Mrk 926

Basic data :
Mrk 926 -- Seyfert 1 Galaxy 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: X (2007AJ,2A,...), G (2012ApJS,Mrk,...), QSO (QSO,[VV2000],...), AGN (2007AJ,[HB91],...), Rad (FIRST,GLEAM,...), Sy1 (2013ApJS), * (GSC,Gaia), MIR (WISEA,WISE), SyG (2013ApJS), gam (INTREF), NIR (2MASS), IR (2MASSI), Opt (SDSS) 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) : 23 04 43.4776098480 -08 41 08.629476864 (Optical) [ 0.0327 0.0267 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) : 23 02 07.1746126574 -08 57 20.570191422 [ 0.0327 0.0267 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) : 064.0915153685796 -58.7576523670954 [ 0.0327 0.0267 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 : 0.030 0.051 [0.038 0.033 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) 13765 [3] / z(spectroscopic) 0.04702 [0.00001] / cz 14096.2 [3.0]    (Opt) C 2012ApJS..203...21A Syntax of morphological type is : mtype quality bibcode mtype : Hubble morphological class (spirals, ellipticals, etc) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the morphological type reference Morphological type: S0a D ~ 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): 0.520 0.447 95 (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 (12) : B 16.20 [~] D 2010A&A...518A..10V V 15.91 [~] D 2010A&A...518A..10V R 9.4 [~] E 2010MNRAS.401.1151M G 14.954986 [0.011562] C 2020yCat.1350....0G J 11.837 [0.028] C 2006AJ....131.1163S H 11.057 [0.037] C 2006AJ....131.1163S K 10.639 [0.041] C 2006AJ....131.1163S u (AB) 15.489 [0.006] B 2011yCat.2306....0A g (AB) 14.523 [0.002] B 2011yCat.2306....0A r (AB) 13.851 [0.002] B 2011yCat.2306....0A i (AB) 13.386 [0.002] B 2011yCat.2306....0A z (AB) 13.180 [0.003] B 2011yCat.2306....0A	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!).

Mrk 926	2MASS J23044347-0841086	RX J2304.7-0841	XSS J23040-0834
2A 2303-088	2MASSI J2304434-084108	1RXS J230443.8-084106	[HB91] 2302-089
2A 2302-088	2MASX J23044349-0841084	SDSS J230443.47-084108.6	[KRL2007b] 401
3A 2302-089	2MAXI J2304-085	SWIFT J2304.8-0843	[VV2000] J230443.5-084108
6dFGS gJ230443.5-084109	MAXI J2305-085	SWIFT J2304.7-0841	[VV2003] J230443.5-084108
FIRST J230443.4-084108	MBG 23021-0857	SWIFT J2304.8-0841	[VV2006c] J230443.5-084108
GLEAM J230443-084105	MCG-02-58-022	TGSSADR J230443.5-084108	[VV2010c] J230443.5-084108
GSC 05820-01110	NPM1G -08.0639	TIC 4423127	[VV96] J230443.5-084108
1H 2303-089	NVSS J230443-084107	4U 2305-07	[VV98] J230443.5-084108
HE 2302-0857	PBC J2304.7-0841	1WGA J2304.7-0841	Gaia DR2 2607139058132559232
H 2302-090	QSO B2302-0857	WISEA J230443.48-084108.6	Gaia DR3 2607139058132559232
INTREF 1101	QSO B2302-089	WISE J230443.48-084108.4
LEDA 70409	RBS 1940	2XMM J230443.3-084111

References (444 between 1850 and 2023) (Total 444) 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 : Mrk 926

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