IERS B1742-078

Query : IERS B1742-078

Basic data :
QSO J1745-0753 -- BL Lac
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 (2010AJ,ICRF,...), gam (1FGL,2FGL,...), BLL (2010ApJ), Bla (2009A&A,[MGL2009],...), IR (2MASS,WISEA,...), QSO (2016A&A,QSO), AGN (2011ApJ,CGRaBS), Bz? (2008ApJS), * (Gaia), X (2009A&A)
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 45 27.1049566944 -07 53 03.952303800 (Optical) [ 0.2290 0.1894 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 42 44.1044489023 -07 51 54.453606146 [ 0.2290 0.1894 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) :
018.1657828521102 +10.8232545284999 [ 0.2290 0.1894 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 :
-0.015 0.198 [0.291 0.200 90] A 2020yCat.1350....0G
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):
0.1366 [0.2778] A 2020yCat.1350....0G
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (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 0.0000047 -3 (Rad) D 2010AJ....139.1713C
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 (5) :
R 17.85 [~] D 2008ApJS..175...97H
G 19.094770 [0.015297] C 2020yCat.1350....0G
J 16.630 [0.131] D 2011NewA...16..503M
H 15.26 [0.09] C 2003yCat.2246....0C
K 14.43 [0.07] C 2003yCat.2246....0C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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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!).
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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 (29) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO J1745-0753 ICRF J174527.1-075303 TIC 297532724 [MGL2009] BZB J1745-0753
CGRaBS J1745-0753 IERS B1742-078 TXS 1742-078 [MML2015] 5BZB J1745-0753
1FGL J1745.6-0751 IVS B1742-078 VCS2 J1745-0753 Gaia EDR3 4168688969666347264
2FGL J1745.5-0751 2MASS J17452710-0753040 VLSS J1745.4-0752 Gaia DR1 4168688969666347264
3FGL J1745.4-0754 MRC 1742-078 VSOP J1745-0753 Gaia DR2 4168688969666347264
4FGL J1745.4-0753 NVSS J174527-075304 WISEA J174527.10-075303.8
2FHL J1745.4-0752 PMN J1745-0753 WISE J174527.10-075303.7
3FHL J1745.4-0752 QSO B1742-078 WISE J174527.10-075303.8

References (62 between 1850 and 2022) (Total 62)
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


PLX : 1    PM : 2   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1742-078

Link by name to the catalogue in VizieR :

IERS B1742-078 2MASS J17452710-0753040 NVSS J174527-075304 PMN J1745-0753 VSOP J1745-0753
WISEA J174527.10-075303.8 WISE J174527.10-075303.7 WISE J174527.10-075303.8 Gaia EDR3 4168688969666347264 Gaia DR1 4168688969666347264
Gaia DR2 4168688969666347264

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2022.06.29-18:29:09

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