IERS B1242+574

Query : IERS B1242+574

Basic data :
[VV2006] J124510.0+570954 -- 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 (BWE,CLASS,...), gam (2FGL,3FGL,...), BLL (2009A&A), X (2007AJ,RX,...), IR (2MASS,WISEA,...), Bla ([MGL2009],[MML2015]), QSO ([VV2006],[VV2010]), Bz? ([SRM2005]), BL? (2007AJ), AGN (2011ApJ)
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) :
12 45 10.0003122020 +57 09 54.373135807 (Optical) [ 0.0774 0.0755 90 ] A 2018yCat.1345....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) :
12 42 56.1251839425 +57 26 17.863523946 [ 0.0774 0.0755 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) :
124.6292071583733 +59.9424769832415 [ 0.0774 0.0755 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 :
-0.395 0.110 [0.173 0.166 90] A 2018yCat.1345....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) 219595 [534] / z(spectroscopic) 1.54487 [0.00178] / cz 463140.4 [533.6]
   D 2009ApJS..182..543A
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 (11) :
B 18.33 [~] D 2010A&A...518A..10V
V 17.96 [~] D 2010A&A...518A..10V
G 17.5639 [0.0125] C 2018yCat.1345....0G
J 16.144 [0.079] C 2003yCat.2246....0C
H 15.203 [0.087] C 2003yCat.2246....0C
K 14.202 [0.068] C 2003yCat.2246....0C
u (AB) 18.250 [0.015] C 2009ApJS..182..543A
g (AB) 17.820 [0.006] B 2009ApJS..182..543A
r (AB) 17.439 [0.005] B 2009ApJS..182..543A
i (AB) 17.150 [0.006] B 2009ApJS..182..543A
z (AB) 16.511 [0.008] B 2012ApJS..203...21A
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 (32) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

[VV2006] J124510.0+570954 FIRST J124510.0+570954 RX J1245.1+5710 WN B1242.9+5726
BWE 1242+5728 GB6 J1245+5710 1RXS J124510.5+571020 9Y-MST J1244+5709
CLASS J124510.0009+570954.374 GB6 B1242+5726 SDSS J124510.00+570954.3 [BSF97] J124516.70+571121.4
2FGL J1245.1+5708 87GB 124255.6+572631 TIC 150318501 [MGL2009] BZB J1245+5709
3FGL J1244.8+5707 IERS B1242+574 WB 1242+5728 [MML2015] 5BZB J1245+5709
4FGL J1245.1+5709 2MASS J12450998+5709544 WISEA J124510.01+570954.3 [SRM2005] J124509.97+570954.6
1FHL J1244.9+5708 NVSS J124509+570954 WISE J124510.03+570954.3 [VV2010] J124510.0+570954
3FHL J1245.0+5709 RGB J1245+571 WISE J124510.01+570954.3 Gaia DR2 1577558397108187136

References (50 between 1850 and 2021) (Total 50)
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


PM : 1   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : IERS B1242+574

Link by name to the catalogue in VizieR :

BWE 1242+5728 FIRST J124510.0+570954 IERS B1242+574 2MASS J12450998+5709544 NVSS J124509+570954
1RXS J124510.5+571020 SDSS J124510.00+570954.3 WISEA J124510.01+570954.3 WISE J124510.03+570954.3 WISE J124510.01+570954.3
WN B1242.9+5726 Gaia DR2 1577558397108187136

Search by coordinates in Vizier (radius: 5 arcsec)


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2021.09.18-07:38:40

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