3FHL J1231.4+1422

Basic data :
2E 2750 -- 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: QSO (), BLL (2008AJ,[VV2000b],...), Bla (2012ApJ,[MGL2009],...), X (2009A&A,CXO,...), Bz? (2019A&A,3HSP,...), gam (2FGL,3FGL,...), G (2014ApJ,2MASX), Rad (FIRST,GB6,...), BL? (2011NewA), MIR (WISEA,WISE), Opt (LAMOST,SDSS), AGN (2020MNRAS), * (Gaia), NIR (2MASS) 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 31 23.9056875672 +14 21 24.429803472 (Optical) [ 0.1256 0.0921 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) : 12 28 52.4128986887 +14 37 57.945292631 [ 0.1256 0.0921 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) : 281.8432212489825 +76.4011446773945 [ 0.1256 0.0921 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 : -0.041 -0.536 [0.178 0.145 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) 67128 [24] / z(spectroscopic) 0.25580 [0.00008] / cz 76686.9 [24.0]    (Opt) C 2012ApJS..203...21A 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): 0.127 0.127 90 (NIR) C 2006AJ....131.1163S 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) : V 17.70 [~] E ~ R 16.9 [~] E 2009A&A...495..691M G 17.919439 [0.017681] C 2020yCat.1350....0G J 15.309 [0.194] D 2006AJ....131.1163S H 14.527 [0.247] D 2006AJ....131.1163S K 13.664 [0.156] D 2006AJ....131.1163S u (AB) 18.163 [0.015] C 2009ApJS..182..543A g (AB) 17.723 [0.006] C 2009ApJS..182..543A r (AB) 17.214 [0.005] C 2012ApJS..203...21A i (AB) 16.897 [0.005] C 2009ApJS..182..543A z (AB) 16.627 [0.009] C 2009ApJS..182..543A	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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).

2MASS J12312391+1421244	GB6 J1231+1421	SDSS J123123.90+142124.4	[VV2000b] J123123.9+142125
CXO J123123.9+142124	3HSP J123123.1+142124	TIC 365994086	[VV2003b] J123123.9+142125
2E 2750	LAMOST J123123.91+142124.4	2WHSP J123123.8+142124	[VV2006b] J123123.9+142125
2E 1228.8+1438	2MASX J12312389+1421244	WISEA J123123.91+142124.4	[VV2010b] J123123.9+142125
2FGL J1231.6+1417	NVSS J123123+142123	WISE J123123.91+142124.4	[VV98b] J123123.9+142125
3FGL J1231.8+1421	1REX J123123+1421.3	2XMM J123123.9+142124	Gaia DR3 3932939490394183552
4FGL J1231.5+1421	1REX J123133+1421.3	9Y-MST J1231+1421	Gaia DR2 3932939490394183552
3FHL J1231.4+1422	REX J1231.4+1421	[MGL2009] BZB J1231+1421
FIRST J123123.9+142124	SDSS J123123.91+142124.4	[MML2015] 5BZB J1231+1421

References (65 between 1850 and 2024) (Total 65) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : 2E 2750

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