7C 173836.20+473929.00

Query : 7C 173836.20+473929.00

Basic data :
7C 173836.20+473929.00 -- 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,7C,...), BLL (2005ApJ,[VV2000b],...), gam (2FGL,3FGL,...), Bla ([IN88],[MGL2009],...), QSO (2016A&A,QSO,...), AGN (2011ApJ,CGRaBS), IR (WISEA,WISE), Bz? ([SRM2005]), * (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 39 57.12907095 +47 37 58.3614787 (Radio) [ 0.0354797 0.0387 0 ] A 2020A&A...644A.159C
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 38 36.33016368 +47 39 28.7696361 [ 0.0354797 0.0387 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] : 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) :
074.22245367785 +31.39605103292 [ 0.0354797 0.0387 0 ]
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 :
-0.279 0.254 [0.236 0.313 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) 174944 [~] / z(spectroscopic) 0.95 [~] / cz 284803 [~]
   (Opt) D 2017ApJS..233....3T
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):
0.2822 [0.2734] 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):
0.0000090 0.0000057 6 (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 (4) :
B 18.5 [~] E ~
V 19.5 [~] E ~
R 18.88 [~] D 2008ApJS..175...97H
G 19.666096 [0.029568] C 2020yCat.1350....0G
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 (51) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

7C 173836.20+473929.00 ICRF J173957.1+473758 OHIO T 465 [IN88] 1738+476
BWE 1738+4739 IERS B1738+476 QSO B1738+476 [MGL2009] BZB J1739+4737
CGRaBS J1739+4737 IVS B1738+476 QSO J1739+4737 [MML2015] 5BZB J1739+4737
CJ1 1738+476 JVAS B1738+476 RORF 1738+476 [SRM2005] J173957.12+473758.3
CJF B1738+476 JVAS J1739+476 S4 1738+47 [VV2000b] J173957.1+473759
CLASS J173957.1274+473758.357 JVAS J1739+4737 S4 1738+476 [VV2003b] J173957.1+473759
2FGL J1740.3+4738 MASIV J1739+4737 WB 1738+4739 [VV2006b] J173957.1+473759
3FGL J1740.3+4736 MITG J173958+4737 WISEA J173957.12+473758.3 [VV2010b] J173957.1+473759
4FGL J1740.0+4737 MY 173836.1+474005.5 WISE J173957.13+473758.4 [VV98b] J173957.1+473759
3FHL J1740.0+4737 MY 173836.7+473924.0 WISE J173957.12+473758.3 Gaia DR3 1363579827887170176
FIRST J173957.1+473758 MY 173836.1+473835.1 WN B1738.6+4739 Gaia DR1 1363579823594466560
GB6 B1738+4739 MY 173836.7+473753.6 9Y-MST J1739+4737 Gaia DR2 1363579827887170176
87GB 173838.4+473930 NVSS J173957+473758 [HB93] 1738+476

References (118 between 1850 and 2023) (Total 118)
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 : 1    PLX : 2    PM : 3   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 7C 173836.20+473929.00

Link by name to the catalogue in VizieR :

BWE 1738+4739 FIRST J173957.1+473758 IERS B1738+476 MITG J173958+4737 NVSS J173957+473758
WISEA J173957.12+473758.3 WISE J173957.13+473758.4 WISE J173957.12+473758.3 WN B1738.6+4739 Gaia DR3 1363579827887170176
Gaia DR1 1363579823594466560 Gaia DR2 1363579827887170176

Search by coordinates in Vizier (radius: 5 arcsec)


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2023.02.04-09:16:42

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