Ark 120

Basic data :
Mrk 1095 -- 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: G (2012A&A,Mrk,...), X (2E,1ES,...), AGN (2021ApJS,[HB91],...), QSO (QSO,[BDW2002],...), MIR (AKARI,WISEA,...), IR (IRAS,PSCz,...), Sy1 (2013ApJS), V* (2018AJ,AAVSO), Opt (ATO,SDSS), Y*O (2018ApJS), GiC (CAIRNS), * (Gaia), gam (INTREF), Rad (NVSS), 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) : 05 16 11.4092471904 -00 08 59.157166920 (Optical) [ 0.0237 0.0164 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) : 05 13 37.8736623468 -00 12 15.116420559 [ 0.0237 0.0164 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) : 201.6945381874995 -21.1315722063018 [ 0.0237 0.0164 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 : -0.002 -0.047 [0.033 0.021 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) 9605 [150] / z(emission) 0.03256885 [0.0005] / cz 9763.8956 [150]    (Opt) C 2022ApJS..261....2K 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: SA D 2021ApJS..256...40K 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): 0.427 0.350 5 (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) : B 14.30 [~] D 2010A&A...518A..10V V 13.92 [~] D 2010A&A...518A..10V G 14.234539 [0.018856] C 2020yCat.1350....0G J 11.262 [0.028] C 2006AJ....131.1163S H 10.638 [0.037] C 2006AJ....131.1163S K 9.848 [0.027] C 2006AJ....131.1163S u (AB) 14.467 [0.005] C 2009ApJS..182..543A g (AB) 12.651 [0.002] C 2009ApJS..182..543A r (AB) 13.410 [0.002] C 2009ApJS..182..543A i (AB) 11.596 [0.001] C 2009ApJS..182..543A z (AB) 12.847 [0.002] 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!).
Some important notes on this object about identifications and objects associations. notes: Misclassified YSO in 2018ApJS..236...27C!

Mrk 1095	LEDA 17013	RX J051612-00087	[BDW2002] q0513-0012
AKARI-IRC-V1 J0516114-000859	2MASS J05161140-0008592	SDSS J051611.40-000859.1	[DML87] 171
Ark 120	2MASX J05161139-0008596	SWIFT J0516.2-0009	[HB91] 0513-002
ATO J079.0475-00.1497	2MAXI J0516-001	SWIFT J0516.3-0008	[KRL2007b] 44
CAIRNS J051611.42-000859.4	MAXI J0516-001	TIC 249033980	[VV2000c] J051611.4-000900
6dFGS gJ051611.4-000859	MCG+00-14-018	UGC 3271	[VV2003c] J051611.4-000900
2E 1240	NVSS J051611-000900	UZC J051611.4-000900	[VV2006c] J051611.4-000900
2E 0513.6-0012	PBC J0516.1-0009	WISEA J051611.40-000859.1	[VV2010c] J051611.4-000900
1ES 0513-00.2	PSCz Q05136-0012	WISE J051611.40-000859.1	[VV98c] J051611.4-000900
H 0523-00	QDOT B0513369-001213	2XMM J051611.4-000859	[WTW94] 0513-002
INTREF 237	QSO B0513-002	XSS J05162-0008	AAVSO 0511-00B
IRAS 05136-0012	QSO B0513-0012	Z 395-23	Gaia DR3 3221556738534616064
IRAS F05136-0012	QSO J0516-0009	Z 0513.6-0012	Gaia DR2 3221556738534616064

References (890 between 1850 and 2024) (Total 890) 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 : Ark 120

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