QSO J1719+4804

Query : QSO J1719+4804

Basic data :
QSO J1719+4804 -- Blazar
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 (2020A&A,BWE,...), QSO (2005ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), X (2009A&A,1AXG,...), AGN (2016AJ,CGRaBS), UV (PG,UVQS), Bz? ([SRM2005]), * (Gaia), gam (INTREF), NIR (2MASS), MIR (WISE), IR (2MASSI), Opt (LAMOST)
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		17 19 38.2496454120 +48 04 12.247659408 (Optical) [ 0.0148 0.0168 90 ] A 2020yCat.1350....0G
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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		17 18 17.7238534743 +48 07 10.641273786 [ 0.0148 0.0168 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] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    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) : 		074.3749840909477 +34.8290187116085 [ 0.0148 0.0168 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 : 		-0.010 0.025 [0.019 0.022 90] A 2020yCat.1350....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) 187487 [~] / z(emission) 1.083 [~] / cz 324675 [~]
   (Opt) C 2017AJ....154..114O
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 15.33 [~] E ~
V 14.60 [~] E ~
R 14.25 [~] D 2008ApJS..175...97H
G 14.742741 [0.002889] C 2020yCat.1350....0G
J 13.460 [0.027] C 2003yCat.2246....0C
H 13.046 [0.024] C 2003yCat.2246....0C
K 12.578 [0.030] C 2003yCat.2246....0C
SIMBAD within arcmin
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within 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!). sed-help-icon
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 (49) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO J1719+4804 IVS B1718+481 RX J1719.6+4804 [VV2000] J171938.4+480413
1AXG J171940+4803 KODIAQ J171938+480412 1RXS J171937.9+480409 [VV2003] J171938.3+480413
BWE 1718+4806 LAMOST J171938.28+480412.5 TIC 188667251 [VV2006] J171938.3+480413
CGRaBS J1719+4804 LAMOST J171938.29+480412.5 UVQS J171938.24+480412.2 [VV2010] J171938.3+480413
CLASS J171938.2561+480412.259 2MASS J17193824+4804124 VCS5 J1719+4804 [VV96] J171938.4+480413
CRATES J171937+480404 2MASSI J1719382+480412 VIPS J17196+4804 [VV98] J171938.4+480413
EF B1718+4807 MITG J171935+4804 WISE J171938.25+480412.3 [ZEH2003] RX J1719.6+4804 1
FIRST J171938.2+480412 NVSS J171938+480412 WISE J171938.24+480412.2 Gaia DR3 1365900793853830144
GB6 B1718+4807 PG 1718+481 [BDW2002] q1718+4807 Gaia DR1 1365900789558355712
87GB 171816.3+480654 QSO B1718+481 [HB93] 1718+481 Gaia DR2 1365900793853830144
ICRF J171938.2+480412 QSO B1718+4807 [MGL2009] BZQ J1719+4804
IERS B1718+481 RGB J1719+480 [MML2015] 5BZQ J1719+4804
INTREF 771 RGB J1719.6+4804 [SRM2005] J171938.25+480412.2

References (181 between 1850 and 2024) (Total 181)
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


velocities : 11    PM : 2   

   

Observing logs


ISO : 9    IUE : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : QSO J1719+4804

Link by name to the catalogue in VizieR :

BWE 1718+4806 FIRST J171938.2+480412 IERS B1718+481 2MASS J17193824+4804124 2MASSI J1719382+480412
MITG J171935+4804 NVSS J171938+480412 PG 1718+481 1RXS J171937.9+480409 WISE J171938.25+480412.3
WISE J171938.24+480412.2 Gaia DR3 1365900793853830144 Gaia DR1 1365900789558355712 Gaia DR2 1365900793853830144

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
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