NGC 4839

Basic data :
NGC 4839 -- Radio 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 (2015ApJ,ECO,...), Rad (BWE,5C,...), GiC (CAIRNS,GIN,...), rG (2012MNRAS,[MO2001b],...), * (USNO,Gaia), X (2XMM,[FBH2004]), BiC (2008MNRAS), GiG ([CHM2007]), ClG (BAX), G? (2012ApJ), UV (FOCA), 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 57 24.3563164776 +27 29 52.203087132 (Optical) [ 16.0521 7.7222 90 ] C 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 54 59.0868006351 +27 46 04.297467381 [ 16.0521 7.7222 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) : 048.8512843252430 +88.6237906886747 [ 16.0521 7.7222 90 ] 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) 7249 [3] / z(spectroscopic) 0.02448 [0.00001] / cz 7338.9 [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: S0 D 2008ApJS..175...86P 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): 2.95 1.35 64 (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 13.56 [0.10] D 2007ApJS..173..185G B 13.02 [0.10] D 2007ApJS..173..185G V 12.06 [0.10] D 2007ApJS..173..185G G 20.732183 [0.041771] C 2020yCat.1350....0G J 10.086 [0.025] C 2006AJ....131.1163S H 9.331 [0.030] C 2006AJ....131.1163S K 9.199 [0.036] C 2006AJ....131.1163S u (AB) 15.300 [0.008] B 2012ApJS..203...21A g (AB) 13.385 [0.002] B 2012ApJS..203...21A r (AB) 12.459 [0.002] B 2012ApJS..203...21A i (AB) 12.025 [0.002] B 2012ApJS..203...21A z (AB) 11.782 [0.002] B 2012ApJS..203...21A	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 GMP 4943 See GALEX UV data in GALEX data See also Specfind radio flux densities.

NGC 4839	2MASX J12572435+2729517	VLSS J1257.3+2729	[FBH2004] X489
BAX 194.3515+27.4977	MCG+05-31-025	4W 1254+27W01	[FWB89] Galaxy 313
BWE 1254+2745	MPMM 206	7W 1254+27W01	[HHM2010] 194.35151+27.49782
5C 4.51	NGP9 F323-1098719	2XMM J125724.3+272952	[K94] 125459.19+274605.5
7C 125457.9+274602	NVSS J125724+272955	Z 1255.0+2746	[L84] A1656-G3
7C 125458.50+274615.00	10P 197	Z 160-39	[MHR2010] 194.3515+27.4978
CAIRNS J125724.39+272951.6	PiGSS J125724+272956	[BTM97] ACO 1656 3	[MO2001b] J125724.4+272950.4
ECO 3776	RGZ J125724.3+272952	[CHM2007] HDC 745 J125724.35+2729517	[MOL2003] A1656 J125724+272951
FOCA 0728-803	SDSS J125724.35+272952.1	[CHM2007] LDC 926 J125724.35+2729517	[OSR2002] c102
GB6 B1254+2746	TGSSADR J125724.1+272959	[CNM2001] 213	[ZBO89] ACO 1656-1
87GB 125453.1+274559	TT 4	[CRJ2004] J1257.4+2729	EQ 1254+277
GIN 758	UGC 8070	[D80] ACO 1656 31	Gaia DR3 1460676699008195840
GMP 4928	USNO-A2.0 1125-06622075	[DC78] UGC 8070
GP 886	UZC J125724.2+272954	[DFO95] 172
LEDA 44298	VLSSr J125723.7+272924	[DLB87] C1

References (462 between 1850 and 2023) (Total 462) 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 : NGC 4839

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