BWE 0621+4441

Basic data :
ICRF J062518.2+444001 -- 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 (2020A&A,ICRF,...), BLL (2010ApJ,[VV2000b],...), gam (1FGL,2FGL,...), Bla (2017A&A,[MGL2009],...), AGN (2011ApJ,CGRaBS), Bz? (2022ApJS,2WHSP), MIR (WISEA,WISE), BL? (2021MNRAS), G (2021AJ), * (Gaia), NIR (2MASS), 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) : 06 25 18.26537500 +44 40 01.6261460 (Radio) [ 0.0772366 0.0957 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) : 06 21 38.80643156 +44 41 44.0880638 [ 0.0772366 0.0957 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) : 169.77409388277 +14.39059510196 [ 0.0772366 0.0957 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 : 0.029 0.097 [0.110 0.079 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): 0.0508 [0.0961] 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): 0.0000142 0.0000047 -27 (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 (6) : V 16.80 [~] E ~ R 18.71 [~] D 2008ApJS..175...97H G 17.674683 [0.029147] C 2020yCat.1350....0G J 15.12 [0.05] C 2003yCat.2246....0C H 14.22 [0.04] C 2003yCat.2246....0C K 13.45 [0.04] 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 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!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities.

ICRF J062518.2+444001	1FHL J0625.3+4440	2MASS J06251826+4440014	[MML2015] 5BZB J0625+4440
BWE 0621+4441	3FHL J0625.3+4438	NVSS J062518+444001	[ODS2007] HFP J0625+4440
CGRaBS J0625+4440	GB6 J0625+4440	TIC 190055795	[VV2000b] J062518.3+444002
CJF B0621+446	87GB 062138.1+444145	VCS1 J0625+4440	[VV2003b] J062518.3+444002
CLASS J062518.2641+444001.625	IERS B0621+446	WB 0621+4441	[VV2006b] J062518.3+444002
CRATES J062517+444003	IVS B0621+446	2WHSP J062518.1+444000	[VV2010b] J062518.3+444002
1FGL J0625.4+4440	JVAS J0625+4440	WISEA J062518.26+444001.6	[VV98b] J062518.3+444002
2FGL J0625.2+4441	JVAS B0621+446	WISE J062518.26+444001.6	EQ 0621+446
3FGL J0625.2+4440	JVAS J0625+446	WN B0621.6+4441	Gaia DR3 959258512949818368
4FGL J0625.3+4439	LAMOST J062518.26+444001.6	[MGL2009] BZB J0625+4440	Gaia DR2 959258512949818368

References (99 between 1850 and 2024) (Total 99) 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 : BWE 0621+4441

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