0.859001 [0.000170] / cz 257522.02 [50.96]   (~) D 2002LEDA.........0P
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):
0.0000122 0.0000052 8 (~) (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 16.57 [~] D 2010A&A...518A..10V
V 16.10 [~] D 2010A&A...518A..10V
R 15.22 [~] D 2008ApJS..175...97H
J 14.494 [0.030] C 2003yCat.2246....0C
H 13.855 [0.030] C 2003yCat.2246....0C
K 13.061 [0.027] C 2003yCat.2246....0C
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!).

Some important notes on this object about identifications and objects associations.
essential notes:


The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (93) :

3C 454.3 IERS B2251+158 QSO J2253+1608 [BDW2002] q2251+1552
1AGL J2254+1602 INTREF 1090 QSO B2251+158 [DGT2001] B2251+158
1AGL J2254+1603 JCMTSE J225357.6+160856 QSO B2251+1552 [GGR94] 2251+158
1AGLR J2254+1609 JCMTSF J225357.6+160856 QSO B2251+159 [HB93] 2251+158
BWE 2251+1552 JVAS J2253+1608 RBS 1911 [IN88] 2251+158
4C 15.76 JVAS B2251+158 RGB J2254.0+1608 [KRL2007b] 398
CGRaBS J2253+1608 1Jy 2251+158 RORF 2251+158 [LBD96] J2253+1615
Cul 2251+158 1Jy 2251+15 RX J2253.9+1608 [MGL2009] BZQ J2253+1608
DA 586 KUV 22515+1553 1RXS J225358.0+160855 [S77] 380
1E 2251.5+1553 LEDA 2819327 S2 2251+15 [SBS92] 2251+158
2E 4646 MASIV J2253+1608 SIM 2251+15.0 [VV2000] J225357.7+160853
2E 2251.5+1553 2MASS J22535774+1608536 SWIFT J2253.9+1608 [VV2003] J225357.7+160853
2EG J2253+1615 2MASSI J2253577+160853 TXS 2251+158 [VV2006] J225357.7+160853
3EG J2254+1601 MRC 2251+158 UT 2251+158 [VV2010] J225357.7+160853
EGR J2253+1606 NEWPS5 J2253+1608 VRO 15.22.05 [VV96] J225357.7+160853
0FGL J2254.0+1609 NRAO 701 VSOP J2253+1608 [VV98] J225357.7+160853
1FGL J2253.9+1608 NVSS J225357+160853 WB 2251+1552 [VYP98] 2251+158
2FGL J2253.9+1609 OHIO Y 185 WISE J225357.74+160853.6 [WCO2009] J225357+161011
1FHL J2253.9+1608 PBC J2253.9+1609 WK 463 [WTW94] 2251+158
GB6 B2251+1552 PKS J2253+1608 WMAP J2254+1608 [ZEH2003] RX J2253.9+1608 2
GB6 J2253+1608 PKS 2251+158 WMAP 55 AAVSO 2249+15
87GB 225129.8+155251 PKS 2251+15 WMAP J2253+1608
GeV J2253+1622 PLCKERC -857 G086.11-38.17 WMAP J2253+1609
ICRF J225357.7+160853 QSO B2251+155 2XMMi J225357.7+160853

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References (2015 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    ISO : 4    posa : 2    velocities : 9    Z : 8    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)

3C 454.3 BWE 2251+1552 4C 15.76 3EG J2254+1601 IERS B2251+158
2MASS J22535774+1608536 2MASSI J2253577+160853 NVSS J225357+160853 PKS J2253+1608 PKS 2251+158
PKS 2251+15 1RXS J225358.0+160855 VSOP J2253+1608

Annotations :
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2015.09.01-08:02:31

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