8C 1803+784

Query : 8C 1803+784 C.D.S. - SIMBAD4 rel 1.225 - 2015.08.30CEST05:32:08

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


Basic data :
8C 1803+784 -- 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,8C,CJF,ICRF,IERS,IVS​,JVAS,1Jy,KNOWS,MASIV​,NVSS,RORF,S5,VSOP​,WB,WMAP,WN,[HMI96],[PW82]), QSO (Ref,QSO,[BDW2002],[HB93],[VV2000],[VV2003]​,[VV2006],[VV2010]), gam (0FGL,1FGL,2FGL,1FHL), Bla ([DGT2001],[IN88],[MGL2009]), IR (IRAS,2MASS,WISE), X (Ref,2E,1RXS), BLL (Ref,[VV98b]), AGN (Ref,CGRaBS), Bz? ([SRM2005]), AG? (Ref)
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) :
18 00 45.68401 +78 28 04.0187 ( Radio ) [ 0.16 0.15 90 ] 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) :
18 00 45.684 +78 28 04.02 [ 0.16 0.15 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) :
18 03 39.24 +78 27 54.3 [ 0.16 0.15 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) :
110.0376 +29.0650 [ 0.16 0.15 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) 142932 [~] / z(spectroscopic) 0.680 [~] / cz 203859 [~]   (~) D 2011NewA...16..503M
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):
0.0000088 0.0000068 82 (~) (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 16.4 [~] D ~
V 16.4 [~] D ~
R 15.46 [~] D 2008ApJS..175...97H
J 12.433 [0.021] C 2003yCat.2246....0C
H 11.617 [0.019] C 2003yCat.2246....0C
K 10.804 [0.015] 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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (51) :

8C 1803+784 IVS B1803+784 QSO J1800+7828 [DGT2001] B1803+784
CGRaBS J1800+7828 JVAS B1803+784 RORF 1803+784 [HB93] 1803+784
CJF B1803+784 JVAS J1800+7828 1RXS J180043.6+782806 [HMI96] 1803+7827
2E 4007 1Jy 1803+78 S5 1803+78 [IN88] 1803+784
2E 1803.5+7828 1Jy 1803+784 S5 1803+784 [MGL2009] BZB J1800+7828
0FGL J1802.2+7827 KNOWS J180044+782812 VSOP J1800+7828 [PW82] 1803+78
1FGL J1800.4+7827 MASIV J1800+7828 WB 1803+7827 [SRM2005] J180045.68+782804.0
2FGL J1800.5+7829 2MASS J18004568+7828040 WISE J180045.70+782804.1 [VV2000] J180045.7+782805
1FHL J1800.5+7829 NVSS J180045+782805 WMAP 72 [VV2003] J180045.7+782805
ICRF J180045.6+782804 NVSS J180045+782804 WMAP J1800+7828 [VV2006] J180045.7+782805
IERS B1803+784 QSO B1803+78 WMAP J1800+7827 [VV2010] J180045.7+782805
IRAS 18036+7827 QSO B1803+784 WN B1803.6+7827 [VV98b] J180045.7+782805
IRAS F18036+7827 QSO B1803+7827 [BDW2002] q1803+7827

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References (541 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    IRAS : 1    ISO : 3    posa : 2    velocities : 7    Z : 6    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 B1803+784 IRAS 18036+7827 IRAS F18036+7827 2MASS J18004568+7828040 NVSS J180045+782805
NVSS J180045+782804 1RXS J180043.6+782806 VSOP J1800+7828 WN B1803.6+7827

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

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2015.08.30-05:32:08

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