M90

Basic data :
M 90 -- Seyfert 2 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: Sy2 (), G (2014ApJS,APG,...), X (1E,RX,...), AGN ([VV2000c],[VV2003c],...), IR (IRAS,ISOSS,...), Rad (NVSS,[SMM2006b]), GiC (VPC), GiG ([CHM2007]), AG? (2020MNRAS), * (Gaia), HI (ALFALFA), NIR (2MASS), 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) : 12 36 49.8009839880 +13 09 46.523813040 (Optical) [ 0.1950 0.1713 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 34 18.4851305275 +13 26 16.645239624 [ 0.1950 0.1713 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) : 288.4672049668234 +75.6228301778323 [ 0.1950 0.1713 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 : -0.238 -0.395 [0.280 0.252 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) -199 [4] / z(emission) -0.000664 [0.000013] / cz -198.93 [4.00]    (Rad) C 2022ApJS..261...21Y 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): 0.072 [0.229] A 2020yCat.1350....0G 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: S_AB C 2019MNRAS.488..590B 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): 9.77 4.37 23 (Opt) D 2003A&A...412...45P 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) : U 10.56 [0.09] D 2007ApJS..173..185G B 10.26 [0.08] D 2007ApJS..173..185G V 9.54 [0.08] D 2007ApJS..173..185G G 14.436084 [0.006190] C 2020yCat.1350....0G J 7.503 [0.020] C 2006AJ....131.1163S H 6.788 [0.024] C 2006AJ....131.1163S K 6.581 [0.027] C 2006AJ....131.1163S u (AB) 15.011 [0.012] C 2009ApJS..182..543A g (AB) 15.158 [0.013] C 2009ApJS..182..543A r (AB) 10.984 [0.006] C 2009ApJS..182..543A i (AB) 10.382 [0.007] C 2009ApJS..182..543A z (AB) 12.665 [0.007] 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: See GALEX UV data in GALEX data

M 90	NGC 4569	VPC 1082	[TBH2001] PSPC 14
ALFALFA 1-370	NVSS B123418+132627	Z 70-192	[THP2000] NGC 4569 0
APG 76	PCCS1 857 G288.41+75.62	Z 1234.3+1326	[VDD93] 166
1E 1234.2+1326	PCCS1 545 G288.44+75.62	[BEC2010] HRS 217	[VV2000c] J123649.9+130950
EVCC 2184	PSCz Q12343+1326	[CHM2007] HDC 720 J123649.81+1309463	[VV2003c] J123649.9+130950
IRAS 12343+1326	RX J123650+13092	[CHM2007] LDC 904 J123649.81+1309463	[VV2006c] J123649.9+130950
IRAS F12343+1326	RX J123649.7+130947	[DSB94] 236	[VV2010c] J123649.9+130950
ISOSS J12368+1311	RX J1236.8+1309	[LB2005] NGC 4569 X1	[VV98c] J123649.9+130950
LEDA 42089	SDSS J123649.79+130946.6	[M98c] 123418.7+132618	[YOF95] 206
LJHY 39	TIC 87586513	[RW2000] NGC 4569 X-1	EQ 1234+134
2MASS J12364979+1309465	UGC 7786	[SLK2004] 724	Gaia DR3 3931816884728312320
2MASX J12364981+1309463	UZC J123649.7+130946	[SMM2006b] J123649.82+130946.7
MCG+02-32-155	VCC 1690	[TBH2001] HRI 6

References (885 between 1850 and 2024) (Total 885) 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 : M90

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